Monthly Archives: December 2016

2016 thoughts and 2017 hopes from FrogHeart

This is the 4900th post on this blog and as FrogHeart moves forward to 5000, I’m thinking there will be some changes although I’m not sure what they’ll be. In the meantime, here are some random thoughts on the year that was in Canadian science and on the FrogHeart blog.

Changeover to Liberal government: year one

Hopes were high after the Trudeau government was elected. Certainly, there seems to have been a loosening where science communication policies have been concerned although it may not have been quite the open and transparent process people dreamed of. On the plus side, it’s been easier to participate in public consultations but there has been no move (perceptible to me) towards open government science or better access to government-funded science papers.

Open Science in Québec

As far as I know, la crème de la crème of open science (internationally) is the Montreal Neurological Institute (Montreal Neuro; affiliated with McGill University. They bookended the year with two announcements. In January 2016, Montreal Neuro announced it was going to be an “Open Science institution (my Jan. 22, 2016 posting),

The Montreal Neurological Institute (MNI) in Québec, Canada, known informally and widely as Montreal Neuro, has ‘opened’ its science research to the world. David Bruggeman tells the story in a Jan. 21, 2016 posting on his Pasco Phronesis blog (Note: Links have been removed),

The Montreal Neurological Institute (MNI) at McGill University announced that it will be the first academic research institute to become what it calls ‘Open Science.’  As Science is reporting, the MNI will make available all research results and research data at the time of publication.  Additionally it will not seek patents on any of the discoveries made on research at the Institute.

Will this catch on?  I have no idea if this particular combination of open access research data and results with no patents will spread to other university research institutes.  But I do believe that those elements will continue to spread.  More universities and federal agencies are pursuing open access options for research they support.  Elon Musk has opted to not pursue patent litigation for any of Tesla Motors’ patents, and has not pursued patents for SpaceX technology (though it has pursued litigation over patents in rocket technology). …

Then, there’s my Dec. 19, 2016 posting about this Montreal Neuro announcement,

It’s one heck of a Christmas present. Canadian businessmen Larry Tannenbaum and his wife Judy have given the Montreal Neurological Institute (Montreal Neuro), which is affiliated with McGill University, a $20M donation. From a Dec. 16, 2016 McGill University news release,

The Prime Minister of Canada, Justin Trudeau, was present today at the Montreal Neurological Institute and Hospital (MNI) for the announcement of an important donation of $20 million by the Larry and Judy Tanenbaum family. This transformative gift will help to establish the Tanenbaum Open Science Institute, a bold initiative that will facilitate the sharing of neuroscience findings worldwide to accelerate the discovery of leading edge therapeutics to treat patients suffering from neurological diseases.

‟Today, we take an important step forward in opening up new horizons in neuroscience research and discovery,” said Mr. Larry Tanenbaum. ‟Our digital world provides for unprecedented opportunities to leverage advances in technology to the benefit of science.  That is what we are celebrating here today: the transformation of research, the removal of barriers, the breaking of silos and, most of all, the courage of researchers to put patients and progress ahead of all other considerations.”

Neuroscience has reached a new frontier, and advances in technology now allow scientists to better understand the brain and all its complexities in ways that were previously deemed impossible. The sharing of research findings amongst scientists is critical, not only due to the sheer scale of data involved, but also because diseases of the brain and the nervous system are amongst the most compelling unmet medical needs of our time.

Neurological diseases, mental illnesses, addictions, and brain and spinal cord injuries directly impact 1 in 3 Canadians, representing approximately 11 million people across the country.

“As internationally-recognized leaders in the field of brain research, we are uniquely placed to deliver on this ambitious initiative and reinforce our reputation as an institution that drives innovation, discovery and advanced patient care,” said Dr. Guy Rouleau, Director of the Montreal Neurological Institute and Hospital and Chair of McGill University’s Department of Neurology and Neurosurgery. “Part of the Tanenbaum family’s donation will be used to incentivize other Canadian researchers and institutions to adopt an Open Science model, thus strengthening the network of like-minded institutes working in this field.”

Chief Science Advisor

Getting back to the federal government, we’re still waiting for a Chief Science Advisor. Should you be interested in the job, apply here. The job search was launched in early Dec. 2016 (see my Dec. 7, 2016 posting for details) a little over a year after the Liberal government was elected. I’m not sure why the process is taking so long. It’s not like the Canadian government is inventing a position or trailblazing in this regard. Many, many countries and jurisdictions have chief science advisors. Heck the European Union managed to find their first chief science advisor in considerably less time than we’ve spent on the project. My guess, it just wasn’t a priority.

Prime Minister Trudeau, quantum, nano, and Canada’s 150th birthday

In April 2016, Prime Minister Justin Trudeau stunned many when he was able to answer, in an articulate and informed manner, a question about quantum physics during a press conference at the Perimeter Institute in Waterloo, Ontario (my April 18, 2016 post discussing that incident and the so called ‘quantum valley’ in Ontario).

In Sept. 2016, the University of Waterloo publicized the world’s smallest Canadian flag to celebrate the country’s upcoming 150th birthday and to announce its presence in QUANTUM: The Exhibition (a show which will tour across Canada). Here’s more from my Sept. 20, 2016 posting,

The record-setting flag was unveiled at IQC’s [Institute of Quantum Computing at the University of Waterloo] open house on September 17 [2016], which attracted nearly 1,000 visitors. It will also be on display in QUANTUM: The Exhibition, a Canada 150 Fund Signature Initiative, and part of Innovation150, a consortium of five leading Canadian science-outreach organizations. QUANTUM: The Exhibition is a 4,000-square-foot, interactive, travelling exhibit IQC developed highlighting Canada’s leadership in quantum information science and technology.

“I’m delighted that IQC is celebrating Canadian innovation through QUANTUM: The Exhibition and Innovation150,” said Raymond Laflamme, executive director of IQC. “It’s an opportunity to share the transformative technologies resulting from Canadian research and bring quantum computing to fellow Canadians from coast to coast to coast.”

The first of its kind, the exhibition will open at THEMUSEUM in downtown Kitchener on October 14 [2016], and then travel to science centres across the country throughout 2017.

You can find the English language version of QUANTUM: The Exhibition website here and the French language version of QUANTUM: The Exhibition website here.

There are currently four other venues for the show once finishes its run in Waterloo. From QUANTUM’S Join the Celebration webpage,


  • Science World at TELUS World of Science, Vancouver
  • TELUS Spark, Calgary
  • Discovery Centre, Halifax
  • Canada Science and Technology Museum, Ottawa

I gather they’re still looking for other venues to host the exhibition. If interested, there’s this: Contact us.

Other than the flag which is both nanoscale and microscale, they haven’t revealed what else will be included in their 4000 square foot exhibit but it will be “bilingual, accessible, and interactive.” Also, there will be stories.

Hmm. The exhibition is opening in roughly three weeks and they have no details. Strategy or disorganization? Only time will tell.

Calgary and quantum teleportation

This is one of my favourite stories of the year. Scientists at the University of Calgary teleported photons six kilometers from the university to city hall breaking the teleportation record. What I found particularly interesting was the support for science from Calgary City Hall. Here’s more from my Sept. 21, 2016 post,

Through a collaboration between the University of Calgary, The City of Calgary and researchers in the United States, a group of physicists led by Wolfgang Tittel, professor in the Department of Physics and Astronomy at the University of Calgary have successfully demonstrated teleportation of a photon (an elementary particle of light) over a straight-line distance of six kilometres using The City of Calgary’s fibre optic cable infrastructure. The project began with an Urban Alliance seed grant in 2014.

This accomplishment, which set a new record for distance of transferring a quantum state by teleportation, has landed the researchers a spot in the prestigious Nature Photonics scientific journal. The finding was published back-to-back with a similar demonstration by a group of Chinese researchers.

The research could not be possible without access to the proper technology. One of the critical pieces of infrastructure that support quantum networking is accessible dark fibre. Dark fibre, so named because of its composition — a single optical cable with no electronics or network equipment on the alignment — doesn’t interfere with quantum technology.

The City of Calgary is building and provisioning dark fibre to enable next-generation municipal services today and for the future.

“By opening The City’s dark fibre infrastructure to the private and public sector, non-profit companies, and academia, we help enable the development of projects like quantum encryption and create opportunities for further research, innovation and economic growth in Calgary,” said Tyler Andruschak, project manager with Innovation and Collaboration at The City of Calgary.

As for the science of it (also from my post),

A Sept. 20, 2016 article by Robson Fletcher for CBC (Canadian Broadcasting News) online provides a bit more insight from the lead researcher (Note: A link has been removed),

“What is remarkable about this is that this information transfer happens in what we call a disembodied manner,” said physics professor Wolfgang Tittel, whose team’s work was published this week in the journal Nature Photonics.

“Our transfer happens without any need for an object to move between these two particles.”

A Sept. 20, 2016 University of Calgary news release by Drew Scherban, which originated the news item, provides more insight into the research,

“Such a network will enable secure communication without having to worry about eavesdropping, and allow distant quantum computers to connect,” says Tittel.

Experiment draws on ‘spooky action at a distance’

The experiment is based on the entanglement property of quantum mechanics, also known as “spooky action at a distance” — a property so mysterious that not even Einstein could come to terms with it.

“Being entangled means that the two photons that form an entangled pair have properties that are linked regardless of how far the two are separated,” explains Tittel. “When one of the photons was sent over to City Hall, it remained entangled with the photon that stayed at the University of Calgary.”

Next, the photon whose state was teleported to the university was generated in a third location in Calgary and then also travelled to City Hall where it met the photon that was part of the entangled pair.

“What happened is the instantaneous and disembodied transfer of the photon’s quantum state onto the remaining photon of the entangled pair, which is the one that remained six kilometres away at the university,” says Tittel.

Council of Canadian Academies and The State of Science and Technology and Industrial Research and Development in Canada

Preliminary data was released by the CCA’s expert panel in mid-December 2016. I reviewed that material briefly in my Dec. 15, 2016 post but am eagerly awaiting the full report due late 2017 when, hopefully, I’ll have the time to critique the material, and which I hope will have more surprises and offer greater insights than the preliminary report did.


Thank you to my online colleagues. While we don’t interact much it’s impossible to estimate how encouraging it is to know that these people continually participate and help create the nano and/or science blogosphere.

David Bruggeman at his Pasco Phronesis blog keeps me up-to-date on science policy both in the US, Canada, and internationally, as well as, keeping me abreast of the performing arts/science scene. Also, kudos to David for raising my (and his audience’s) awareness of just how much science is discussed on late night US television. Also, I don’t know how he does it but he keeps scooping me on Canadian science policy matters. Thankfully, I’m not bitter and hope he continues to scoop me which will mean that I will get the information from somewhere since it won’t be from the Canadian government.

Tim Harper of Cientifica Research keeps me on my toes as he keeps shifting his focus. Most lately, it’s been on smart textiles and wearables. You can download his latest White Paper titled, Fashion, Smart Textiles, Wearables and Disappearables, from his website. Tim consults on nanotechnology and other emerging technologies at the international level.

Dexter Johnson of the Nanoclast blog on the IEEE (Institute of Electrical and Electronics Engineers) website consistently provides informed insight into how a particular piece of research fits into the nano scene and often provides historical details that you’re not likely to get from anyone else.

Dr. Andrew Maynard is currently the founding Director of the Risk Innovation Lab at the University of Arizona. I know him through his 2020 Science blog where he posts text and videos on many topics including emerging technologies, nanotechnologies, risk, science communication, and much more. Do check out 2020 Science as it is a treasure trove.

2017 hopes and dreams

I hope Canada’s Chief Science Advisor brings some fresh thinking to science in government and that the Council of Canadian Academies’ upcoming assessment on The State of Science and Technology and Industrial Research and Development in Canada is visionary. Also, let’s send up some collective prayers for the Canada Science and Technology Museum which has been closed since 2014 (?) due to black mold (?). It would be lovely to see it open in time for Canada’s 150th anniversary.

I’d like to see the nanotechnology promise come closer to a reality, which benefits as many people as possible.

As for me and FrogHeart, I’m not sure about the future. I do know there’s one more Steep project (I’m working with Raewyn Turner on a multiple project endeavour known as Steep; this project will involve sound and gold nanoparticles).

Should anything sparkling occur to me, I will add it at a future date.

In the meantime, Happy New Year and thank you from the bottom of my heart for reading this blog!

Graphene and silly putty combined to create ultra sensitive sensors

One of my favourite kinds of science story is the one where scientists turn to a children’s toy for their research. In this case, it’s silly putty. Before launching into the science part of this story, here’s more about silly putty from its Wikipedia entry (Note: A ll links have been removed),

During World War II, Japan invaded rubber-producing countries as they expanded their sphere of influence in the Pacific Rim. Rubber was vital for the production of rafts, tires, vehicle and aircraft parts, gas masks, and boots. In the U.S., all rubber products were rationed; citizens were encouraged to make their rubber products last until the end of the war and to donate spare tires, boots, and coats. Meanwhile, the government funded research into synthetic rubber compounds to attempt to solve this shortage.[10]

Credit for the invention of Silly Putty is disputed[11] and has been attributed variously to Earl Warrick,[12] of the then newly formed Dow Corning; Harvey Chin; and James Wright, a Scottish-born inventor working for General Electric in New Haven, Connecticut.[13] Throughout his life, Warrick insisted that he and his colleague, Rob Roy McGregor, received the patent for Silly Putty before Wright did; but Crayola’s history of Silly Putty states that Wright first invented it in 1943.[10][14][15] Both researchers independently discovered that reacting boric acid with silicone oil would produce a gooey, bouncy material with several unique properties. The non-toxic putty would bounce when dropped, could stretch farther than regular rubber, would not go moldy, and had a very high melting temperature. However, the substance did not have all the properties needed to replace rubber.[1]

In 1949 toy store owner Ruth Fallgatter came across the putty. She contacted marketing consultant Peter C.L. Hodgson (1912-1976).[16] The two decided to market the bouncing putty by selling it in a clear case. Although it sold well, Fallgatter did not pursue it further. However, Hodgson saw its potential.[1][3]

Already US$12,000 in debt, Hodgson borrowed US$147 to buy a batch of the putty to pack 1 oz (28 g) portions into plastic eggs for US$1, calling it Silly Putty. Initially, sales were poor, but after a New Yorker article mentioned it, Hodgson sold over 250,000 eggs of silly putty in three days.[3] However, Hodgson was almost put out of business in 1951 by the Korean War. Silicone, the main ingredient in silly putty, was put on ration, harming his business. A year later the restriction on silicone was lifted and the production of Silly Putty resumed.[17][9] Initially, it was primarily targeted towards adults. However, by 1955 the majority of its customers were aged 6 to 12. In 1957, Hodgson produced the first televised commercial for Silly Putty, which aired during the Howdy Doody Show.[18]

In 1961 Silly Putty went worldwide, becoming a hit in the Soviet Union and Europe. In 1968 it was taken into lunar orbit by the Apollo 8 astronauts.[17]

Peter Hodgson died in 1976. A year later, Binney & Smith, the makers of Crayola products, acquired the rights to Silly Putty. As of 2005, annual Silly Putty sales exceeded six million eggs.[19]

Silly Putty was inducted into the National Toy Hall of Fame on May 28, 2001. [20]

I had no idea silly putty had its origins in World War II era research. At any rate, it’s made its way back to the research lab to be united with graphene according to a Dec. 8, 2016 news item  on Nanowerk,

Researchers in AMBER, the Science Foundation Ireland-funded materials science research centre, hosted in Trinity College Dublin, have used graphene to make the novelty children’s material silly putty® (polysilicone) conduct electricity, creating extremely sensitive sensors. This world first research, led by Professor Jonathan Coleman from TCD and in collaboration with Prof Robert Young of the University of Manchester, potentially offers exciting possibilities for applications in new, inexpensive devices and diagnostics in medicine and other sectors.

A Dec. 9, 2016 Trinity College Dublin press release (also on EurekAlert), which originated the news item, describes their ‘G-putty’ in more detail,

Prof Coleman, Investigator in AMBER and Trinity’s School of Physics along with postdoctoral researcher Conor Boland, discovered that the electrical resistance of putty infused with graphene (“G-putty”) was extremely sensitive to the slightest deformation or impact. They mounted the G-putty onto the chest and neck of human subjects and used it to measure breathing, pulse and even blood pressure. It showed unprecedented sensitivity as a sensor for strain and pressure, hundreds of times more sensitive than normal sensors. The G-putty also works as a very sensitive impact sensor, able to detect the footsteps of small spiders. It is believed that this material will find applications in a range of medical devices.

Prof Coleman said, “What we are excited about is the unexpected behaviour we found when we added graphene to the polymer, a cross-linked polysilicone. This material as well known as the children’s toy silly putty. It is different from familiar materials in that it flows like a viscous liquid when deformed slowly but bounces like an elastic solid when thrown against a surface. When we added the graphene to the silly putty, it caused it to conduct electricity, but in a very unusual way. The electrical resistance of the G-putty was very sensitive to deformation with the resistance increasing sharply on even the slightest strain or impact. Unusually, the resistance slowly returned close to its original value as the putty self-healed over time.”

He continued, “While a common application has been to add graphene to plastics in order to improve the electrical, mechanical, thermal or barrier properties, the resultant composites have generally performed as expected without any great surprises. The behaviour we found with G-putty has not been found in any other composite material. This unique discovery will open up major possibilities in sensor manufacturing worldwide.”

Dexter Johnson in a Dec. 14, 2016 posting on his Nanoclast blog (on the IEEE [Institute of Electrical and Electronics Engineers]) puts this research into context,

For all the talk and research that has gone into exploiting graphene’s pliant properties for use in wearable and flexible electronics, most of the polymer composites it has been mixed with to date have been on the hard and inflexible side.

It took a team of researchers in Ireland to combine graphene with the children’s toy Silly Putty to set the nanomaterial community ablaze with excitement. The combination makes a new composite that promises to make a super-sensitive strain sensor with potential medical diagnostic applications.

“Ablaze with excitement,” eh? As Dexter rarely slips into hyperbole, this must be a big deal.

The researchers have made this video available,

For the very interested, here’s a link to and a citation for the paper,

Sensitive electromechanical sensors using viscoelastic graphene-polymer nanocomposites by Conor S. Boland, Umar Khan, Gavin Ryan, Sebastian Barwich, Romina Charifou, Andrew Harvey, Claudia Backes, Zheling Li, Mauro S. Ferreira, Matthias E. Möbius, Robert J. Young, Jonathan N. Coleman. Science  09 Dec 2016: Vol. 354, Issue 6317, pp. 1257-1260 DOI: 10.1126/science.aag2879

This paper is behind a paywall.

Seawater batteries to replace lithium-ion batteries?

Replacing lithium-ion batteries with seawater batteries is a little more complicated than going out to scoop a little seawater and returning home to cook up a battery according to a Dec. 7, 2016 American Chemical Society news release (also on EurkeAlert),

With the ubiquity of lithium-ion batteries in smartphones and other rechargeable devices, it’s hard to imagine replacing them. But the rising price of lithium has spurred a search for alternatives. One up-and-coming battery technology uses abundant, readily available seawater. Now, making this option viable is one step closer with a new report on a sodium-air, seawater battery. The study appears in the journal ACS Applied Materials & Interfaces.

Sodium-air — or sodium-oxygen — batteries are considered one of the most promising, and cost-effective alternatives to today’s lithium-ion standby. But some challenges remain before they can become a commercial reality. Soo Min Hwang, Youngsik Kim and colleagues have been tackling these challenges, using seawater as the catholyte — an electrolyte and cathode combined. In batteries, the electrolyte is the component that allows an electrical charge to flow between the cathode and anode. A constant flow of seawater into and out of the battery provides the sodium ions and water responsible for producing a charge. The reactions have been sluggish, however, so the researchers wanted to find a way to speed them up.

For their new battery, the team prepared a catalyst using porous cobalt manganese oxide nanoparticles. The pores create a large surface area for encouraging the electrochemical reactions needed to produce a charge. A hard carbon electrode served as the anode. The resulting battery performed efficiently over 100 cycles with an average discharge voltage of about 2.7 volts. This doesn’t yet measure up to a lithium-ion cell, which can reach 3.6 to 4.0 volts, but the advance is getting close to bridging the gap, the researchers say.

Here’s a link to and a citation for the paper,

A Metal–Organic Framework Derived Porous Cobalt Manganese Oxide Bifunctional Electrocatalyst for Hybrid Na–Air/Seawater Batteries by Mari Abirami, Soo Min Hwang, Juchan Yang, Sirugaloor Thangavel Senthilkumar, Junsoo Kim, Woo-Seok Go, Baskar Senthilkumar, Hyun-Kon Song, and Youngsik Kim. ACS Appl. Mater. Interfaces, 2016, 8 (48), pp 32778–32787
DOI: 10.1021/acsami.6b10082 Publication Date (Web): November 14, 2016

Copyright © 2016 American Chemical Society

This paper is behind a paywall.

Kinetic properties of cement at the nanoscale

There was a Vancouver-born architect, Arthur Erickson, who adored concrete as a building material. In fact, he gained an international reputation for his ‘concrete’ work. I have never been a fan, especially after attending Simon Fraser University (one of Erickson’s early triumphs) in Vancouver (Canada) and experiencing the joy of deteriorating concrete structures.

This somewhat related news concerns cement, (from a Dec.7, 2016 news item on ScienceDaily,

Bringing order to disorder is key to making stronger and greener cement, the paste that binds concrete.

Scientists at Rice University have decoded the kinetic properties of cement and developed a way to “program” the microscopic, semicrystalline particles within. The process turns particles from disordered clumps into regimented cubes, spheres and other forms that combine to make the material less porous and more durable.

A Dec. 7, 2016 Rice University news release, which originated the news item, explains further (Note: Links have been removed),

The technique may lead to stronger structures that require less concrete – and less is better, said Rice materials scientist and lead author Rouzbeh Shahsavari. Worldwide production of more than 3 billion tons of concrete a year now emits as much as 10 percent of the carbon dioxide, a greenhouse gas, released to the atmosphere.

Through extensive experiments, Shahsavari and his colleagues decoded the nanoscale reactions — or “morphogenesis” — of the crystallization within calcium-silicate hydrate (C-S-H) cement that holds concrete together.

For the first time, they synthesized C-S-H particles in a variety of shapes, including cubes, rectangular prisms, dendrites, core-shells and rhombohedra and mapped them into a unified morphology diagram for manufacturers and builders who wish to engineer concrete from the bottom up.

“We call it programmable cement,” he said. “The great advance of this work is that it’s the first step in controlling the kinetics of cement to get desired shapes. We show how one can control the morphology and size of the basic building blocks of C-S-H so that they can self-assemble into microstructures with far greater packing density compared with conventional amorphous C-S-H microstructures.”

He said the idea is akin to the self-assembly of metallic crystals and polymers. “It’s a hot area, and researchers are taking advantage of it,” Shahsavari said. “But when it comes to cement and concrete, it is extremely difficult to control their bottom-up assembly. Our work provides the first recipe for such advanced synthesis.

“The seed particles form first, automatically, in our reactions, and then they dominate the process as the rest of the material forms around them,” he said. “That’s the beauty of it. It’s in situ, seed-mediated growth and does not require external addition of seed particles, as commonly done in the industry to promote crystallization and growth.”

Previous techniques to create ordered crystals in C-S-H required high temperatures or pressures, prolonged reaction times and the use of organic precursors, but none were efficient or environmentally benign, Shahsavari said.

The Rice lab created well-shaped cubes and rectangles by adding small amounts of positive or negative ionic surfactants and calcium silicate to C-S-H and exposing the mix to carbon dioxide and ultrasonic sound. The crystal seeds took shape around surfactant micelles within 25 minutes. Decreasing the calcium silicate yielded more spherical particles and smaller cubes, while increasing it formed clumped spheres and interlocking cubes.

Once the calcite “seeds” form, they trigger the molecules around them to self-assemble into cubes, spheres and other shapes that are orders of magnitude larger. These can pack more tightly together in concrete than amorphous particles, Shahsavari said. Carefully modulating the precursor concentration, temperature and duration of the reaction varies the yield, size and morphology of the final particles.

The discovery is an important step in concrete research, he said. It builds upon his work as part of the Massachusetts Institute of Technology team that decoded cement’s molecular “DNA” in 2009. “There is currently no control over C-S-H shape,” Shahsavari said. “The concrete used today is an amorphous colloid with significant porosity that entails reduced strength and durability.”

Concrete is one focus of Shahsavari’s Rice lab, which has studied both its macroscale manufacture and intrinsic nanoscale properties. Because concrete is the world’s most common construction material and a significant source of atmospheric carbon dioxide, he is convinced of the importance of developing “greener” concrete.

The new technique has several environmental benefits, Shahsavari said. “One is that you need less of it (the concrete) because it is stronger. This stems from better packing of the cubic particles, which leads to stronger microstructures. The other is that it will be more durable. Less porosity makes it harder for unwanted chemicals to find a path through the concrete, so it does a better job of protecting steel reinforcement inside.”

The research required the team to develop a method to test microscopic concrete particles for strength. The researchers used a diamond-tipped nanoindenter to crush single cement particles with a flat edge.

They programmed the indenter to move from one nanoparticle to the next and crush it and gathered mechanical data on hundreds of particles of various shapes in one run. “Other research groups have tested bulk cement and concrete, but no group had ever probed the mechanics of single C-S-H particles and the effect of shape on mechanics of individual particles,” Shahsavari said.

He said strategies developed during the project could have implications for other applications, including bone tissue engineering, drug delivery and refractory materials, and could impact such other complex systems as ceramics and colloids.

Here’s a link to and a citation for the paper,

Morphogenesis of Cement Hydrate by Sakineh E Moghaddam, vahid hejazi, Sung Hoon Hwang, Sreeprasad Srinavasan, Joseph B. Miller, Benhang Shi, Shuo Zhao, Irene Rusakova, Aali R. Alizadeh, Kenton Whitmire and Rouzbeh Shahsavari. J. Mater. Chem. A, 2016, DOI: 10.1039/C6TA09389B First published online 30 Nov 2016

I believe this paper is behind a paywall.

Changing synaptic connectivity with a memristor

The French have announced some research into memristive devices that mimic both short-term and long-term neural plasticity according to a Dec. 6, 2016 news item on Nanowerk,

Leti researchers have demonstrated that memristive devices are excellent candidates to emulate synaptic plasticity, the capability of synapses to enhance or diminish their connectivity between neurons, which is widely believed to be the cellular basis for learning and memory.

The breakthrough was presented today [Dec. 6, 2016] at IEDM [International Electron Devices Meeting] 2016 in San Francisco in the paper, “Experimental Demonstration of Short and Long Term Synaptic Plasticity Using OxRAM Multi k-bit Arrays for Reliable Detection in Highly Noisy Input Data”.

Neural systems such as the human brain exhibit various types and time periods of plasticity, e.g. synaptic modifications can last anywhere from seconds to days or months. However, prior research in utilizing synaptic plasticity using memristive devices relied primarily on simplified rules for plasticity and learning.

The project team, which includes researchers from Leti’s sister institute at CEA Tech, List, along with INSERM and Clinatec, proposed an architecture that implements both short- and long-term plasticity (STP and LTP) using RRAM devices.

A Dec. 6, 2016 Laboratoire d’électronique des technologies de l’information (LETI) press release, which originated the news item, elaborates,

“While implementing a learning rule for permanent modifications – LTP, based on spike-timing-dependent plasticity – we also incorporated the possibility of short-term modifications with STP, based on the Tsodyks/Markram model,” said Elisa Vianello, Leti non-volatile memories and cognitive computing specialist/research engineer. “We showed the benefits of utilizing both kinds of plasticity with visual pattern extraction and decoding of neural signals. LTP allows our artificial neural networks to learn patterns, and STP makes the learning process very robust against environmental noise.”

Resistive random-access memory (RRAM) devices coupled with a spike-coding scheme are key to implementing unsupervised learning with minimal hardware footprint and low power consumption. Embedding neuromorphic learning into low-power devices could enable design of autonomous systems, such as a brain-machine interface that makes decisions based on real-time, on-line processing of in-vivo recorded biological signals. Biological data are intrinsically highly noisy and the proposed combined LTP and STP learning rule is a powerful technique to improve the detection/recognition rate. This approach may enable the design of autonomous implantable devices for rehabilitation purposes

Leti, which has worked on RRAM to develop hardware neuromorphic architectures since 2010, is the coordinator of the H2020 [Horizon 2020] European project NeuRAM3. That project is working on fabricating a chip with architecture that supports state-of-the-art machine-learning algorithms and spike-based learning mechanisms.

That’s it folks.

Israeli cannabis-based nutraceutical to be sold in US

It seems the US company, Ananda Scientific [AS], is licensing a technology from Israeli company, Lyotropic Delivery Systems (LDS) Biotech, and they’ve [AS] contributed to developing  a new cannabinoid-based nutraceutical, which will be hitting US store shelves in the foreseeable future. Here’s more from a Dec. 5, 2016 article by

Sales based on Israeli startup Lyotropic Delivery Systems (LDS) Biotech‘s nanotechnology have started in the US. The commercial launch of its cannabis-derived compound, which aims to relieve inflammation and pain, was announced earlier this month by LDS and US based company Ananda Scientific at a marijuana business conference [Marijuana Business Conference & Expo] held in Las Vegas.

LDS’s new cannabis-based technology increases the amount of cannabidiol compound (CBD) absorbed into the bloodstream and is more effective than other available solutions, without a narcotic effect, the company said.

LDS and Ananda Scientific, a privately held Delaware corporation that produces and markets cannabis based products, entered into a licensing agreement in 2015. As part of the accord Ananda gained rights to LDS’s cannabinoid drug delivery nanotechnology for the development of cannabidiol (CBD)-based oral products. Ananda Scientific said it expects the sales of the new product to reach millions of dollars in the US alone within the first year.

The products will be sold over the counter in the US as they are marketed as a nutraceutical product — derived from food sources with extra health benefits — and not as a medication. They are based on a technology developed by Professor Nissim Garti from the Hebrew University of Jerusalem and licensed to LDS by Yissum, the technology transfer company of the Hebrew University.

CBD is a non-psychoactive antioxidant extracted from the cannabis plant that is rapidly gaining importance due to its numerous benefits to humans’ overall well-being. Unlike THC [tetrahydrocannabinol], which is the part of the cannabis leaf that makes you high, CBD is a nontoxic, anti-inflammatory substance that is very well tolerated by the body with few side effects, researchers say.

“We have developed nano-droplets that absorb on their interface only the CBD compound from the cannabis, and not the THC,” said Garti in a phone interview. “Unlike other CBD formulations that are available on the market and are dispersed in oil, our product is better and more quickly absorbed by the body. Our CBD formulation is also protected from being transformed, after it is ingested, into THC which is a risk factor in other existing products.”

The company said its nano-formulations can remain stable on shelves for long periods of time without release or decomposition of the bioactive material. The product is sold in a variety of liquid forms and can be dissolved into water or taken in drops under the tongue, Garti said.

Over-the-counter cannabis products are not yet permitted for sale in Israel.

Typically, when taken orally, the user does not generally benefit from the full effect of CBD: while in the gastrointestinal tract the compound transforms into THC, is destroyed during digestion, or fails to reach the bloodstream for other reasons. Thus, only a fraction of the ingested CBD yields any effect. In contrast, CBD coupled with LDS technology is not degraded in the gastrointestinal tract, and the nanotechnology enables swift absorption and greatly enhances the transport of CBD to the bloodstream and then to relevant sites in the body where it can take effect, Garti said.

For those interested in market sizes and other business details, I recommend reading Solomon’s article in its entirety.

You can find Lyotropic Delivery Systems (LDS) Biotech here and  Ananda Scientific here.

Maths gallery at the UK’s Science Museum takes flight

Mathematics: The Winton Gallery at the Science Museum, Zaha Hadid Architects’ only permanent public museum exhibition design. London. Photograph: Nicholas Guttridge/NIck Guttridge

This exhibition looks great in the picture, I wonder what the experience is like. Alex Bellos is certainly enthusiastic in his Dec. 7, 2016 posting on the Guardian’s website,

Mathematics underlies all science, so for a science museum to be worthy of the name, maths needs to included somewhere. Yet maths, which deals mainly in abstract objects, is [a] challenge for museums, which necessarily contain physical ones. The Science Museum’s approach in its new gallery is to tell historical stories about the influence of mathematics in the real world, rather than actually focussing directly on the mathematical ideas involved. The result is a stunning gallery, with fascinating objects beautifully laid out, yet which eschews explaining any maths. (If you want to learn simple mathematical ideas, you can always head to the museum’s new interactive gallery, Wonderlab).

Much of the attention on Mathematics: The Winton Gallery – the main funders are David Harding, founder and CEO of investment firm Winton, and his wife Claudia – has been on Zaha Hadid’s design. The gallery is the first UK project by Zaha Hadid Architects to open since her unexpected death in March [2016], and the only permanent public museum exhibition she designed. Her first degree was in maths, before she turned to architecture.

Hanging from the ceiling is an aeroplane – the Handley Page ‘Gugnunc’, built in 1929 for a competition to build safe aircraft – and surrounding it is a swirly ceiling sculpture that represents the mathematical equations that describe airflow. In fact, the entire gallery follows the contours of the flow, providing the positions of the cabinets below.

The Science Museum’s previous maths gallery, which had not been updated in decades, contained about 600 objects, including cabinets crammed with geometrical objects and many examples of the same thing, such as medieval slide rules or Victorian curve-drawing machines. The new gallery has less than a quarter of that number of objects in the same space.

Every object now is in its own cabinet, and the extra space means you can walk around them from all angles, as well as making the gallery feel more manageable. Rather than being bombarded with stuff, you are given a single object to contemplate that tells part of a wider story.

In a section on “form and beauty”, there is a modern replica of a 1920s chair based on French architect’s Le Corbusier’s Modulor system of proportions, and two J W Turner sketches from his Royal Academy lectures on perspective.

The section “trade and travel” has a 3-metre long replica of the 1973 Globtik Tokyo oil tanker, then the largest ship in the world. In its massive cabinet it looks as terrifying as a Damien Hirst shark. The maths link? Because British mathematician William Froode a century before had worked out that bulbous bows were better than sharp bows at the fronts of boats and ships.

The new maths gallery is a wonderfully attractive space, full of interesting and thought-provoking objects, and a very welcome addition [geddit?] to London’s museums. Go!

A Dec. 8 (?), 2016 [London, UK] Science Museum press release is the first example I’ve seen of the funders being highlighted quite so prominently, i.e., before the press release proper,

Mathematics: The Winton Gallery designed by Zaha Hadid Architects opens at the Science Museum

  • A stunning new permanent gallery that reveals the importance of mathematics in all our lives through remarkable historical artefacts, stories and design
  • Free to visit and open daily from 8 December 2016
  • The only permanent public museum exhibition designed by Zaha Hadid anywhere in the world

Principal Funder: David and Claudia Harding
Principal Sponsor: Samsung
Major Sponsor: MathWorks

On 8 December 2016 the Science Museum will open an inspirational new mathematics gallery, designed by Zaha Hadid Architects.

Mathematics: The Winton Gallery brings together remarkable stories, historical artefacts and design to highlight the central role of mathematical practice in all our lives, and explores how mathematicians, their tools and ideas have helped build the modern world over the past four centuries.

More than 100 treasures from the Science Museum’s world-class science, technology, engineering and mathematics collections have been selected to tell powerful stories about how mathematics has shaped, and been shaped by, some of our most fundamental human concerns – from trade and travel to war, peace, life, death, form and beauty.

Curator Dr David Rooney said, ‘At its heart this gallery reveals a rich cultural story of human endeavour that has helped transform the world over the last four hundred years. Mathematical practice underpins so many aspects of our lives and work, and we hope that bringing together these remarkable stories, people and exhibits will inspire visitors to think about the role of mathematics in a new light.’

Positioned at the centre of the gallery is the Handley Page ‘Gugnunc’ aeroplane, built in 1929 for a competition to construct safe aircraft. Ground-breaking aerodynamic research influenced the wing design of this experimental aeroplane, helping to shift public opinion about the safety of flying and to secure the future of the aviation industry. This aeroplane encapsulates the gallery’s overarching theme, illustrating how mathematical practice has helped solve real-world problems and in this instance paved the way for the safe passenger flights that we rely on today.

Mathematics also defines Zaha Hadid Architects’ enlightening design for the gallery. Inspired by the Handley Page aircraft, the design is driven by equations of airflow used in the aviation industry. The layout and lines of the gallery represent the air that would have flowed around this historic aircraft in flight, from the positioning of the showcases and benches to the three-dimensional curved surfaces of the central pod structure.

Mathematics: The Winton Gallery is the first permanent public museum exhibition designed by Zaha Hadid Architects anywhere in the world. The gallery is also the first of Zaha Hadid Architects’ projects to open in the UK since Dame Zaha Hadid’s sudden death in March 2016. The late Dame Zaha first became interested in geometry while studying mathematics at university. Mathematics and geometry have a strong connection with architecture and she continued to examine these relationships throughout each of her projects; with mathematics always central to her work. As Dame Zaha said, ‘When I was growing up in Iraq, math was an everyday part of life. We would play with math problems just as we would play with pens and paper to draw – math was like sketching.’

Ian Blatchford, Director of the Science Museum Group, said, ‘We were hugely impressed by the ideas and vision of the late Dame Zaha Hadid and Patrik Schumacher when they first presented their design for the new mathematics gallery over two years ago. It was a terrible shock for us all when Dame Zaha died suddenly in March this year, but I am sure that this gallery will be a lasting tribute to this world-changing architect and provide inspiration for our millions of visitors for many years to come.’

From a beautiful 17th century Islamic astrolabe that uses ancient mathematical techniques to map the night sky, to an early example of the famous Enigma machine, designed to resist even the most advanced mathematical techniques for code breaking during the Second World War, each historic object within the gallery has an important story to tell. Archive photography and film helps to capture these stories, and introduces the wide range of people who made, used or were impacted by each mathematical device or idea.

Some instruments and objects within the gallery clearly reference their mathematical origin. Others may surprise visitors and appear rooted in other disciplines, from classical architecture to furniture design. Visitors will see a box of glass eyes used by Francis Galton in his 1884 Anthropometric Laboratory to help measure the physical characteristics of the British public and develop statistics to support a wider social and political movement he termed ‘eugenics’. On the other side of the gallery is the pioneering Wisard pattern-recognition machine built in 1981 to attempt to re-create the ‘neural networks’ of the brain. This early Artificial Intelligence machine worked, until 1995, on a variety of projects, from banknote recognition to voice analysis, and from foetal growth monitoring in hospitals to covert surveillance for the Home Office.

A richly illustrated book has been published by Scala to accompany the new gallery. Mathematics: How it Shaped Our World, written by David Rooney, expands on the themes and stories that are celebrated in the gallery itself and includes a series of newly commissioned essays written by world-leading experts in the history and modern practice of mathematics.

David Harding, Principal Funder of the gallery and Founder and CEO of Winton said, ‘Mathematics, whilst difficult for many, is incredibly useful. To those with an aptitude for it, it is also beautiful. I’m delighted that this gallery will be both useful and beautiful.’

Mathematics: The Winton Gallery is free to visit and open daily from 8 December 2016. The gallery has been made possible through an unprecedented donation from long-standing supporters of science, David and Claudia Harding. It has also received generous support from Samsung as Principal Sponsor, MathWorks as Major Sponsor, with additional support from Adrian and Jacqui Beecroft, Iain and Jane Bratchie, the Keniston-Cooper Charitable Trust, Dr Martin Schoernig, Steve Mobbs and Pauline Thomas.

After the press release, there is the most extensive list of ‘Abouts’ I’ve seen yet (Note: This includes links to the Science Museum and other agencies),

About the Science Museum
The Science Museum’s world-class collection forms an enduring record of scientific, technological and medical achievements from across the globe. Welcoming over 3 million visitors a year, the Museum aims to make sense of the science that shapes our lives, inspiring visitors with iconic objects, award-winning exhibitions and incredible stories of scientific achievement. More information can be found at

About Curator David Rooney
Mathematics: The Winton Gallery has been curated by Dr David Rooney, who was responsible for the award-winning 2012 Science Museum exhibition Codebreaker: Alan Turing’s Life and Legacy as well as developing galleries on time and navigation at the National Maritime Museum, Greenwich. David writes and speaks widely on the history of technology and engineering. His critically acclaimed first book, Ruth Belville: The Greenwich Time Lady, was described by Jonathan Meades as ‘an engrossing and eccentric slice of London history’, and by the Daily Telegraph as ‘a gem of a book’. He has recently authored Mathematics: How It Shaped Our World, to accompany the new mathematics gallery, and is currently writing a political history of traffic.

About David and Claudia Harding
David and Claudia Harding are associated with Winton, one of the world’s leading quantitative investment management firms which David founded in 1997. Winton uses mathematical and scientific methods to devise, evaluate and execute investment ideas on behalf of clients all over the world. A British-based company, Winton and David and Claudia Harding have donated to numerous scientific and mathematical causes in the UK and internationally, including Cambridge University, the Crick Institute, the Max Planck Institute, and the Science Museum. The main themes of their philanthropy have been supporting basic scientific research and the communication of scientific ideas. David and Claudia reside in London.

About Samsung’s Citizenship Programmes
Samsung is committed to help close the digital divide and skills gap in the UK. Samsung Digital Classrooms in schools, charities/non-profit organisations and cultural partners provide access to the latest technology. Samsung is also providing the training and maintenance support necessary to help make the transition and integration of the new technology as smooth as possible. Samsung also offers qualifications and training in technology for young people and teachers through its Digital Academies. These initiatives will inspire young people, staff and teachers to learn and teach in new exciting ways and to help encourage young people into careers using technology. Find out more

About MathWorks
MathWorks is the leading developer of mathematical computing software. MATLAB, the language of technical computing, is a programming environment for algorithm development, data analysis, visualisation, and numeric computation. Simulink is a graphical environment for simulation and Model-Based Design for multidomain dynamic and embedded systems. Engineers and scientists worldwide rely on these product families to accelerate the pace of discovery, innovation, and development in automotive, aerospace, electronics, financial services, biotech-pharmaceutical, and other industries. MATLAB and Simulink are also fundamental teaching and research tools in the world’s universities and learning institutions. Founded in 1984, MathWorks employs more than 3000 people in 15 countries, with headquarters in Natick, Massachusetts, USA. For additional information, visit

About Zaha Hadid Architects
Zaha Hadid founded Zaha Hadid Architects (ZHA) in 1979. Each of ZHA’s projects builds on over thirty years of exploration and research in the interrelated fields of urbanism, architecture and design. Hadid’s pioneering vision redefined architecture for the 21st century and captured imaginations across the globe. Her legacy is embedded within the DNA of the design studio she created as ZHA’s projects combine the unwavering belief in the power of invention with concepts of connectivity and fluidity.

ZHA is currently working on a diversity of projects worldwide including the new Beijing Airport Terminal Building in Daxing, China, the Sleuk Rith Institute in Phnom Penh, Cambodia and 520 West 28th Street in New York City, USA. The practice’s portfolio includes cultural, academic, sporting, residential, and transportation projects across six continents.

About Discover South Kensington
Discover South Kensington brings together the Science Museum and other leading cultural and educational organisations to promote innovation and learning. South Kensington is the home of science, arts and inspiration. Discovery is at the core of what happens here and there is so much to explore every day.

About Zaha Hadid: Early Paintings and Drawings at the Serpentine Sackler Gallery
This week an exhibition of paintings and drawings by Zaha Hadid will open at the Serpentine Galleries that will reveal her as an artist with drawing at the very heart of her work. It will include calligraphic drawings and rarely seen private notebooks, showing her complex thoughts about architecture’s forms and relationship to the world we live in. Zaha Hadid: Early Paintings and Drawings at the Serpentine Sackler Gallery is free to visit and runs from 8th December 2016 – 12th February 2017.

I found the mentions of Zaha Hadid fascinating and so I looked her up on Wikipedia, where I found this (Note: Links have been removed),

Dame Zaha Mohammad Hadid, DBE (Arabic: زها حديد‎‎ Zahā Ḥadīd; 31 October 1950 – 31 March 2016) was an Iraqi-born British architect. She was the first woman to receive the Pritzker Architecture Prize, in 2004.[1] She received the UK’s most prestigious architectural award, the Stirling Prize, in 2010 and 2011. In 2012, she was made a Dame by Elizabeth II for services to architecture, and in 2015 she became the first woman to be awarded the Royal Gold Medal from the Royal Institute of British Architects.[2]

She was dubbed by The Guardian as the ‘Queen of the curve’.[3] She liberated architectural geometry[4] with the creation of highly expressive, sweeping fluid forms of multiple perspective points and fragmented geometry that evoke the chaos and flux of modern life.[5] A pioneer of parametricism, and an icon of neo-futurism, with a formidable personality, her acclaimed work and ground-breaking forms include the aquatic centre for the London 2012 Olympics, the Broad Art Museum in the US, and the Guangzhou Opera House in China.[6] At the time of her death in 2016, Zaha Hadid Architects in London was the fastest growing British architectural firm.[7] Many of her designs are to be released posthumously, ranging in variation from the 2017 Brit Awards statuette to a 2022 FIFA World Cup stadium.[8][9]

Dubbed ‘Queen of the curve’, Hadid has a reputation as the world’s top female architect,[3][62][63][64][65] although her reputation is not without criticism. She is considered an architect of unconventional thinking, whose buildings are organic, dynamic and sculptural.[66][67] Stanton and others also compliment her on her unique organic designs: “One of the main characteristics of her work is that however clearly recognizable, it can never be pigeonholed into a stylistic signature. Digital knowledge, technology-driven mutations, shapes inspired by the organic and biological world, as well as geometrical interpretation of the landscape are constant elements of her practice. Yet, the multiplicity and variety of the combination among these facets prevent the risk of self-referential solutions and repetitions.”[68] Allison Lee Palmer considers Hadid a leader of Deconstructivism in architecture, writing that, “Almost all of Hadid’s buildings appear to melt, bend, and curve into a new architectural language that defies description. Her completed buildings span the globe and include the Jockey Club Innovation Tower on the north side of the Hong Kong Polytechnic University in Hong Kong, completed in 2013, that provides Hong Kong an entry into the world stage of cutting-edge architecture by revealing a design that dissolved traditional architecture, the so called modernist “glass box,” into a shattering of windows and melting of walls to form organic structures with halls and stairways that flow through the building, pooling open into rooms and foyers.”[69]

Hadid’s architectural language has been described by some as “famously extravagant” with many of her projects sponsored by “dictator states”. [emphasis mine] [70] Rowan Moore described Hadid’s Heydar Aliyev Center as “not so different from the colossal cultural palaces long beloved of Soviet and similar regimes”. Architect Sean Griffiths characterised Hadid’s work as “an empty vessel that sucks in whatever ideology might be in proximity to it”.[71] Art historian Maike Aden criticises in particular the foreclosure of Zaha Hadid’s architecture of the MAXXI in Rome towards the public and the urban life that undermines even the most impressive program to open the museum.[72]

If you think about it, most of the world’s great monuments were built by dictators or omnipotent rulers of one country or another. Getting the money and commitment can present an ethical/moral issue for any artist or architect who has a ‘grand design’.

Water that freezes solid at over 100 degrees Celsius

The ‘magical property’ of water that freezes at temperatures higher than 100 degrees Celsius occurs at the nanoscale according to this Nov. 28, 2016 news item on Nanowerk,

It’s a well-known fact that water, at sea level, starts to boil at a temperature of 212 degrees Fahrenheit, or 100 degrees Celsius. And scientists have long observed that when water is confined in very small spaces, its boiling and freezing points can change a bit, usually dropping by around 10 C or so.

But now, a team at MIT [Massachusetts Institute of Technology] has found a completely unexpected set of changes: Inside the tiniest of spaces — in carbon nanotubes whose inner dimensions are not much bigger than a few water molecules — water can freeze solid even at high temperatures that would normally set it boiling.

A Nov. 28, 2016 MIT news release (also on EurekAlert), which originated the news item, expands on the theme,

The discovery illustrates how even very familiar materials can drastically change their behavior when trapped inside structures measured in nanometers, or billionths of a meter. And the finding might lead to new applications — such as, essentially, ice-filled wires — that take advantage of the unique electrical and thermal properties of ice while remaining stable at room temperature.

“If you confine a fluid to a nanocavity, you can actually distort its phase behavior,” Strano says, referring to how and when the substance changes between solid, liquid, and gas phases. Such effects were expected, but the enormous magnitude of the change, and its direction (raising rather than lowering the freezing point), were a complete surprise: In one of the team’s tests, the water solidified at a temperature of 105 C or more. (The exact temperature is hard to determine, but 105 C was considered the minimum value in this test; the actual temperature could have been as high as 151 C.)

“The effect is much greater than anyone had anticipated,” Strano says.

It turns out that the way water’s behavior changes inside the tiny carbon nanotubes — structures the shape of a soda straw, made entirely of carbon atoms but only a few nanometers in diameter — depends crucially on the exact diameter of the tubes. “These are really the smallest pipes you could think of,” Strano says. In the experiments, the nanotubes were left open at both ends, with reservoirs of water at each opening.

Even the difference between nanotubes 1.05 nanometers and 1.06 nanometers across made a difference of tens of degrees in the apparent freezing point, the researchers found. Such extreme differences were completely unexpected. “All bets are off when you get really small,” Strano says. “It’s really an unexplored space.”

In earlier efforts to understand how water and other fluids would behave when confined to such small spaces, “there were some simulations that showed really contradictory results,” he says. Part of the reason for that is many teams weren’t able to measure the exact sizes of their carbon nanotubes so precisely, not realizing that such small differences could produce such different outcomes.

In fact, it’s surprising that water even enters into these tiny tubes in the first place, Strano says: Carbon nanotubes are thought to be hydrophobic, or water-repelling, so water molecules should have a hard time getting inside. The fact that they do gain entry remains a bit of a mystery, he says.

Strano and his team used highly sensitive imaging systems, using a technique called vibrational spectroscopy, that could track the movement of water inside the nanotubes, thus making its behavior subject to detailed measurement for the first time.

The team can detect not only the presence of water in the tube, but also its phase, he says: “We can tell if it’s vapor or liquid, and we can tell if it’s in a stiff phase.” While the water definitely goes into a solid phase, the team avoids calling it “ice” because that term implies a certain kind of crystalline structure, which they haven’t yet been able to show conclusively exists in these confined spaces. “It’s not necessarily ice, but it’s an ice-like phase,” Strano says.

Because this solid water doesn’t melt until well above the normal boiling point of water, it should remain perfectly stable indefinitely under room-temperature conditions. That makes it potentially a useful material for a variety of possible applications, he says. For example, it should be possible to make “ice wires” that would be among the best carriers known for protons, because water conducts protons at least 10 times more readily than typical conductive materials. “This gives us very stable water wires, at room temperature,” he says.

Here’s a link to and a citation for the paper,

Observation of extreme phase transition temperatures of water confined inside isolated carbon nanotubes by Kumar Varoon Agrawal, Steven Shimizu, Lee W. Drahushuk, Daniel Kilcoyne, & Michael S. Strano. Nature Nanotechnology (2016)  doi:10.1038/nnano.2016.254 Published online 28 November 2016

This paper is behind a paywall.

Soft contact lenses key to supercapacitor breaththrough

It seems like pretty exciting news for anyone following the supercapacitor story but they are being awfully cagey about it all in a Dec. 6, 2016 news item on Nanowerk,

Ground-breaking research from the University of Surrey and Augmented Optics Ltd., in collaboration with the University of Bristol, has developed potentially transformational technology which could revolutionise the capabilities of appliances that have previously relied on battery power to work.

This development by Augmented Optics Ltd., could translate into very high energy density super-capacitors making it possible to recharge your mobile phone, laptop or other mobile devices in just a few seconds.

The technology could have a seismic impact across a number of industries, including transport, aerospace, energy generation, and household applications such as mobile phones, flat screen electronic devices, and biosensors. It could also revolutionise electric cars, allowing the possibility for them to recharge as quickly as it takes for a regular non-electric car to refuel with petrol – a process that currently takes approximately 6-8 hours to recharge. Imagine, instead of an electric car being limited to a drive from London to Brighton, the new technology could allow the electric car to travel from London to Edinburgh without the need to recharge, but when it did recharge for this operation to take just a few minutes to perform.

I imagine the reason for the caginess has to do with the efforts to commercialize the technology. In any event, here’s a little more from a Dec. 5, 2016 University of Surrey press release by Ashley Lovell,

Supercapacitor buses are already being used in China, but they have a very limited range whereas this technology could allow them to travel a lot further between recharges. Instead of recharging every 2-3 stops this technology could mean they only need to recharge every 20-30 stops and that will only take a few seconds.

Elon Musk, of Tesla and SpaceX, has previously stated his belief that supercapacitors are likely to be the technology for future electric air transportation. We believe that the present scientific advance could make that vision a reality.

The technology was adapted from the principles used to make soft contact lenses, which Dr Donald Highgate (of Augmented Optics, and an alumnus of the University of Surrey) developed following his postgraduate studies at Surrey 40 years ago. Supercapacitors, an alternative power source to batteries, store energy using electrodes and electrolytes and both charge and deliver energy quickly, unlike conventional batteries which do so in a much slower, more sustained way. Supercapacitors have the ability to charge and discharge rapidly over very large numbers of cycles. However, because of their poor energy density per kilogramme (approximately just one twentieth of existing battery technology), they have, until now, been unable to compete with conventional battery energy storage in many applications.

Dr Brendan Howlin of the University of Surrey, explained: “There is a global search for new energy storage technology and this new ultra capacity supercapacitor has the potential to open the door to unimaginably exciting developments.”

The ground-breaking research programme was conducted by researchers at the University of Surrey’s Department of Chemistry where the project was initiated by Dr Donald Highgate of Augmented Optics Ltd. The research team was co-led by the Principal Investigators Dr Ian Hamerton and Dr Brendan Howlin. Dr Hamerton continues to collaborate on the project in his new post at the University of Bristol, where the electrochemical testing to trial the research findings was carried out by fellow University of Bristol academic – David Fermin, Professor of Electrochemistry in the School of Chemistry.

Dr Ian Hamerton, Reader in Polymers and Composite Materials from the Department of Aerospace Engineering, University of Bristol said: “While this research has potentially opened the route to very high density supercapacitors, these *polymers have many other possible uses in which tough, flexible conducting materials are desirable, including bioelectronics, sensors, wearable electronics, and advanced optics. We believe that this is an extremely exciting and potentially game changing development.”

*the materials are based on large organic molecules composed of many repeated sub-units and bonded together to form a 3-dimensional network.

Jim Heathcote, Chief Executive of both Augmented Optics Ltd and Supercapacitor Materials Ltd, said: “It is a privilege to work with the teams from the University of Surrey and the University of Bristol. The test results from the new polymers suggest that extremely high energy density supercapacitors could be constructed in the very new future. We are now actively seeking commercial partners [emphasis mine] in order to supply our polymers and offer assistance to build these ultra high energy density storage devices.”

I was not able to find a website for Augmented Optics but there is one for SuperCapacitor Materials here.

Luxury watches exploit nanocomposite materials

Who knew Dominic Purcell (actor: Prison Break, Legends of Tomorrow, etc.) is England-born and raised in Australia? You find the oddest nuggets of information when tracking down details about nanoscience and nanotechnology. In this case, it was a Nov. 29, 2016 news item about luxury watches and a nanocomposite which eventually led me to Purcell,

Founded by Swiss-born Sydneysider Christophe Hoppe, Bausele Australia bills itself as the first “Swiss-made, Australian-designed” watch company.

The name is an acronym for Beyond Australian Elements. Each watch has part of the Australian landscape embedded in its crown, or manual winding mechanism, such as red earth from the outback, beach sand or bits of opal.

But what makes the luxury watches unique is an innovative material called Bauselite developed in partnership with Flinders University’s Centre of NanoScale Science and Technology in Adelaide. An advanced ceramic nanotechnology, Bauselite is featured in Bausele’s Terra Australis watch, enabling design elements not found in its competitors.

A Nov. 10, 2016article by Myles Gough for Australia Unlimited provides more details,

NanoConnect program fosters industry partnership
Flinders University coordinates NanoConnect, a collaborative research program supported by the South Australian Government, which provides a low-risk pathway for companies to access university equipment and expertise.

It was through this program that Hoppe met nanotechnologist Professor David Lewis, and his colleagues Dr Jonathan Campbell and Dr Andrew Block.

“There were a lot of high IQs around that table, except for me,” jokes Hoppe about their first meeting.

After some preliminary discussions, the Flinders team set about researching the luxury watch industry and identified several areas for innovation. The one they focused on with Hoppe was around the manufacture of casings.

Apart from the face, the case is the most prominent feature on a watch head: it needs to be visually appealing but also lightweight and strong, says Hoppe, who is also Bausele’s chief designer.

The researchers suggested ceramics might be suitable. Conventional ceramics require casting, where a powder slurry is injected into a mould and heated in an oven. The process is suitable for high-volume manufacturing, but the end product is often hampered by small imperfections or deformities. This can cause components to break, resulting in wasted material, time and money. It can also make the material incompatible with complex designs, such as those featured in the Terra Australis.

New material offers ‘competitive edge’

Using a new technique, the Flinders team invented a unique, lightweight ceramic-like material that can be produced in small batches via a non-casting process, which helps eliminate defects found in conventional ceramics. They named the high-performance material Bauselite.

“Bauselite is strong, very light and, because of the way it is made, avoids many of the traps common with conventional ceramics,” explains Professor Lewis.

The new material allows holes to be drilled more precisely, which is an important feature in watchmaking. “It means we can make bolder, more adventurous designs, which can give us a competitive advantage,” Hoppe says.

Bauselite can also be tailored to meet specific colour, shape and texture requirements. “This is a major selling point,” Hoppe says. “Watch cases usually have a shiny, stainless steel-like finish, but the Bauselite looks like a dark textured rock.”

Advanced manufacturing hub in Australia

Hoppe and the Flinders University team are currently working on the development of new materials and features.

Together they have established a joint venture company called Australian Advanced Manufacturing to manufacture bauselite.  A range of other precision watch components could be in the pipeline.

The team hopes to become a ‘centre of excellence’ for watchmaking in Australia, supplying components to international luxury watchmaking brands.

But the priority is for the advanced manufacturing hub to begin making Bausele watches onshore: “I’ve seen what Europe is good at when it comes to creating luxury goods, and what makes it really special is when people control the whole process from beginning to end,” says Hoppe. “This is what we want to do. We’ll start with one component now, but we’ll begin to manufacture others.”

Hoppe hopes the hub will be a place where students can develop similar, high-performance materials, which could find applications across a range of industries, from aerospace to medicine for bone and joint reconstructions.

Here’s Purcell (I’m pretty sure the watch he’s modeling does not feature the nanocomposite),

Courtesy: Bausele [downloaded]

Courtesy: Bausele [downloaded]

For the curious, here’s an image featuring the nanocomposite casing,

Christophe Hoppe with his new Bauselite watch casing. (Image: Flinders University/Bausele) Read more: Nanotechnology and luxury watches: an innovative partnership

Christophe Hoppe with his new Bauselite watch casing. (Image: Flinders University/Bausele)
Read more: Nanotechnology and luxury watches: an innovative partnership

As for the nanotechnology-enabled watch itself,

Terra Australis Courtesy: Bausele

Terra Australis Courtesy: Bausele

If you’re looking for a Christmas or Hanukkah or Kwanzaa gift  and don’t mind being a bit late, here’s the Bausele website.