Tag Archives: Canada

Canadian researchers harvest energy from chewing

Who knew that jaw movements have proved to be amongst the most promising activities for energy-harvesting? Apparently, scientists know and are coming up with ways to enjoy the harvest. From a Sept. 16, 2014 news item on Nanowerk,

A chin strap that can harvest energy from jaw movements has been created by a group of researchers in Canada.

It is hoped that the device can generate electricity from eating, chewing and talking, and power a number of small-scale implantable or wearable electronic devices, such as hearing aids, cochlear implants, electronic hearing protectors and communication devices.

An Institute of Physics (IOP) Sept. 16, 2014 news release (also on EurekAlert), which  generated the news item, explains just why jaw movements are so exciting and how the researchers went about ‘harvesting’,

Jaw movements have proved to be one of the most promising candidates for generating electricity from human body movements, with researchers estimating that an average of around 7 mW of power could be generated from chewing during meals alone.

To harvest this energy, the study’s researchers, from Sonomax-ÉTS Industrial Research Chair in In-ear Technologies (CRITIAS) at École de technologie supérieure (ÉTS) in Montreal, Canada, created a chinstrap made from piezoelectric fibre composites (PFC).

PFC is a type of piezoelectric smart material that consists of integrated electrodes and an adhesive polymer matrix. The material is able to produce an electric charge when it stretches and is subjected to mechanical stress.

In their study, the researchers created an energy-harvesting chinstrap made from a single layer of PFC and attached it to a pair of earmuffs using a pair of elastic side straps. To ensure maximum performance, the chinstrap was fitted snugly to the user, so when the user’s jaw moved it caused the strap to stretch.

To test the performance of the device, the subject was asked to chew gum for 60 seconds while wearing the device; at the same time the researchers recorded a number of different parameters.

The maximum amount of power that could be harvested from the jaw movements was around 18 µW, but taking into account the optimum set-up for the head-mounted device, the power output was around 10 µW.

Co-author of the study Aidin Delnavaz said: “Given that the average power available from chewing is around 7 mW, we still have a long way to go before we perfect the performance of the device.

“The power level we achieved is hardly sufficient for powering electrical devices at the moment; however, we can multiply the power output by adding more PFC layers to the chinstrap. For example, 20 PFC layers, with a total thickness of 6 mm, would be able to power a 200 µW intelligent hearing protector.”

One additional motivation for pursuing this area of research is the desire to curb the current dependency on batteries, which are not only expensive to replace but also extremely damaging to the environment if they are not disposed of properly.

“The only expensive part of the energy-harvesting device is the single PFC layer, which costs around $20. Considering the price and short lifetime of batteries, we estimate that a self-powered hearing protector based on the proposed chinstrap energy-harvesting device will start to pay back the investment after three years of use,” continued Delnavaz.

“Additionally, the device could substantially decrease the environmental impact of batteries and bring more comfort to users.

“We will now look at ways to increase the number of piezoelectric elements in the chinstrap to supply the power that small electronic devices demand, and also develop an appropriate power management circuit so that a tiny, rechargeable battery can be integrated into the device.”

Here’s a look at the ‘smart chinstrap’,

Caption: This is the experimental set up of an energy harvesting chin strap. Credit: Smart Materials and Structures/IOP Publishing

Caption: This is the experimental set up of an energy harvesting chin strap.
Credit: Smart Materials and Structures/IOP Publishing

I don’t see anyone rushing to get a chinstrap soon. Hopefully they’ll find a way to address some of the design issues. In the meantime, here’s a link to and a citation for the paper,

Flexible piezoelectric energy harvesting from jaw movements by Aidin Delnavaz and Jérémie Voix. 2014 Smart Mater. Struct. 23 105020 doi:10.1088/0964-1726/23/10/105020

This is an open access paper.

An alliance of nano researchers: Ingenuity Lab and University of Alberta (Canada) professors

This news release from Alberta’s Ingenuity Lab came in this morning (Sept. 16, 2014),

Researchers Form Nano Bond

Ingenuity Sparks Strategic Partnership with UAlberta Professors

September 16, 2014 Edmonton, Alberta – If two heads are better than one, three heads will no doubt be revolutionary. That is what University of Alberta professors Carlo Montemagno,Thomas Thundat and Gane Wong are aiming for.

“The path to discovery lies beyond conventional thinking and the siloed approaches that have hampered our progress thus far,” says Ingenuity Lab Director, Carlo Montemagno, PhD. “By acknowledging the interconnectedness of our systems and facilitating better research integration and the cross pollination of ideas, we give ourselves, and society as a whole, a much better chance of success.”

Whether it is in the oil patch or in the operating room, these heavy hitters will be merging their expertise and research together in the areas of single cell genomics research in breast and prostate cancer and novel physical, chemical and biological detection using micro- and nano- mechanical sensors.

“The purpose of an accelerator is to bring the right people together at the right time,” explains Thundat. “In doing so, we leverage unique knowledge and expertise and significantly boost our ability to develop tangible solutions to the world’s most complex challenges.”

The 10-year provincially funded initiative was launched in November 2013 and is attracting the best and brightest minds from around the world. With a research agenda focused on the province’s most pressing environmental, industrial and health challenges, Ingenuity Lab is a partnership with the University of Alberta and Alberta Innovates Technology Futures and is expected to reach over $100M in funds leveraged from industry partners over the next decade.

“Our hope is that this partnership will help reduce the existing gap between research and development, and end user application,” says Wong. “For example, we have a unique opportunity to engineer and equip industries with next generation tools and resources that will far surpass those currently available.”

The dynamic partnership promises to facilitate deeper learning, critical thinking and enhance networking opportunities. It will also contribute to our province’s competitive advantage by maximising the utility of local resources and channelling existing expertise towards shared goals.

“We are fortunate to have such a dynamic team of influential leaders in our midst,” says Dr. Lorne Babiuk, Vice President of Research at the University of Alberta. “These outstanding individuals have made remarkable progress in their fields and continue to champion leading-edge research, teaching, and learning across our campus and beyond.”

At the risk of adding a slightly sour note, it seems they have high hopes but there’s no detail about what makes this collaboration more newsworthy than any other. That said, I wish them a very fruitful collaboration.

Canada’s Situating Science in Fall 2014

Canada’s Situating Science cluster (network of humanities and social science researchers focused on the study of science) has a number of projects mentioned and in its Fall 2014 newsletter,

1. Breaking News
It’s been yet another exciting spring and summer with new developments for the Situating Science SSHRC Strategic Knowledge Cluster team and HPS/STS [History of Philosophy of Science/Science and Technology Studies] research. And we’ve got even more good news coming down the pipeline soon…. For now, here’s the latest.

1.1. New 3 yr. Cosmopolitanism Partnership with India and Southeast Asia
We are excited to announce that the Situating Science project has helped to launch a new 3 yr. 200,000$ SSHRC Partnership Development Grant on ‘Cosmopolitanism and the Local in Science and Nature’ with institutions and scholars in Canada, India and Singapore. Built upon relations that the Cluster has helped establish over the past few years, the project will closely examine the actual types of negotiations that go into the making of science and its culture within an increasingly globalized landscape. A recent workshop on Globalizing History and Philosophy of Science at the Asia Research Institute at the National University of Singapore helped to mark the soft launch of the project (see more in this newsletter).

ARI along with Manipal University, Jawaharlal Nehru University, University of King’s College, Dalhousie University, York University, University of Toronto, and University of Alberta, form the partnership from which the team will seek new connections and longer term collaborations. The project’s website will feature a research database, bibliography, syllabi, and event information for the project’s workshops, lecture series, summer schools, and artifact work. When possible, photos, blogs, podcasts and videos from events will be posted online as well. The project will have its own mailing list so be sure to subscribe to that too. Check it all out: www.CosmoLocal.org

2.1. Globalizing History and Philosophy of Science workshop in Singapore August 21-22 2014
On August 21 and 22, scholars from across the globe gathered at the Asia Research Institute at the National University of Singapore to explore key issues in global histories and philosophies of the sciences. The setting next to the iconic Singapore Botanical Gardens provided a welcome atmosphere to examine how and why globalizing the humanities and social studies of science generates intellectual and conceptual tensions that require us to revisit, and possibly rethink, the leading notions that have hitherto informed the history, philosophy and sociology of science.

The keynote by Sanjay Subrahmanyam (UCLA) helped to situate discussions within a larger issue of paradigms of civilization. Workshop papers explored commensurability, translation, models of knowledge exchange, indigenous epistemologies, commercial geography, translation of math and astronomy, transmission and exchange, race, and data. Organizer Arun Bala and participants will seek out possibilities for publishing the proceedings. The event partnered with La Trobe University and Situating Science, and it helped to launch a new 3 yr. Cosmopolitanism project. For more information visit: www.CosmoLocal.org

2.2. Happy Campers: The Summer School Experience

We couldn’t help but feel like we were little kids going to summer camp while our big yellow school bus kicked up dust driving down a dirt road on a hot summer’s day. In this case it would have been a geeky science camp. We were about to dive right into day-long discussions of key pieces from Science and Technology Studies and History and Philosophy of Science and Technology.

Over four and a half days at one of the Queen’s University Biology Stations at the picturesque Elbow Lake Environmental Education Centre, 18 students from across Canada explored the four themes of the Cluster. Each day targeted a Cluster theme, which was introduced by organizer Sergio Sismondo (Sociology and Philosophy, Queen’s). Daryn Lehoux (Classics, Queen’s) explained key concepts in Historical Epistemology and Ontology. Using references of the anti-magnetic properties of garlic (or garlic’s antipathy with the loadstone) from the ancient period, Lehoux discussed the importance and significance of situating the meaning of a thing within specific epistemological contexts. Kelly Bronson (STS, St. Thomas University) explored modes of science communication and the development of the Public Engagement with Science and Technology model from the deficit model of Public Understanding of Science and Technology during sessions on Science Communication and its Publics. Nicole Nelson (University of Wisconsin-Madison) explained Material Culture and Scientific/Technological Practices by dissecting the meaning of animal bodies and other objects as scientific artifacts. Gordon McOuat wrapped up the last day by examining the nuances of the circulation and translation of knowledge and ‘trading zones’ during discussions of Geographies and Sites of Knowledge.

2.3. Doing Science in and on the Oceans
From June 14 to June 17, U. King’s College hosted an international workshop on the place and practice of oceanography in celebration of the work of Dr. Eric Mills, Dalhousie Professor Emeritus in Oceanography and co-creator of the History of Science and Technology program. Leading ocean scientists, historians and museum professionals came from the States, Europe and across Canada for “Place and Practice: Doing Science in and on the Ocean 1800-2012”. The event successfully connected different generations of scholars, explored methodologies of material culture analysis and incorporated them into mainstream historical work. There were presentations and discussions of 12 papers, an interdisciplinary panel discussion with keynote lecture by Dr. Mills, and a presentation at the Maritime Museum of the Atlantic by Canada Science and Technology Museum curator, David Pantalony. Paper topics ranged from exploring the evolving methodology of oceanographic practice to discussing ways that the boundaries of traditional scientific writing have been transcended. The event was partially organized and supported by the Atlantic Node and primary support was awarded by the SSHRC Connection Grant.

2.4. Evidence Dead or Alive: The Lives of Evidence National Lecture Series

The 2014 national lecture series on The Lives of Evidence wrapped up on a high note with an interdisciplinary panel discussion of Dr. Stathis Psillos’ exploration of the “Death of Evidence” controversy and the underlying philosophy of scientific evidence. The Canada Research Chair in Philosophy of Science spoke at the University of Toronto with panelists from law, philosophy and HPS. “Evidence: Wanted Dead of Alive” followed on the heels of his talk at the Institute for Science, Society and Policy “From the ‘Bankruptcy of Science’ to the ‘Death of Evidence’: Science and its Value”.

In 6 parts, The Lives of Evidence series examined the cultural, ethical, political, and scientific role of evidence in our world. The series formed as response to the recent warnings about the “Death of Evidence” and “War on Science” to explore what was meant by “evidence”, how it is interpreted, represented and communicated, how trust is created in research, what the relationship is between research, funding and policy and between evidence, explanations and expertise. It attracted collaborations from such groups as Evidence for Democracy, the University of Toronto Evidence Working Group, Canadian Centre for Ethics in Public Affairs, Dalhousie University Health Law Institute, Rotman Institute of Philosophy and many more.

A December [2013] symposium, “Hype in Science”, marked the soft launch of the series. In the all-day public event in Halifax, leading scientists, publishers and historians and philosophers of science discussed several case studies of how science is misrepresented and over-hyped in top science journals. Organized by the recent winner of the Gerhard Herzberg Canada Gold Medal for Science and Engineering, Ford Doolittle, the interdisciplinary talks in “Hype” explored issues of trustworthiness in science publications, scientific authority, science communication, and the place of research in the broader public.

The series then continued to explore issues from the creation of the HIV-Crystal Meth connection (Cindy Patton, SFU), Psychiatric Research Abuse (Carl Elliott, U. Minnesota), Evidence, Accountability and the Future of Canadian Science (Scott Findlay, Evidence for Democracy), Patents and Commercialized Medicine (Jim Brown, UofT), and Clinical Trials (Joel Lexchin, York).

All 6 parts are available to view on the Situating Science YouTube channel.You can read a few blogs from the events on our website too. Some of those involved are currently discussing possibilities of following up on some of the series’ issues.

2.5. Other Past Activities and Events
The Frankfurt School: The Critique of Capitalist Culture (July, UBC)

De l’exclusion à l’innovation théorique: le cas de l’éconophysique ; Prosocial attitudes and patterns of academic entrepreneurship (April, UQAM)

Critical Itineraries Technoscience Salon – Ontologies (April, UofT)

Technologies of Trauma: Assessing Wounds and Joining Bones in Late Imperial China (April, UBC)

For more, check out: www.SituSci.ca

You can find some of the upcoming talks and the complete Fall 2014 Situating Science newsletter here.

About one week after receiving the newsletter, I got this notice (Sept. 11, 2014),

We are ecstatic to announce that the Situating Science SSHRC Strategic Knowledge Cluster is shortlisted for a highly competitive SSHRC Partnership Impact Award!

And what an impact we’ve had over the past seven years: Organizing and supporting over 20 conferences and workshops, 4 national lecture series, 6 summer schools, and dozens of other events. Facilitating the development of 4 new programs of study at partner institutions. Leveraging more than one million dollars from Nodal partner universities plus more than one million dollars from over 200 supporting and partnering organizations. Hiring over 30 students and 9 postdoctoral fellows. Over 60 videos and podcasts as well as dozens of student blogs and over 50 publications. Launching a new Partnership Development Grant between Canada, India and Southeast Asia. Developing a national consortium…And more!

The winners will be presented with their awards at a ceremony in Ottawa on Monday, November 3, 2014.

From the Sept. 11, 2014 Situating Science press release:

University of King’s College [Nova Scotia, Canada] professor Dr. Gordon McOuat has been named one of three finalists for the Social Sciences and Humanities Research Council of Canada’s (SSHRC) Partnership Award, one of five Impact Awards annually awarded by SSHRC.

Congratulations on the nomination and I wish Gordon McQuat and Situating Science good luck in the competition.

Canadian nano business news: international subsidiary (Nanex) opens in Québec and NanoStruck’s latest results on recovering silver from mine tailings

The Canadian nano business sector is showing some signs of life. Following on my Sept. 3, 2014 posting about Nanotech Security Corp.’s plans to buy a subsidiary business, Fortress Optical Features, there’s an international subsidiary of Nanex (a Belgium-based business) planning to open in the province of Québec and NanoStruck (an Ontario-based company) has announced the results of its latest tests on cyanide-free recovery techniques.

In the order in which I stumbled across these items, I’m starting with the Nanex news item in a Sept. 3, 2014 posting on the Techvibes blog,

Nanex, a Belgian-based innovator and manufacturer of superhydrophobic nanotechnology products, announced last week the creation of its first international subsidiary.

Nanex Canada will be headquartered in Montreal.

For those unfamiliar with the term superhydrophobic, it means water repellent to a ‘super’ degree. For more information the properties of superhydrophobic coatings, the Techvibes post is hosting a video which demonstrates the coating’s properties (there’s a car which may never need washing again).

An Aug. 1, 2014 Nanex press release, which originated the news item, provides more details,

… Nanex Canada Incorporated will be starting operations on October 1st, 2014 and will be headquartered in Montreal, Quebec.

“Nanex’s expansion into Canada is a tremendous leap forward in our international operations, creating not only more efficient and direct channels into all of North America, but also providing access to a new top-notch intellectual pool for our R&D efforts,” Said Boyd Soussana, National Marketing Director at Nanex Canada. “We feel that Quebec and Canada have a great reputation as leaders in the field of advanced technologies, and we are proud to contribute to this scientific landscape.”

Upon launch, Nanex Canada Inc. will begin with retail and sales of its nanotechnology products, which have a wide range of consumer applications. Formal partnerships in B2B [business-to-business] further expanding these applications have been in place throughout Canada beginning in August of 2014. Through its Quebec laboratories Nanex Canada Inc. will also be pursuing R&D initiatives, in order to further develop safe and effective nano-polymers for consumer use, focusing entirely on ease of application and cost efficiency for the end consumer. In addition application of nano-coatings in green technologies will be a priority for North American R&D efforts.

Nanex Company currently manufactures three lines of products: Always Dry, Clean & Coat, and a self-cleaning coating for automotive bodies. These products contain proprietary nano-polymers that when sprayed upon a surface provide advanced abilities including super hydrophobic (extremely water-repellent), oleophobic (extremely oil repellent), and scratch resistance as well as self-cleaning properties.

 

The second piece of news is featured in a Sept. 5, 2014 news item on Azonano,

NanoStruck Technologies Inc. is pleased to announce positive results from test work carried out on silver mine tailings utilizing proprietary cyanide free recovery technologies that returned up to 87.6% of silver from samples grading 56 grams of silver per metric ton (g/t).

A Sept. 4, 2014 NanoStruck news release, which originated the news item, provides more details,

Three leach tests were conducted using the proprietary mixed acid leach process. Roasting was conducted on the sample for two of the leach tests, producing higher recoveries, although the un-roasted sample still produced a 71% recovery rate.

87.6% silver recoveries resulted from a 4 hour leach time at 95 degrees Celsius, with the standard feed grind size of D80 175 micron of roasted material.
84.3% recoveries resulted from a 4 hour leach at 95 degrees Celsius with the standard feed grind size of D80 175 micron with roasted material at a lower acid concentration.
71% recoveries resulted from a 4 hour leach at 95 degrees Celsius from received material, with the standard feed grind size of D80 175 micron with an altered acid mix concentration.

The average recovery for the roasted samples was 86% across the two leach tests performed using the proprietary process.

Bundeep Singh Rangar, Interim CEO and Chairman of the Board, said: “These results further underpin the effectiveness of our processing technology. With our patented process we are achieving excellent recoveries in not only silver tailings, but also gold tailings as well, both of which have vast global markets for us.”

The proprietary process combines a novel mixed acid leach with a solvent extraction stage, utilizing specific organic compounds. No cyanide is used in this environmentally friendly process. The flow sheet design is for a closed loop, sealed unit in which all chemicals are then recycled.

Previous test work undertaken on other gold mine tailings utilizing the proprietary process resulted in a maximum 96.1% recovery of gold. Previous test work undertaken on other silver tailings resulted in a maximum 86.4% recovery of silver.

The technical information contained in this news release has been verified and approved by Ernie Burga, a qualified person for the purpose of National Instrument 43-101, Standards of Disclosure for Mineral Projects, of the Canadian securities administrators.

Should you choose to read the news release in its entirety, you will find that no one is responsible for the information should anything turn out to be incorrect or just plain wrong but, like Nanotech Security Corp., (as I noted in my Sept. 4, 2014 posting), the company is very hopeful.

I have mentioned NanoStruck several times here:

March 14, 2014 posting

Feb. 19, 2014 posting

Feb. 10, 2014 posting

Dec. 27, 2013 posting

2014 Canadian Science Policy Conference—super saver early bird registration ends Sept. 9*, 2014

The 2014 Canadian Science Policy Conference (CSPC 2014) is being held from Oct. 15 – 17, 2014 in Halifax, Nova Scotia, and is offering 40% off from the regular rates until Sept. 8, 2014 (from the CSPC 2014 registration rate webpage),

Super Saver; 40% discount, Regular Delegate – $510 (Register before Sept 8th)
Super Saver, 40% discount, Academic/NGO – $270 (Register before Sept 8th)
Super Saver, 40% discount, Student – $75 (Register before Sept 8th)

Early Bird Regular Delegate – $725 (on or before Sept 28th)
Early Bird Academic/NGO – $350 (on or before Sept 28th)
Early Bird Student – $100 (on or before Sept 28th)

Regular Delegate Rate – $850 (after Sept 28th)
Regular Academic/NGO – $450 (after Sept 28th)
Regular Student – $150 (after Sept 28th)

This will be the sixth annual CSPC and it features this agenda (from the Agenda at a Glance webpage), Note: Links have been removed,

Wednesday, October 15th, 2014
Time     Activity
3:00pm – 8:00pm     CSPC 2014 Special Workshop     From Research to Implementation: A Lean Entrepreneurship Approach to Advancing Innovation

Thursday, October 16th, 2014
Time     Activity
8:00am – 8:30am     Opening Ceremony

8:30am – 10:00am     Plenary Session     The Inside Story of Procurement and Industrial Technological Benefits (ITB) and Value Propositions

10:00am – 10:30am     Coffee Break

10:30am – 12:00pm

Panel 2     Big problems, big networks, big data
Panel 3     Mitigating the risk of marine geohazards
Panel 4     Building opportunities for collaboration between government and academia to inform public policy

12:00pm- 2:00pm     Lunch

2:00pm – 3:30pm

Panel 5     Partnership that move innovation from Campus to Commerce
Panel 6     The crucial role of small and medium size universities for advancing Canadian social and econ development
Panel 7     Industry-Academic Partnerships in Canada: A View from the Trenches

3:30pm – 4:30pm     Break & Exhibit Display

4:30pm – 6:30pm     Keynote session     Audit on Science Panel

Friday, October 17th, 2014
Time     Activity
8:30am – 10:00am     Panel 8     TBA

10:00am – 10:30am     Coffee Break

10:30am – 12:00pm

Panel 9     Looking to 2020 and beyond: Training the next generation of innovation leaders in Canada
Panel 10     From Excellence to Impact: How Large Infrastructure Stimulate Growth
Panel 11     Communication and Collaboration: Government Science as a Partner for Innovation

12:00pm – 1:30pm     Lunch

1:30pm – 3:00pm

Panel 12     Data management plans- Policy and Practice
Panel 13     Complex International Science, Technology and Innovation Partnerships: Lessons for Canada
Panel 14     Entrepreneurship and Innovation Success in Atlantic

3:00pm – 3:30pm     Coffee Break

3:30pm – 5:00pm     Closing Panel

Oddly, for this gathering, there don’t seem to be any politicians scheduled to speak. Perhaps the organizers are still negotiating; I notice there are some gaps in the agenda.

I have some suggestions: someone or several someones from the expert panel that just (late August 2014) launched its report on ‘Science Culture in Canada’ along with the new CEO of the Canada Science and Technology Museums Corp. (Alex Benay) and maybe one or two people who could generate some excitement (e.g. Justin Trudeau, Tom Jenkins).

By the way, I’m available.

* Sept. 8 changed to Sept. 9, 2014 as per a CSPC update notice (change made Sept. 5, 2014).

Canadian company, Nanotech Security Corp. hopes to purchase Fortress Optical Features

Nanotech Security Corp. started life as a spin-off company from Simon Fraser University in Vancouver, Canada. A  Jan. 17, 2011 posting and a followup Sept. 29, 2011 posting will probably give you more information about the technology and the company’s beginnings than you every thought you’d want.

For those interested in the company’s current expectations, an Aug. 27, 2014 news item on Nanotechnology Now describes Nanotech Security Corp.’s plan to purchase another business (also Canadian with the parent company [which is not being purchased] headquartered in North Vancouver},

Nanotech Security Corp. (TSXV:NTS) (OTCQX:NTSFF) (“Nanotech” or “the Company”) today announces an agreement with Fortress Global Securities Sarl, a subsidiary of TSX listed Fortress Paper Ltd. (“Fortress Paper”), to purchase 100% of Fortress Optical Features Ltd. (“Fortress Optical Features”), a producer of optical thin film (“OTF”) used as security threads in banknotes in several countries. The definitive share and loan purchase agreement (the “Purchase Agreement”) provides for Nanotech to acquire 100% of the issued and outstanding securities of Fortress Optical Features for consideration of up to $17.5 million, of which 3 million Nanotech shares (up to $4.5 million) is contingent on the future operating performance of Fortress Optical Features. Nanotech has also entered into an agreement with Canaccord Genuity Corp. (“Canaccord Genuity”) to act as sole lead manager and book-runner, and including Craig-Hallum Capital Group, in respect of a private placement of subscription receipts of the Company convertible into Nanotech common shares (“Shares”) and Share purchase warrants (“Warrants”) in a targeted range of $9.0 million to $16.0 million as more fully described below. To date, subscription agreements in excess of $8.0 million have been received which is an amount sufficient to pay the cash portion of the acquisition under the Purchase Agreement. All monetary amounts are in Canadian dollars.

An Aug. 26, 2014 Nanotech Security Corp. news release, which originated the news item, provides additional details,

The acquisition of Fortress Optical Features will serve as a platform to accelerate commercialization of Nanotech’s KolourOptik technology by integrating it into Fortress Optical Features’ product line as an addition of KolourOptik images to the OTF threads.

Nanotech will acquire Fortress Optical Features’ state-of-the-art building and vacuum metal deposition equipment, located near Ottawa.

The transaction combines complementary businesses that can leverage established banknote customer relationships to accelerate market entry and leapfrog competitive technologies. To date, Fortress Optical Features’ technology has been utilized by 11 international currencies.

Fortress Optical Features’ CEO Igi LeRoux, and COO, Ron Ridley, will be integrated into the Company’s senior management.

Fortress has the right to appoint one director to the Nanotech board and Nanotech will appoint a director to a Fortress affiliate concerned with security paper production.
Cash portion of the purchase price to be funded by a subscription receipts offering at $1.50, each convertible into a Share and one-half Warrant as fully described below.
Concurrent financing and acquisition closings are scheduled for September 10, 2014.

“We believe this will be a transformational transaction for Nanotech”, stated Doug Blakeway, President and CEO of Nanotech. “By layering our KolourOptik nanotechnology onto Fortress Optical Features’ security threads which are currently used in numerous currencies, we will create a next-generation product for the banknote industry”.

Mr. Blakeway added, “Additionally, the transaction will expand Nanotech’s current IP portfolio for optical security features to include Fortress Optical Features’ 14 current patent applications which should enhance our ability to compete in other commercial spaces such as passports as well as product branding and authentication”.

Fortress Optical Features’ core business is optical thin film material used in security threads incorporated in banknotes in several countries. Originally developed by the Bank of Canada, and subsequently sold to Fortress Optical Features in 2011, this technology was deployed on Canadian banknotes from 1989 until 2011 as well as ten other international currencies. In the twelve month period ending December 31, 2013 Fortress Optical Features generated approximately $2.3 million in revenue and its existing plant could service production of about eight times the level of production which generated this revenue.

Fortress Optical Features recently invested $4.2 million to renovate its existing production facility and added $1.0 million in new equipment over the past few years. As part of the transaction, Nanotech will acquire Fortress Optical Features’ state-of-the-art production facility and high technology OTF production equipment. Fortress Optical Features is currently pursuing business in some of the world’s largest countries and sees potential new opportunities internationally. According to Secura Monde International, the top five banknote producing economies include China, India, the European Union, the United States and Indonesia.

TRANSACTION DETAILS AND CLOSING CONDITIONS

Under the terms of the Purchase Agreement, Nanotech will pay up to $17.5 million to be satisfied by a combination of $7 million cash, 5 million common shares of Nanotech and a secured vendor take-back note of $3 million with an interest rate of 4% per annum. Of this consideration 2 million shares will have a four month hold period from closing and 3 million shares will be escrowed and shall be released based on certain specific performance milestones based on sales of product to new customers over up to 5 years. Shares may be released early in the event of a sale of the business or change of control of Nanotech. Contingent shares not released after 5 years will be cancelled. Details of the share release formula will be found in the Purchase Agreement to be filed at www.sedar.com.

All Shares have a deemed value of $1.50 and the acquisition and financing transactions do not constitute a change of business nor a change of control for Nanotech but will be treated under TSX Venture Exchange policies as a fundamental acquisition.

Completion of the transaction will be subject to customary closing conditions, including receipt of all regulatory approvals of the TSXV as well as the listing of the common shares issuable in connection with the transaction, including those underlying the subscription receipts. If Nanotech elects to terminate the acquisition in reliance on an allowable condition, a $600,000 break fee payable in Shares is due to Fortress Paper. Nanotech and Fortress Optical Features anticipate the transaction and financing will close on or about September 10, 2014.

RELATED AGREEMENT DETAILS

As part of Nanotech’s acquisition of Fortress Optical Features, the parties and/or their affiliates have entered into certain ancillary agreements. These include a supply agreement under which Fortress Optical Features will continue to supply OTF security threads to Fortress Paper’s Swiss-based Landqart specialty paper division. Landqart will enjoy favoured customer status subject to certain minimum purchase obligations. Under a lease and related shared services agreement, a Fortress Paper affiliate will lease approximately 2/3 of the 100,000 sq ft building being acquired as part of Fortress Optical Features assets and the parties will share the costs of steam production, electrical power, security, and administration services. The $3 million note is fully secured against Fortress Optical Features shares and assets.

SUBSCRIPTION RECEIPT OFFERING

Nanotech has entered into an agreement with Canaccord Genuity, acting as sole lead manager and sole bookrunner, and including Craig-Hallum Capital Group, to sell on a best-efforts marketed private placement basis, up to approximately 10,667,000 subscription receipts of the Company (the “Subscription Receipts”) at a price of $1.50 per Subscription Receipt (the “Subscription Price”), for gross proceeds to Nanotech of up to $16.0 million.

The Subscription Receipts will automatically convert, without additional payment, into one common share and one-half of a common share purchase warrant of the Company for each Subscription Receipt upon completion of the transaction. Subject to certain conditions, each whole purchase warrant will entitle the holder to purchase one common share of Nanotech at a price of $1.90 for a period of one year from issuance. The warrants are subject to accelerated expiry in the event that the common shares of Nanotech trade on the TSX Venture Exchange at $2.25 or more for a ten consecutive day period after the four month resale restricted period applicable to the Shares in Canada expires. Completion of the Subscription Receipt offering is subject to certain conditions, including receipt of the approval of the TSXV and all other necessary regulatory approvals.

Net proceeds from the Subscription Receipt offering will be used by the Company to partially fund the purchase price payable for Fortress Optical Features and for general corporate purposes.

The Subscription Price represents a discount of approximately 6% to the closing price of $1.60 per common share of Nanotech on the TSXV on August 25, 2014 and a discount of approximately 7% over the 30-trading day volume-weighted average price of $ 1.61 per common share of Nanotech on the TSXV, up to and including August 25, 2014.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

####

About Nanotech Security Corp.

Nanotech has been a leading innovator in the design and commercialization of advanced security products using nano-optical devices. Nanotech’s KolourOptik™ and Plasmogram™ optically variable devices (“OVD”s) are nanotechnology based product platforms originally inspired by the unique optical properties of the iridescent wings of the Blue Morpho butterfly. Nanotech OVD images produce intense, high definition images that are ideal for brand authentication and for distinguishing currency, documents, personal identification, consumer electronics, etc. from fakes. Nanotech’s KolourOptik OVD platform creates unique, easy to authenticate images through interaction of light with nano-sized (billionth of a meter) arrays of surface indentation structures imbedded through algorithms and electron beams into various substrates. These nanostructures create vivid colour images, activated by a simple tilt or rotation, and achieve higher resolutions than the best LED-displays currently available, as well as having optical properties not achievable with holograms.

Additional information about Nanotech and its technologies can be found on its website www.nanosecurity.ca or the Canadian disclosure filings website www.sedar.com or the OTCMarkets disclosure filings website www.otcmarkets.com

ABOUT FORTRESS OPTICAL FEATURES

Fortress Optical Features produces optically variable thin film security material for the security threads contained in certain previous Canadian banknotes and various other international currency denominations. The film is a unique combination of layered or ‘stacked’ thin film materials to produce a predictable colour replay. Additional features of the film include differing optical features or colors which appear when the banknote is tilted. The material was developed by the Bank of Canada in coordination with the National Research Council of Canada in the early 1980s and was first used as a patch on Bank of Canada $20, $50, $100 and $1,000 denominations of Birds of Canada series issued from 1988-1993 and also used on all Canadian Journey denominations issued from 2004 –2011. Fortress Optical Features’ high security products are marketed to security paper manufacturers throughout the world.

Additional information about Fortress Optical Features and its technologies can be found on its website www.fortresspaper.com/company/optical-security-features

This News Release contains forward-looking statements about the proposed acquisition by Nanotech of all of the issued and outstanding securities of Fortress Optical Features and the related offering of Subscription Receipts. Forward-looking statements are frequently, but not always, identified by words such as “expects”, “anticipates”, “believes”, “intends”, “estimates”, “predicts”, “potential”, “targeted” “plans”, “possible” and similar expressions, or statements that events, conditions or results “will”, “may”, “could” or “should” occur or be achieved.

These forward-looking statements include, without limitation, statements about our market opportunities, strategies, competition, and the Company’s views that its nano-optical technology will continue to show promise for mass production and commercial application. The principal risks related to these forward-looking statements are that the Company’s intellectual property claims will not prove sufficiently broad or enforceable to provide the necessary commercial protection and to attract the necessary capital and/or that the Company’s products will not be able to displace entrenched hologram, metalized strip tagging, and other conventional anti-counterfeiting technologies sufficiently to allow for profitability.

There can be no assurance that the transaction will occur or that the anticipated strategic benefits and operational synergies will be realized. The transaction is subject to the successful closing of the Subscription Receipt offering and to various regulatory approvals, including approvals by the TSXV, and the fulfilment of certain conditions, and there can be no assurance that any such approvals will be obtained and/or any such conditions will be met. The transaction and the Subscription Receipt offering could be modified, restructured or terminated.

Readers are cautioned not to place undue reliance on these forward-looking statements, which reflect Nanotech’s expectations only as of the date of this News Release. Nanotech disclaims any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

This News Release is not an offer to sell or the solicitation of an offer to buy any securities in the United States or in any jurisdiction in which such offer, solicitation or sale would be unlawful. The securities described in this News Release have not been and will not be registered under the United States Securities Act of 1933, as amended, or any state securities laws and may not be offered or sold within the United States absent registration or an applicable exemption from the registration requirements of such laws.

This News Release is not an offer to sell or the solicitation of an offer to buy any securities in the United States or in any jurisdiction in which such offer, solicitation or sale would be unlawful. The securities described in this News Release have not been and will not be registered under the United States Securities Act of 1933, as amended, or any state securities laws and may not be offered or sold within the United States absent registration or an applicable exemption from the registration requirements of such laws.

So there you have it. No one is responsible for anything but they hope for the best.

Nanoscale light confinement without metal (photonic circuits) at the University of Alberta (Canada)

To be more accurate, this is a step forward towards photonic circuits according to an Aug. 20, 2014 news item on Azonano,

The invention of fibre optics revolutionized the way we share information, allowing us to transmit data at volumes and speeds we’d only previously dreamed of. Now, electrical engineering researchers at the University of Alberta are breaking another barrier, designing nano-optical cables small enough to replace the copper wiring on computer chips.

This could result in radical increases in computing speeds and reduced energy use by electronic devices.

“We’re already transmitting data from continent to continent using fibre optics, but the killer application is using this inside chips for interconnects—that is the Holy Grail,” says Zubin Jacob, an electrical engineering professor leading the research. “What we’ve done is come up with a fundamentally new way of confining light to the nano scale.”

At present, the diameter of fibre optic cables is limited to about one thousandth of a millimetre. Cables designed by graduate student Saman Jahani and Jacob are 10 times smaller—small enough to replace copper wiring still used on computer chips. (To put that into perspective, a dime is about one millimetre thick.)

An Aug. 19, 2014 University of Alberta news release by Richard Cairney (also on EurekAlert), which originated the news item, provides more technical detail and information about funding,

 Jahani and Jacob have used metamaterials to redefine the textbook phenomenon of total internal reflection, discovered 400 years ago by German scientist Johannes Kepler while working on telescopes.

Researchers around the world have been stymied in their efforts to develop effective fibre optics at smaller sizes. One popular solution has been reflective metallic claddings that keep light waves inside the cables. But the biggest hurdle is increased temperatures: metal causes problems after a certain point.

“If you use metal, a lot of light gets converted to heat. That has been the major stumbling block. Light gets converted to heat and the information literally burns up—it’s lost.”

Jacob and Jahani have designed a new, non-metallic metamaterial that enables them to “compress” and contain light waves in the smaller cables without creating heat, slowing the signal or losing data. …

The team’s research is funded by the Natural Sciences and Engineering Research Council of Canada and the Helmholtz-Alberta Initiative.

Jacob and Jahani are now building the metamaterials on a silicon chip to outperform current light confining strategies used in industry.

Given that this work is being performed at the nanoscale and these scientists are located within the Canadian university which houses Canada’s National Institute of Nanotechnology (NINT), the absence of any mention of the NINT comes as a surprise (more about this organization after the link to the researchers’ paper).

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

Transparent subdiffraction optics: nanoscale light confinement without metal by Saman Jahani and Zubin Jacob. Optica, Vol. 1, Issue 2, pp. 96-100 (2014) http://dx.doi.org/10.1364/OPTICA.1.000096

This paper is open access.

In a search for the NINT’s website I found this summary at the University of Alberta’s NINT webpage,

The National Institute for Nanotechnology (NINT) was established in 2001 and is operated as a partnership between the National Research Council and the University of Alberta. Many NINT researchers are affiliated with both the National Research Council and University of Alberta.

NINT is a unique, integrated, multidisciplinary institute involving researchers from fields such as physics, chemistry, engineering, biology, informatics, pharmacy, and medicine. The main focus of the research being done at NINT is the integration of nano-scale devices and materials into complex nanosystems that can be put to practical use. Nanotechnology is a relatively new field of research, so people at NINT are working to discover “design rules” for nanotechnology and to develop platforms for building nanosystems and materials that can be constructed and programmed for a particular application. NINT aims to increase knowledge and support innovation in the area of nanotechnology, as well as to create work that will have long-term relevance and value for Alberta and Canada.

The University of Alberta’s NINT webpage also offers a link to the NINT’s latest rebranded website, The failure to mention the NINT gets more curious when looking at a description of NINT’s programmes one of which is hybrid nanoelectronics (Note: A link has been removed),

Hybrid NanoElectronics provide revolutionary electronic functions that may be utilized by industry through creating circuits that operate using mechanisms unique to the nanoscale. This may include functions that are not possible with conventional circuitry to provide smaller, faster and more energy-efficient components, and extend the development of electronics beyond the end of the roadmap.

After looking at a list of the researchers affiliated with the NINT, it’s apparent that neither Jahani or Jacob are part of that team. Perhaps they have preferred to work independently of the NINT ,which is one of the Canada National Research Council’s institutes.

Life-on-a-chip; protein synthesis could be possible with artificial cells

An Aug. 18, 2014 Weizmann Institute of Science (Israel) news release (also on EurekAlert but dated Aug. 19, 2014) describes an artificial cell system and its ability to synthesize protein,

Imitation, they say, is the sincerest form of flattery, but mimicking the intricate networks and dynamic interactions that are inherent to living cells is difficult to achieve outside the cell. Now, as published in Science, Weizmann Institute scientists have created an artificial, network-like cell system that is capable of reproducing the dynamic behavior of protein synthesis. This achievement is not only likely to help gain a deeper understanding of basic biological processes, but it may, in the future, pave the way toward controlling the synthesis of both naturally-occurring and synthetic proteins for a host of uses.

The system, designed by PhD students Eyal Karzbrun and Alexandra Tayar in the lab of Prof. Roy Bar-Ziv of the Weizmann Institute’s Materials and Interfaces Department, in collaboration with Prof. Vincent Noireaux of the University of Minnesota, comprises multiple compartments “etched” onto a biochip. These compartments – artificial cells, each a mere millionth of a meter in depth – are connected via thin capillary tubes, creating a network that allows the diffusion of biological substances throughout the system. Within each compartment, the researchers insert a cell genome – strands of DNA designed and controlled by the scientists themselves. In order to translate the genes into proteins, the scientists relinquished control to the bacterium E. coli: Filling the compartments with E. coli cell extract – a solution containing the entire bacterial protein-translating machinery, minus its DNA code – the scientists were able to sit back and observe the protein synthesis dynamics that emerged.

By coding two regulatory genes into the sequence, the scientists created a protein synthesis rate that was periodic, spontaneously switching from periods of being “on” to “off.” The amount of time each period lasted was determined by the geometry of the compartments. Such periodic behavior – a primitive version of cell cycle events – emerged in the system because the synthesized proteins could diffuse out of the compartment through the capillaries, mimicking natural protein turnover behavior in living cells. At the same time fresh nutrients were continuously replenished, diffusing into the compartment and enabling the protein synthesis reaction to continue indefinitely. “The artificial cell system, in which we can control the genetic content and protein dilution times, allows us to study the relation between gene network design and the emerging protein dynamics. This is quite difficult to do in a living system,” says Karzbrun. “The two-gene pattern we designed is a simple example of a cell network, but after proving the concept, we can now move forward to more complicated gene networks. One goal is to eventually design DNA content similar to a real genome that can be placed in the compartments. ”

The scientists then asked whether the artificial cells actually communicate and interact with one another like real cells. Indeed, they found that the synthesized proteins that diffused through the array of interconnected compartments were able to regulate genes and produce new proteins in compartments farther along the network. In fact, this system resembles the initial stages of morphogenesis – the biological process that governs the emergence of the body plan in embryonic development. “We observed that when we place a gene in a compartment at the edge of the array, it creates a diminishing protein concentration gradient; other compartments within the array can sense and respond to this gradient – similar to how morphogen concentration gradients diffuse through the cells and tissues of an embryo during early development. We are now working to expand the system and to introduce gene networks that will mimic pattern formation, such as the striped patterns that appear during fly embryogenesis,” explains Tayar.

With the artificial cell system, according to Bar-Ziv, one can, in principle, encode anything: “Genes are like Lego in which you can mix and match various components to produce different outcomes; you can take a regulatory element from E. coli that naturally controls gene X, and produce a known protein; or you can take the same regulatory element but connect it to gene Y instead to get different functions that do not naturally occur in nature. ” This research may, in the future, help advance the synthesis of such things as fuel, pharmaceuticals, chemicals and the production of enzymes for industrial use, to name a few.

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

Programmable on-chip DNA compartments as artificial cells by Eyal Karzbrun, Alexandra M. Tayar, Vincent Noireaux,and Roy H. Bar-Ziv. Science 15 August 2014: Vol. 345 no. 6198 pp. 829-832 DOI: 10.1126/science.1255550

This paper is behind a paywall.

While trying to find more information about the work on artificial cells and the Weizmann Institute, I discovered a Canadian chapter of what is, in addition to being a scientific research institute in Israel, a worldwide organization. Here’s more from the Weizmann Institute Canada About us webpage,

Weizmann Canada is part of a worldwide network of supporting organizations for the Weizmann Institute of Science, in Rehovot, Israel.

The Weizmann Institute is one of the world’s leading multidisciplinary research institutions. Hundreds of scientists, laboratory technicians and research students embark on fascinating journeys into the unknown. Every day, these researchers attempt to push the limits of scientific knowledge, exploring the Earth’s mysteries and making the world a better place.

Since 1964, Canadian supporters have helped fund some of the world’s most talented scientists who are conducting cutting-edge research, which has a major impact on the world we live in.

Behind every scientist, there is a donor who has made it possible for them to carry out their groundbreaking research.

With over 1200 research projects, there are over 1200 ways in which you can support the Weizmann Institute.

As I noted earlier today in an Aug. 19, 2014 posting about 14nm computer chips and limits to computation, the question about limits can be applied to other areas of endeavour including the creation of artificial cell systems.

Science and the arts: a science rap promotes civil discussion about science and religion; a science movie and a play; and a chemistry article about authenticating a Lawren Harris painting

Canadian-born rapper of science and many other topics, Baba Brinkman sent me an update about his current doings (first mentioned in an Aug. 1, 2014 posting featuring his appearances at the 2014 Edinburgh Fringe Festival, his Rap Guide to Religion being debuted at the Fringe, and his Kickstarter campaign to raise money for the creation of an animated rap album of his news Rap Guide to Religion), Note: Links have been removed,

Greetings from Edinburgh! In the past two and half weeks I’ve done fifteen performances of The Rap Guide to Religion for a steadily building audience here at the Fringe, and we recently had a whole pile of awesome reviews published, which I will excerpt below, but first a funny story.

Yesterday [August 14, 2014] BBC [British Broadcasting Corporation] Sunday Morning TV was in to film my performance. They had a scheme to send a right wing conservative Christian to the show and then film us having an argument afterwards. The man they sent certainly has the credentials. Reverend George Hargreaves is a Pentecostal Minister and former leader of the UK Christian Party, as well as a young earth creationist and strong opponent of abortion and homosexuality. He led the protests that got “Jerry Springer the Opera” shut down in London a few years back, and is on record as saying that religion is not an appropriate subject for comedy. Before he converted to Christianity, the man was also a DJ and producer of pop music for the London gay scene, interesting background.

So after an hour of cracking jokes at religion’s expense, declaring myself an unapologetic atheist, and explaining why evolutionary science gives a perfectly satisfying naturalistic account of where religion comes from, I sat down with Reverend George and was gobsmacked when he started the interview with: “I don’t know if we’re going to have anything to debate about… I LOVED your show!” We talked for half an hour with the cameras rolling and at one point George said “I don’t know what we disagree about,” so I asked him: “Do you think one of your ancestors was a fish?” He declared that statement a fishy story and denied it, and then we found much to disagree about.

I honestly thought I had written a hard-hitting, provocative and controversial show, but it turns out the religious are loving it as much as the nonbelievers – and I’m not sure how I feel about that. I asked Reverend George why he wasn’t offended, even though he’s officially against comedy that targets religion, and he told me it’s because I take the religious worldview seriously, instead of lazily dismissing it as delusional. The key word here is “lazily” rather than “delusional” because I don’t pull punches about religion being a series of delusions, but I don’t think those delusions are pointless. I think they have evolved (culturally and genetically) to solve adaptive problems in the past, and for religious people accustomed to atheists being derisive and dismissive that’s a (semi) validating perspective.

To listen to songs from The Rap Guide to Religion, you need to back my Kickstarter campaign so I can raise the money to produce a proper record. To check out what the critics here in Edinburgh have to say about my take on religion, read on. And if you want to help organize a gig somewhere, just let me know. The show is open for bookings.

On Sunday Morning [August 17, 2014 GMT] my segment with Reverend George will air on BBC One, so we’ll see what a million British people think of the debate.

All the best from the religious fringe,

Baba

Here’s a link to the BBC One Sunday Morning Live show, where hopefully you’ll be able to catch the segment featuring Baba and Reverend George Hargreaves either livestreamed or shortly thereafter.

A science movie and a science play

Onto the science movie and the play: David Bruggeman on his Pasco Phronesis blog writes about two upcoming movie biopics featuring Alan Turing and Stephen Hawking respectively, in an Aug. 8, 2014 posting. Having covered the Turing movie here (at length) in a July 22, 2014 posting here’s the new information about the Hawking movie from David’s Aug, 8, 2014 posting,

Alan Turing and Stephen Hawking are noted British scientists, well recognized for their work and for having faced significant challenges in their lives.  While they were in different fields and productive in different parts of the 20th century (Hawking is still with us), their stories will compete in movieplexes (at least in the U.S.) this November.

The Theory of Everything is scheduled for release on November 7 and focuses on the early career and life of Hawking.  He’s portrayed by Eddie Redmayne, and the film is directed by James Marsh.  Marsh has several documentaries to his credit, including the Oscar-winning Man on Wire.  Theory is the third film project on Hawking since 2004, but the first to get much attention outside of the United Kingdom (this might explain why it won’t debut in the U.K. until New Year’s Day).  It premieres at the Toronto International Film Festival next month [Sept. 2014].

David features some trailers for both movies and additional information.

Interestingly the science play focuses on the friendship between a female UK scientist and her former student, Margaret Thatcher (a UK Prime Minister). From an Aug. 13, 2014 Alice Bell posting on the Guardian science blog network (Note: Links have been removed),

Adam Ganz’s new play – The Chemistry Between Them, to be broadcast on Radio 4 this month – explores one of the most intriguing friendships in the history of science and politics: Margaret Thatcher and Dorothy Hodgkin.

As well as winning the Nobel Prize in Chemistry for her pioneering scientific work on the structures of proteins, Hodgkin was a left-wing peace campaigner who was awarded the Soviet equivalent of the Nobel Peace Prize, the Order of Lenin. Hardly Thatcher’s type, you might think. But Hodgkin was Thatcher’s tutor at university, and the relationships between science, politics and women in high office are anything but straightforward.

I spoke to Ganz about his interest in the subject, and started by asking him to tell us more about the play.

… they stayed friends throughout Dorothy’s life. Margaret Thatcher apparently had a photo of Dorothy Hodgkin in Downing Street, and they maintained a kind of warm relationship. The play happens in two timescales – one is a meeting in 1983 in Chequers where Dorothy came to plead with Margaret to take nuclear disarmament more seriously at a time when Cruise missiles and SS20s were being stationed in Europe. In fact I’ve set it – I’m not sure of the exact date – shortly after the Korean airliner was shot down, when the Russians feared Nato were possibly planning a first strike. And that is intercut with the time when Margaret is studying chemistry and looking at her journey; what she learned at Somerville, but especially what she learned from Dorothy.

Here’s a link to the BBC 4 webpage for The Chemistry Between Them. I gather the broadcast will be Weds., Aug. 20, 2014 at 1415 hours GMT.

Chemistry and authentication of a Lawren Harris painting

The final item for this posting concerns Canadian art, chemistry, and the quest to prove the authenticity of a painting. Roberta Staley, editor of Canadian Chemical News (ACCN), has written a concise technical story about David Robertson’s quest to authenticate a painting he purchased some years ago,

Fourteen years ago, David Robertson of Delta, British Columbia was holidaying in Ontario when he stopped at a small antique shop in the community of Bala, two hours north of Toronto in cottage country. An unsigned 1912 oil painting caught his attention. Thinking it evocative of a Group of Seven painting, Robertson paid the asking price of $280 and took it home to hang above his fireplace.

Roberta has very kindly made it available as a PDF: ChemistryNews_Art.Mystery.Group.7. It will also be available online at the Canadian Chemical News website soon. (It’s not in the July/August 2014 issue.)

For anyone who might recognize the topic, I wrote a sprawling five-part series (over 5000 words) on the story starting with part one. Roberta’s piece is 800 words and offers her  account of the tests for both Autumn Harbour and the authentic Harris painting, Hurdy Gurdy. I was able to attend only one of them (Autumn Harbour).

David William Robertson, Autumn Harbour’s owner has recently (I received a notice on Aug. 13, 2014) updated his website with all of the scientific material and points of authentication that he feels prove his case.

Have a very nice weekend!

Hemp as a substitute for graphene in supercapacitors

As a member of the Cannabis plant family, hemp has an undeserved reputation due to its cousin’s (marijuana) notoriety and consciousness-altering properties. Hemp is, by contrast, the Puritan in the family, associated by the knowledgeable with virtues of thrift and hard work.

An Aug. 12, 2014 news item on Nanowerk highlights a hemp/supercapacitor presentation at the 248th meeting of the American Chemical Society (ACS),

As hemp makes a comeback in the U.S. after a decades-long ban on its cultivation, scientists are reporting that fibers from the plant can pack as much energy and power as graphene, long-touted as the model material for supercapacitors. They’re presenting their research, which a Canadian start-up company is working on scaling up, at the 248th National Meeting & Exposition of the American Chemical Society (ACS), the world’s largest scientific society.

David Mitlin, Ph.D., explains that supercapacitors are energy storage devices that have huge potential to transform the way future electronics are powered. Unlike today’s rechargeable batteries, which sip up energy over several hours, supercapacitors can charge and discharge within seconds. But they normally can’t store nearly as much energy as batteries, an important property known as energy density. One approach researchers are taking to boost supercapacitors’ energy density is to design better electrodes. Mitlin’s team has figured out how to make them from certain hemp fibers — and they can hold as much energy as the current top contender: graphene.

An Aug. 12, 2014 ACS news release features David Mitlin, formerly of the University of Alberta (Canada) where this research took place,, Mitlin is now with now with Clarkson University in New York,

“Our device’s electrochemical performance is on par with or better than graphene-based devices,” Mitlin says. “The key advantage is that our electrodes are made from biowaste using a simple process, and therefore, are much cheaper than graphene.”

The race toward the ideal supercapacitor has largely focused on graphene — a strong, light material made of atom-thick layers of carbon, which when stacked, can be made into electrodes. Scientists are investigating how they can take advantage of graphene’s unique properties to build better solar cells, water filtration systems, touch-screen technology, as well as batteries and supercapacitors. The problem is it’s expensive.

Mitlin’s group decided to see if they could make graphene-like carbons from hemp bast fibers. The fibers come from the inner bark of the plant and often are discarded from Canada’s fast-growing industries that use hemp for clothing, construction materials and other products. …

His team found that if they heated the fibers for 24 hours at a little over 350 degrees Fahrenheit, and then blasted the resulting material with more intense heat, it would exfoliate into carbon nanosheets.

Mitlin’s team built their supercapacitors using the hemp-derived carbons as electrodes and an ionic liquid as the electrolyte. Fully assembled, the devices performed far better than commercial supercapacitors in both energy density and the range of temperatures over which they can work. The hemp-based devices yielded energy densities as high as 12 Watt-hours per kilogram, two to three times higher than commercial counterparts. They also operate over an impressive temperature range, from freezing to more than 200 degrees Fahrenheit.

“We’re past the proof-of-principle stage for the fully functional supercapacitor,” he says. “Now we’re gearing up for small-scale manufacturing.”

I have not been able to confirm the name for Mitlin’s startup but I think it’s called Alta Supercaps (Alta being an abbreviation for Alberta,, amongst other things, and supercaps for supercapacitors) as per the information about a new startup on the Mitlin Group webspace (scroll down to the July 2, 2013 news item) which can still be found on the University of Alberta website (as of Aug. 12, 2014).

For those who would like more technical details, there is this July 2013 article by Mark Crawford for the ASME (American Society of Mechanical Engineers); Note: A link has been removed.

Activated carbons, templated carbons, carbon nanofibers, carbon nanotubes, and graphene have all been intensively studied as materials for supercapacitor electrodes. High manufacturing costs is one issue—another is that the power characteristics of many of these carbons are limited. This is a result of high microporosity, which increases ion transport limitations.

“It is becoming well understood that the key to achieving high power in porous electrodes is to reduce the ion transport limitations” says Mitlin. “Nanomaterials based on graphene and their hybrids have emerged as a new class of promising high-rate electrode candidates—they are, however, too expensive to manufacture compared to activated carbons derived from pyrolysis of agricultural wastes, or from the coking operations.”

Biomass, which mainly contains cellulose and lignin by-products, is widely utilized as a feedstock for producing activated carbons. Mitlin decided to test hemp bast fiber’s unique cellular structure to see if it could produce graphene-like carbon nanosheets.

Hemp fiber waste was pressure-cooked (hydrothermal synthesis) at 180 °C for 24 hours. The resulting carbonized material was treated with potassium hydroxide and then heated to temperatures as high as 800 °C, resulting in the formation of uniquely structured nanosheets. Testing of this material revealed that it discharged 49 kW of power per kg of material—nearly triple what standard commercial electrodes supply, 17 kW/kg.

Mitlin and his team successfully synthesized two-dimensional, yet interconnected, carbon nanosheets with superior electrochemical storage properties comparable to those of state-of-the-art graphene-based electrodes. “We were able to achieve this by employing a biomass precursor with a unique structure—hemp bast fiber,” says Mitlin. “The resultant graphene-like nanosheets possess fundamentally different properties—such as pore size distribution, physical interconnectedness, and electrical conductivity—as compared to conventional biomass-derived activated carbons.”

This image from Wikimedia was used to illustrate the Crawford article,

Hemp bast fiber is a low-cost graphene-like nanomaterial. Image: Wikimedia Commons

Hemp bast fiber is a low-cost graphene-like nanomaterial. Image: Wikimedia Commons

It seems to me that over the last few months there have been more than the usual number of supercapacitor stories, which makes the race to create the one that will break through in the marketplace fascinating to observe.