Tag Archives: nanolithography

World’s smallest record features Christmas classic “Rockin’ Around the Christmas Tree”

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Scientists like to have a little fun too as this December 23, 2022 news item on Nanowerk shows,

Measuring only 40 micrometres in diameter, researchers at DTU Physics have made the smallest record ever cut. Featuring the first 25 seconds of the Christmas classic “Rocking Around the Christmas Tree” [sic], the single is cut using a new nano-sculpting machine – the Nanofrazor – recently acquired from Heidelberg Instruments. The Nanofrazor can engrave 3D patterns into surfaces with nanoscale resolution, allowing the researchers to create new nanostructures that may pave the way for novel technologies in fields such as quantum devices, magnetic sensors and electron optics.

”I have done lithography for 30 years, and although we’ve had this machine for a while, it still feels like science fiction. We’ve done many experiments, like making a copy of the Mona Lisa in a 12 by 16-micrometre area with a pixel size of ten nanometers. We’ve also printed an image of DTU’s founder – Hans Christian Ørsted – in an 8 by 12-micrometre size with a pixel size of 2.540.000 DPI. To get an idea of the scale we are working at, we could write our signatures on a red blood cell with this thing,” says Professor Peter Bøggild from DTU Physics.

“The most radical thing is that we can create free-form 3D landscapes at that crazy resolution – this grey-scale nanolithography is a true game-changer for our research”.

…

The scientists show how they inscribed the song onto the world’s smallest record (Note 1: You will not hear the song. Note 2: i don’t know how many times I’ve seen news releases about audio files (a recorded song, fish singing, etc.) that are not included … sigh),

A December 22, 2022 Technical University of Denmark press release (also on EurekAlert), which originated the news item, provides detail about the work,

Nanoscale Christmas record – in stereo
The Nanofrazor is not like a printer adding material to a medium; instead, it works like a CNC (computer numerical controle) machine removing material at precise locations, leaving the desired shape behind. In the case of the miniature pictures of Mona Lisa and H.C. Ørsted, the final image is defined by the line-by-line removal of polymer until a perfect grey-scale image emerges. To Peter Bøggild, an amateur musician and vinyl record enthusiast, the idea of cutting a nanoscale record was obvious.

“We decided that we might as well try and print a record. We’ve taken a snippet of Rocking Around The Christmas Tree and have cut it just like you would cut a normal record—although, since we’re working on the nanoscale, this one isn’t playable on your average turntable. The Nanofrazor was put to work as a record-cutting lathe – converting an audio signal into a spiralled groove on the surface of the medium. In this case, the medium is a different polymer than vinyl. We even encoded the music in stereo – the lateral wriggles is the left channel, whereas the depth modulation contains the right channel. It may be too impractical and expensive to become a hit record. To read the groove, you need a rather costly atomic force microscope or the Nanofrazor, but it is definitely doable.”

High-speed, low-cost nanostructures

The NOVO Foundation grant BIOMAG, which made the Nanofrazor dream possible, is not about cutting Christmas records or printing images of famous people. Peter Bøggild and his colleagues, Tim Booth and Nolan Lassaline, have other plans. They expect that the Nanofrazor will allow them to sculpt 3D nanostructures in extremely precise detail and do so at high speed and low cost – something that is impossible with existing tools.

“We work with 2D materials, and when these ultrathin materials are carefully laid down on the 3D landscapes, they follow the contours of the surface. In short, they curve, and that is a powerful and entirely new way of “programming” materials to do things that no one would believe were possible just fifteen years ago. For instance, when curved in just the right way, graphene behaves as if there is a giant magnetic field when there is, in fact, none. And we can curve it just the right way with the Nanofrazor,” says Peter Bøggild.

Associate professor Tim Booth adds:

“The fact that we can now accurately shape the surfaces with nanoscale precision at pretty much the speed of imagination is a game changer for us. We have many ideas for what to do next and believe that this machine will significantly speed up the prototyping of new structures. Our main goal is to develop novel magnetic sensors for detecting currents in the living brain within the BIOMAG project. Still, we also look forward to creating precisely sculpted potential landscapes with which we can better control electron waves. There is much work to do.”

Postdoc Nolan Lassaline (who cut the Christmas record), was recently awarded a DKK 2 Mio. VILLUM EXPERIMENT grant to create “quantum soap bubbles” in graphene. He will use the grant – and the Nanofrazor – to explore new ways of structuring nanomaterials and develop novel ways of manipulating electrons in atomically thin materials.

“Quantum soap bubbles are smooth electronic potentials where we add artificially tailored disorders. By doing so, we can manipulate how electrons flow in graphene. We hope to understand how electrons move in engineered disordered potentials and explore if this could become a new platform for advanced neural networks and quantum information processing.”

The Nanofrazor system is now part of the DTU Physics NANOMADE’s unique fabrication facility for air-sensitive 2D materials and devices and part of E-MAT, a greater ecosystem for air-sensitive nanomaterials processing and fabrication led by Prof. Nini Pryds, DTU Energy.

While it’s not an audio file from the smallest record, this features Brenda Lee (who first recorded the song in 1958) in a ‘singalong’ version of “Rockin’ Around the Christmas Tree,”

Bøggild was last featured here in a December 24, 2021 posting “Season’s Greetings with the world’s thinnest Christmas tree.”

Have a lovely Christmas/Winter Solstice/Kwanzaa/Hannukah/Saturnalia/??? celebration!

Nano, the Memphis Zoo, and connecting with kids

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Who would have thought that the US Dept. of Agriculture would be awarding the Memphis Zoo $500,000.00 for a project to connect rural schools online for a NanoZoo? Kudos to Dr. Helen Beady, Director of Education, and the staff at the Memphis Zoo for a truly imaginative approach to science education.  From the March 9, 2011 news release,

Dr. Helen Beady, Memphis Zoo Director of Education, applied for this grant [Distance Learning and Telemedicine Grant Program] to help fund the Education Department’s ventures in nanotechnology through a program called “NanoZoo Connects.” This program will initially reach 14 schools in rural Tennessee through distance learning technology.

The Memphis Zoo’s “Discovery Center” will be renovated to become a state-of-the-art studio in which Zoo educators will be able to communicate through a video-bridge with some 7000 students in rural classrooms.

“This is just the beginning,” said Dr. Beady. “This grant will give us the ability to begin a program that will be improved and expanded for years to come. We can’t wait to see what the future holds for distance learning through this new technology.”

It was a story about a lotus leaf at a conference presentation that fired Helen Beady’s imagination three years ago. Scientists working at the nanoscale talk a lot about biomimcry. The lotus leaf is an excellent example of a material that is naturally water-resistant and finding out how the leaf achieves its water-resistant state and using that knowledge to create new textiles is an example of biomimicry.

The notion of biomimicry that helped Dr. Beady to tie together her interest in nanotechnology with exciting children’s interest in the zoo and the animals and integrating STEM (science, technology, engineering, and mathematics) education objectives in a single programme,  NanoZoo.  That project designed for students from kindergarten to high school was launched in August 2010. From the news release,

The concept of nanotechnology as it is taught through “NanoZoo” explores the ways animals and plants can help science improve the way we live and work. For example, students are taught how the Lotus leaf has inspired the development of fabrics that can remain under water for days and not get wet, and how the stick-ability of a Gecko’s foot has motivated the production of tape that allows a robot to walk vertically up a wall.

This new project which is being funded through the Dept. of Agriculture is the NanoZoo Connects distance education project.  From the news release,

“NanoZoo and distance learning bring the Memphis Zoo on the cutting edge of technology,” said Zoo President and CEO, Chuck Brady. “What we learn in the early stages of these initiatives will revolutionize the way we are able to help educate students in Tennessee and, one day, across the globe.

The $500,000. will purchase equipment necessary to make the distance education experience successful. (If you’ve ever struggled with connections and bug-ridden software while trying to pursuing any kind of distance education programme, you can appreciate how important good equipment and software are.) From the news release,

The Memphis Zoo’s “Discovery Center” will be renovated to become a state-of-the-art studio in which Zoo educators will be able to communicate through a video-bridge with some 7000 students in rural classrooms.

What’s striking in this project is the multidisciplinary approach from inception to execution with all of it grounded in the zoo’s basic mission statement: “The Memphis Zoo preserves wildlife through education, conservation and research.” I’ll restate this to say, it’s about discovering and healing the relationship between people, animals, and nature. So by that token, teaching and discussing biomimicry and nanotechnology are not such a far reach as some may believe.

Here’s one last item to illustrate the point. I asked Tiffany Langston, a member of the Memphis Zoo’s marketing and communications department, for something either she or the children have found particularly interesting in the NanoZoo.  Tiffany informed me that the Memphis Zoo is one of only four in the US that have pandas and the only food they will eat is bamboo (40 lbs. per day!). Students at the NanoZoo find out that the fibre within the bamboo stalks features a hexagonal structure at the nanoscale which makes the fibre (at the nanoscale) stronger than steel. Today, scientists are trying to mimic those structures to create strong materials that are produced in a more environmentally friendly fashion than steel.

Meanwhile, Dr. Beady has more projects up her sleeve (from the news release),

The Zoo’s Education Department has recently received a $25,000 environmental grant from the City of Memphis Office of Youth Services and Community Affairs to develop a Science, Technology, Engineering and Math (STEM) field program that focuses on the emerging science nanotechnology. This program will help inner city students draw connections between technology, plants, animals and those things that exist in the “big” world through our “NanoZoo.”

The NanoZoo initiative was celebrated at the Memphis Zoo’s Nano Days event on March 28, 2011 (from the news release),

On March 28, 2011 from 9:00 a.m. until 1:00 p.m. the Memphis Zoo invites you to join us for NanoDays and our One Bazillion Nano Meter Walk (leisurely 1 mile stroll). This event will include hands-on demonstrations which explore how scientists mimic traits of plants and animals to inspire innovations in technology and engineering.

The event attracted US Senator Steve Cohen who had this to say in a recent news release to the Memphis Business Journal (http://www.bizjournals.com/memphis/news/2011/03/28/memphis-zoo-gets-500000-nano-grant.html),

The initiative, NanoZoo Connects!, will help demonstrate how scientists use nanotechnology to mimic particular traits of animals and plants to solve engineering and technological problems, according to a release issued by U.S. Sen. Steve Cohen’s office.

“If we are going to successfully compete in a rapidly changing 21st century global economy, our children must have the necessary tools to get ahead,” Cohen said. “The NanoZoo Connects! program will help us accomplish such a goal.”

Dr. Helen Beady told me that she drew on her experience as a former business owner, where she was in the position of trying to hire people who didn’t have the necessary skills or education, to develop the NanoZoo programme. Multidisciplinary in nature. Dr. Beady has hired an engineer and a PhD. in biochemistry to assist with further developing the NanoZoo.

All of this may or may not lead to ‘successful competition in the 21st century global economy’ but it certainly will lead to children learning more about animals and nature and how we might all better co-exist on this planet.

Canada Foundation for Innovation “World’s Best”?; Ping hoodie, clothing that networks socially; life protection clothing; getting spiders to weave building materials?; open access archive for nano papers

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The headline for the news release on Marketwire (via the Canadian Science Policy site) is: Canada Foundation for Innovation(CFI) Practices is Called ‘World’s Best’. As it’s been a bit slow for news here I began wondering ‘which practices in which countries are being compared’? After reviewing the reports quickly, I can’t answer the question. There are no bibliographies in any of the three reports related to this KPMG study while the footnotes make reference only to other KPMG and Canadian studies. It was a bit of surprise, I was expecting to see reports from other countries and/or from international organizations and some insight into their analysis as comparing agencies in different countries can be complicated.

I’m not sure how they arrived at their conclusion although they provide some interesting data. From the Overall Evaluation report (p. 28 PDF, p. 24 print),

Exhibit [Table] 4.16 shows that, on average, there have been about 6.4 collaborations with end-users per PL/PU in the past year, three-quarters of which used the CFI projects as key resources, and about 10.2 collaborations per Department Head, about 70% of which using CFI projects in a significant way. For PLs/PUs, there are only small differences in use of CFI projects as a key resource by type of end-user, but Department Heads show more variation in the use of CFI project by type of user; it is unknown if this is significant.

Note that 64% of PL/PUs’ and 80% of Department Heads’ end-user collaborations, respectively, are with Canadian organizations; there is a significant international component (with OMS data suggesting that the CFI projects are a significant attractor for international organizations to collaborate [emphasis mine]).

It certainly seems laudable although I question whether you can conclude that the CFI is a significant international organization attractor by inference alone. Shouldn’t this be backed up with another instrument, such as a questionnaire for a survey/poll of the international organizations, asking why they are collaborating with Canadian scientists? I was not able to find any mention of such a survey or poll taking place.

From everything I hear, Canadians are excellent at academic science research and attracting researchers from around the world and because of our penchant for collaboration we (as they say) “punch above our weight.” I just wish this report did a better job of providing evidence for its assertions about the CFI’s ‘best practices’.

Ping hoodie

Thanks to Adrian Covert’s article on Fast Company, I found information about a prototype for a piece of wearable computing, the Ping hoodie. From Covert’s article,

The Ping clothing concept makes use of embedded electronics and haptics controlled by the Arduino Lilypad system, which transmits to your device (most likely a smartphone) using the Lylipad Xbee. This tech serves as the core interface between you and the information you need. If someone special is sending you a call or text, you can set the hoodie to vibrate in a specific manner, letting you know it’s them. Actions as simple as lifting or dropping the hood can be used to send status updates and messages on Facebook, with the potential to target certain groups of friends.

There’s more at Fast Company or you can check out electricfoxy where the designer, Jennifer Darmour has her site which is where I found this image,

Ping hoodie (wearable computing) designed by Jennifer Darmour at electricfoxy

Do go to Darmour’s site (although Fast Company offers a pretty good selection) if you want to see all the images including close ups of the fabric (don’t forget to scroll horizontally as well as vertically).

Clothing that protects your life

P2i, a company I’ve mentioned here before, has announced a ‘new’ revolutionary form of protective clothing. Actually, it sounds like an improvement rather than a revolutionary concept but maybe I’m getting jaded. From the news item on Nanowerk,

A revolutionary new generation of high-performance body armour, launched today, is lighter, more comfortable and more protective than any previous design, thanks to P2i’s liquid-repellent nano-coating technology.

The new G Tech Vest is a joint development between two world-class UK companies with very strong credentials for the life protection market: P2i, whose technology was originally developed to make soldiers’ protective clothing more effective against chemical attack; and Global Armour, which has been at the leading edge of product innovation in the armour industry for over 30 years.

The G Tech Vest employs brand-new lightweight materials, both in the physical armour itself (a closely-guarded trade secret) and the fabric that forms the armour into a garment. P2i’s technology reduces weight by avoiding the need for bulky durable water repellents and increases comfort by preserving the natural airflow and drape of the garment material.

I recently (April 15, 2010) made a comment about how modern soldiers are beginning to resemble medieval knights and this talk of armour certainly reinforces the impression.

Spiders weaving building materials?

Michael Berger at Nanowerk has written an in-depth article about spider silk and its possible application, amongst others, as a building material. He’s interviewed one of the authors (Markus J. Buehler) of a recent paper that lays out “… a framework for predicting the nanostructure of spider silk using atomistic principles.” More from the Spotlight article on Nanowerk,

In a paper published as the cover article in Applied Physics Letters on April 12, 2010 (“Atomistic model of the spider silk nanostructure”), [Sinan] Keten and Buehler demonstrate an innovative application of replica exchange molecular dynamics simulations on a key spider silk repeating sequence, resulting in the first atomistic level structure of spider silk.

More specifically, the MIT researchers found the formation of beta-sheet structures in poly-Ala rich parts of the structure, the presence of semi-extended GGX domains that form H-bonded 31 helix type structures and a complete lack of alpha-helical conformations in the molecular structures formed by the self-assembly of MaSp1 proteins. These results resolve controversies around the structure of the amorphous domains in silk, by illustrating for the first time that these semi-extended, well-oriented and more sparsely H-bonded structures that resemble 31 helices could be the molecular source of the large semi-crystalline fraction of silks and the so-called ‘pre-stretched’ configuration proposed for these domains.

Shy of reading the original research, which I likely wouldn’t understand easily, Berger’s article provides an excellent entry into the subject.

Open access archive for nano papers

My final item for today is about a project to give free access to papers on nanotechnology that they host and/or publish.  Hooray! It’s very frustrating to get stuck behind paywalls so I’m thrilled that there’s an agency offering free access. From the news item on Nanowerk,

The Nano Archive, the online open-access repository for nanoscience and nanotechnology, invites you to submit research papers to be published free online for users across the globe.

Submitted papers can include peer-reviewed articles, journal articles, review articles, conference and workshop papers, theses and dissertations, book chapters and sections, as well as multimedia and audio-visual materials. The Nano Archive also welcomes new, unpublished research results to be shared with the wider community.

The Nano Archive is part of the ICPC NanoNet project, funded by the EU under FP7. It brings together partners from the EU, Russia, India, China and Africa, and provides wider access to published nanoscience research and opportunities for collaboration between scientists in the EU and International Cooperation Partner Countries.

The Nano Archive currently hosts over 6000 papers. You can read more about the sponsoring agency, the ICPC (International Cooperation Partner Countries) NanoNet here. It has funding for four years and was started in 2008.

Cloud project for London 2012 Olympics includes Umberto Eco?; University of Toronto researchers work on nano nose; Nano safety research centre in Scotland

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Shades of the 19th century! One of the teams competing to build a 2012 Olympics tourist attraction for London’s east end has proposed digital clouds. According to the article (Digital cloud plan for city skies) by Jonathan Fildes, online here at BBC News,

The construction would include 120m- (400ft-) tall mesh towers and a series of interconnected plastic bubbles that can be used to display images and data.

The Cloud, as it is known, would also be used [as] an observation deck and park

The idea of displaying images and data on clouds isn’t entirely new,

… the prospect of illuminated messages on the slate of the heavens … most fascinated experts and layman. “Imagine the effect,” speculated the Electrical Review [Dec. 31, 1892], “if a million people saw in gigantic characters across the clouds such words as ‘BEWARE OF PROTECTION’ and “FREE TRADE LEADS TO H–L!”

(The passage is from Carolyn Marvin’s book, When old technologies were new.) I’m not sure what protection refers to but the reference to free trade still feels fresh.

I always find technology connections to the past quite interesting as similar ideas pop up independently from time to time and I’d be willing to bet the 2012 cloud team has no idea that displaying messages on clouds had been proposed as far back as the 1890s.

The current project has some interesting twists. The team is proposing to fund it with micro-donations from millions of people. From the BBC article,

“It’s really about people coming together to raise the Cloud,” Carlo Ratti, one of the architects behind the design from the Massachusetts Institute of Technology (MIT) told BBC News.

“We can build our Cloud with £5m or £50m. The flexibility of the structural system will allow us to tune the size of the Cloud to the level of funding that is reached.”

The size of the structure will evolve depending on the number of contributions, he said.

The cloud will not consume power from the city’s grid.

“Many tall towers have preceded this, but our achievement is the high degree of transparency, the minimal use of material and the vast volume created by the spheres,” said professor Joerg Schleich, the structural engineer behind the towers.

Professor Schleich was responsible for the Olympic Stadium in Munich as well as numerous lightweight towers built to the same design as the Cloud.

The structure would also be used to harvest all the energy it produces according to Professor Ratti.

“It would be a zero power cloud,” he said.

The team in addition to designers, scientists, and engineers includes Umberto Eco, a philosopher, semiotician, novelist, medievalist, and literary critic.

Yes, they have a writer on the team for a truly interdisciplinary approach. Or not. Eco may have lent his name to the project and not been an active participant. Still, I’m much encouraged by Eco’s participation (regardless of the amount or type) in this project as I think writers have, for the most part, been fusty and slow to engage with the changes we’re all experiencing.

At the University of Toronto (U of T), researchers are working on a project that they hope will be of interest to NASA ([US] National Aeronautics and Space Administration). From the news item on Azonano,

Thankfully, there is no failure to launch at U of T’s new electron beam nanolithography facility where researchers are already developing smaller-than-tiny award-winning devices to improve disease diagnoses and enhance technology that impacts fields as varied as space exploration, the environment, health care and information and media technologies.

One of these novel nano-devices, being developed by PhD student Muhammad Alam, is an optical nose that is capable of detecting multiple gases. Alam hopes it will be used by NASA one day.

Alam is working on a hydrogen sensor which can be used to detect the gas. Hydrogen is used in many industries and its use is rising so there is great interest in finding ways to handle it more safely and effectively. As for NASA, sometimes those rockets don’t get launched because they detect a hydrogen leak that didn’t actually happen. The U of T ‘nose’ promises to be more reliable than the current sensors in use.

Scotland is hosting one of the first nanomaterials research centres in the UK. From the news item on Nanowerk,

Professor Anne Glover, Chief Scientific Adviser for Scotland officially launched the new centre today (Wednesday, November 11) at Edinburgh Napier’s Craighouse Campus.
She said: “Given the widespread use of nanomaterials in [a] variety of everyday products, it is essential for us to fully understand them and their potential impacts. This centre is one of the first in the UK to bring together nano-science research across human, environment, reproductive health and microbiology to ensure the safe and sustainable ongoing use of nanotechnology.”
Director of the Centre for Nano Safety, Professor Vicki Stone said: “Nanomaterials are used in a diverse range of products from medicines and water purifiers to make-up, food, paints, clothing and electronics. It is therefore essential that we fully understand their longterm impact. We are dedicated to understanding the ongoing health and environmental affects of their use and then helping shape future policy for their development. The launch of this new centre is a huge step forward in this important area of research.”

It’s hard to see these initiatives (I mentioned more in yesterday’s [Nov. 10, 2009] posting) in the UK and Europe and not contrast them harshly with the Canadian scene. There may be large scale public engagement, public awareness, safety initiatives, etc. for nanotechnology in Canada but nobody is giving out any information about it.

HIV testing, nano gold, and Uganda; not so obsolete?; new nanotube manufacturing technique from McGill University

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There’s a portable blood-testing machine, designed by US-based PointCare, which can give a print-out detailing a patient’s immune status in 10 minutes. The machine was designed for use in third-world or developing world clinics such as the one in Uganda which is described in this BBC story.

One of the problems doctors and medical staff had with equipment for testing HIV patients’ immune system was that the chemicals used as reagents in the testing process were too easily perishable in the high heat common in a lot of countries. PointCare soved the problem this way (from the BBC article):

Dr Hansen [from PointCare] invented a test that uses chemical reagent that can be freeze-dried and stored in temperatures of over 40C.

CD4 screening tests use antibodies – molecular tags that recognise and latch onto a chemical marker on the surface of the cell. By attaching to the cells, they act as flags distinguishing CD4 cells from other white blood cells.

But these antibodies need to be “labelled”, so they can be detected by a machine.

Traditionally, antibodies are labelled using fluorescent markers, but these fluorescent chemicals perish if they are not kept refrigerated. So they’re useless for a medical team operating from a temporary clinic in the heat of an African summer.

Dr Hansen developed a new label. “We use colloidal gold,” explains Dr Krauledat [community physician]. “It’s true nanotechnology – extremely tiny gold particles attached to the anti-CD4 antibody.”

Do go and read the full story because there’s more to it than I’ve included. Meanwhile I had another look at those lithography stories (SFU’s new maskwriting facilities and RAPID) that I was posting about last week. While the new RAPID technique may make the use of ultra-violet light obsolete, they still haven’t approached the nanoscale. The measurement mentioned is “… 2500 times smaller than a human hair” [more here]. The measurement usually mentioned when discussing the nanoscale  is between 1/100,000 ro 1/60,000 (nobody seems to agree on the exact measurement, you can check here) of the width of a human hair equals 1 nanometre.  Weirdly, the Simon Fraser University (SFU) release notes that the new facilities will be able to create structures “… under 20 nanometres about 10,000 times smaller than the diameter of a human hair” [more here]. If I’m doing the math correctly, wouldn’t that be between 1/50,0000 and 1/30,000 of the human hair? I know it’s a little fussy but once a technical writer, always a technical writer and that kind of detail can make a big difference.

Researchers led by Dr. Hanadi Sleiman and Dr. Gonzalo Cosa at McGill University (Montreal, Canada) have developed a new way to manufacture nanotubes using DNA, in short they are DNA nanotubes. The longer story is here and the shorter story is here.

Maskwriting facilities already obsolete?

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It’s exciting when discoveries and innovations are coming fast and furious but it can be difficult to figure out exactly how to proceed. I just read about a new table-top technique for nanofabrication that doesn’t require ultra-violet light.  This stands in contrast to the proposed new maskwriting facility for nanofrabrication at Simon Fraser University (SFU). The processes described in the SFU release and in the article about the table-top technique  for lithographic patterning seem very similar except one uses ultra violet-light and the other does not.  At this pace it seems as if the SFU facility is likely to beocme obsolete soon. Still, it’s a long way from experiments in a laboratory to industrial use as planned at SFU and I don’t imagine that it makes much sense to wait for the new process. After all by the time that’s ready for  ‘prime time’ use, there’ll probably be another discovery.

Maskwriting facilities at 4D Labs and some bottom-up engineering news

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Following up on yesterday’s news from Simon Fraser University (SFU), I gather that maskwriting has to do with fabricating nanoscale materials and the facility they will be building for their 4D Labs will allow them to create nanoscale structures that measure less than 20 nanometres.

“This capability will eventually be as key to nanoscale materials fabrication as the photocopier is to information dissemination,” explains [Byron] Gates, 4D LABS’ director of nanofabrication. “With our new maskwriting facility, we’ll be able to fabricate the next generation of technologies, particularly in the fields of alternative energy and biomedical engineering.”

Local companies will not have send off to Alberta to get this work done and it will give 4D Labs some revenue.  Given that universities are under pressure these days to develop new revenue streams, this has to be good news.

Meanwhile, scientists at the California Institute of Technology (Caltech) have recently published a paper describing their work on bottom-up engineering of DNA ‘seeds’. The two main approaches to engineering in nanotechnology (and this is simplified) are top-down and bottom-up. Traditional enginerring has been top-down; we make things smaller and smaller. The bottom-up approach means taking your cue from biological processes (or nature) and encouraging objects to build themselves or to ‘grow’. There’s more here.

The Project for Emergining Nanotechnologies’ June 17, 2009 event (mentioned in yesterday’s posting) has been rescheduled to Fall 2009.


Fish camouflage, Australian webinar for nano business, medical nanobots in your bloodstream and Simon Fraser U has nano news

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First off, the American Chemical Society (ACS) has declared ‘The Nano Song‘ a winner (in the People’s Choice and Critic’s Choice categories)  in their ACS Nanotation web community video contest ‘What is Nano?’.  If you haven’t seen the video yet, you can go here (scroll down).

Researchers at Sandia Labs are working to develop materials that change colour in the same that some fish can. Here’s how it works with the fish (from Nanowerk News here):

Certain fish species blend with their environment by changing color like chameleons. Their tiny motor proteins carry skin pigment crystals in their “tails” as they walk with their “feet” along the microtubule skeletons of cells to rearrange the animal’s color display.

The fish change colour as the environment around them changes. The researchers led by George Bachand are trying to enable synthetic or hybrid materials to do the same thing. Applications could be for military and/or fashion.

If you’re interested in the business end of nano, then there’s a webinar courtesy of the Australian Office of Nanotechnology coming up on April 29, 2009. NanoVentures Australia CEO, Peter Binks, will be talking about nanotechnology’s impact on global markets and industries. For more info. about the event, check here and to sign up for the event, go here.

Researchers at Pennsylvania State University (US) are honing in on a way to get hordes of microrobots (or nanobots) that have been introduced into the bloodstream to flock or swarm together so they can repair organs or deliver drugs to a specific target. I gather the problem has been  getting the machines to work together and the proposed solution is to use UV light. More details here.

Finally, some latebreaking news from Simon Fraser University (Vancouver, Canada). The university’s nano research facility, 4D Labs, has won funding (roughly $884, 000) from the federal government’s Western Economic Diversification agency to build a maskwritiing facility.  More about this tomorrow.

Why do they have nanoscale beavers in Oregon?

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I was expecting some sort of Canadian angle since it’s our national animal but no. Apparently a sports team at Oregon State University (OSU) has a logo with a beaver (btw, unexpectedly ferocious looking) and the students at the university physics lab have shrunk it down using a type of pen that has the width of a single protein molecule. “In the nanolithographic work we’re doing for carbon nanotubes and graphene electronics experiments, we need to be able to draw and cut in very careful patterns.” said Jorg Bochterle, an OSU physics exchange student from Germany. There’s more here.