Tag Archives: Sauder School of Business University of British Columbia

Glass and cellulose nanocrystals at the University of British Columbia

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I got a news release from the folks at the University of British Columbia (UBC) about nanocrystals of cellulose (I imagine this is a another of sayng nanocystalline cellulose, a topic I’ve posted about a number of times,  most recently in my Aug. 27, 2010 interview with Dr. Richard Berry of FPInnovations).

From the UBC news release,

Using nanocrystals of cellulose, the main component of pulp and paper, chemistry researchers at the University of British Columbia have created glass films that have applications for energy conservation in building design because of their ability to reflect specific wavelengths of light, such as ultra violet, visible or infrared.

These nanoporous films, described in a paper published in today’s [November 17, 2010] issue of Nature, may also be used in optical filters, sensors, or for molecule separation in the pharmaceutical industry.

“This is the first time that the unique, helical structure of cellulose has been replicated in a mineral,” says Mark MacLachlan, associate professor in the chemistry department at UBC and co-authour of the paper. “The films have many applications and we created them from an exciting new product derived from our wood processing industry right here in British Columbia.”

At the molecular level, the films have the helical structure of nanocrystalline cellulose, a building block of wood pulp, explains MacLachlan.

MacLachlan and PhD student Kevin Shopsowitz, post-doctoral fellow Hao Qi and Wadood Hamad of FPInnovations, stumbled upon this discovery while trying to create a hydrogen storage material. [emphasis mine]

The UBC researchers mixed the cellulose from the wood pulp with a silica, or glass, precursor and then burned away the cellulose. The resulting glass films are composed of pores, or holes, arranged in a helical structure that resembles a spiral staircase. Each hole is less than 1/10,000th of the diameter of a human hair.

“When Kevin showed me the films and they were red, blue, yellow and green, I knew we’d been able to maintain the helical structure found in the cellulose.”

“The helical organization we produced synthetically mimics the structure of the exoskeletons of some iridescent beetles,” says Shopsowitz.

The pores in the helix give the films a wide range of applications. When certain liquids are added to the film, the liquid gets trapped in the pores and changes the optical properties of the films.

“By functionalizing the pores to make them more selective to particular chemicals, we may be able to develop new sensors that are very sensitive for detecting substances in the environment,” says Shopsowitz.

To reduce the energy needed to cool buildings, windows could be treated with the transparent films that reflect infrared light – the light that heats up a building. Right now, metal particles are often used to do this but they tint the windows brown.

This research was done in partnership with FPInnovations, an organization dedicated to developing new products from the forest sector, and with funding from the Natural Sciences and Engineering Research Council of Canada.

I hope to hear about this soon as it feeds into my fascination with windows and, if I read this rightly, this discovery may lead to products that are both useful and aesthetically pleasing.

First Open Science Summit: Updating the social contract for science

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Christine Peterson from the Foresight Institute will be presenting on “Safety and Security Concerns, Open Source Biodefense” at 5:15 PM on Friday, July 30, 2010 at the first ever Open Science Summit being held at the University of California, Berkeley campus, July 29 – 31 2010. From the Open Science Summit website,

Despite nostalgic myths that Science is the realm of open inquiry, reasoned debate, and the pursuit of objective truth, it has always been politicized, though never to the dangerous degree attained just in the past decade. The viciousness of the fight over embryonic stem cell research, the conflict over creationism, and the politics of climate change are unprecedented new lows. Public confidence in science and technology is deeply shaken, as the outcry over genetically modified organisms attests. When biotechnology, the veritable “toolkit of life,” that could feed the hungry, heal the ill, and fuel the economy without despoiling the environment, is greeted with suspicion and downright hostility, we must acknowledge a deep failure. Citizens and consumers correctly worry that science has sold them out, as companies compromise safety and engineering standards in the dash to control the marketplace.

Beginning in the mid 1980’s a few judicial decisions, with no public or policy deliberation whatsoever, opened the floodgates to an exponential expansion in the filing of patents covering new subject matter and technologies that were never anticipated in the industrial age during which the system evolved. Indeed, there is a growing consensus that the unchecked proliferation of intellectual property rights is perversely out of touch with, and downright inimical to, the collaborative, cumulative, and interdependent essence of innovation in the 21st century’s networked knowledge economy. [emphasis mine] As the global economy struggles to find a new equilibrium after the financial meltdown, it is indisputable that old business models are unsustainable—this applies equally, indeed, especially, to technology and biomedicine, where cycles of over-hype, under-deliver, bubble then bust, have failed to produce cures for desperate, disappointed, and now disillusioned patients, bold proclamations of a “War on Cancer,” notwithstanding.

Then they start discussing alternative models and innovation,

In the last ten years, a collection of burgeoning movements has begun the herculean task of overhauling the outmoded institutions and worldviews that make up our global scientific governance system. Proponents of the Access to Knowledge movement (A2K) have united around the principle that data and knowledge are “anti-rivalrous,” the value of information increases as it spreads. Open Access Journals have demonstrated a new path for publishing that utilizes the power of the internet to instantly distribute ideas instead of imposing artificial scarcity to prop up old business models. “Health 2.0” entrepreneurs are seeking to apply the lessons of e-commerce to empower patients. However, these different efforts are each working on a piece of a problem without a view of the whole. It is not sufficient or realistic to tweak one component of the innovation system (eg, patent policy) and assume the others stay static. Instead, dynamic, interactive, nonlinear change is unfolding. The Open Science Summit is the first and only event to consider what happens throughout the entire innovation chain as reform in one area influences the prospects in others. In the best case scenario, a virtuous circle of mutually reinforcing shifts toward transparency and collaboration could unleash hitherto untapped reserves of human ingenuity.

I know it’s a little high-minded but it’s important to be idealistic every once in a while as I think your soul shrivels up otherwise. Unexpectedly, there’s a Canadian connection. I recognized two participating organizations (although there may be more) from Canada, the University of Calgary and the Sauder School of Business at the University of British Columbia.

If you can’t attend, there will be a livestream by Fora.tv, you can find the details here.