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Nanocrystals


— Science

Chemists create clever rewritable paper

By - December 3, 2014 1 Picture
The paperless office – one of the promises of the new digital age – has not really eventuated. Instead, most organizations still print out large amounts of documents on paper that, according to the WWF, is being produced at around 400 million tons (362 million tonnes) a year and rising. So, wouldn’t it be great if we could just simply wipe off the print on paper and use it over and over again? Chemists at the University of California, Riverside (UCR) thought that this might be a good idea too, and have now created rewritable paper that can be printed on and erased more than 20 times before it needs to be discarded. Read More
— Science

Smart Glass controls both lighting and heat levels

By - August 22, 2013 6 Pictures
Researchers at the Lawrence Berkeley National Laboratory have produced a "smart" glass coating that can be selectively controlled to block visible light, heat-producing near-infrared (NIR) light, or both, by applying a small electrical charge to it. The ability to do this dynamically has the potential to deliver improved lighting, heating, and cooling efficiency in buildings, thereby maximizing energy savings and still providing bright and well lit environments in different weather conditions. Read More
— Science

Replicating hardest known biomaterial could lead to better solar cells and batteries

By - January 17, 2013 2 Pictures
Inspired by the tough teeth of a marine snail and the remarkable process by which they form, assistant professor David Kisailus at the University of California, Riverside is working toward building cheaper, more efficient nanomaterials. By achieving greater control over the low-temperature growth of nanocrystals, his research could improve the performance of solar cells and lithium-ion batteries, lead to higher-performance materials for car and airplane frames, and help develop abrasion-resistant materials that could be used for anything from specialized clothing to dental drills. Read More
— Environment

New nanocrystals let solar panels generate electricity ... and hydrogen gas

By - August 28, 2012 2 Pictures
At first glance, photovoltaic solar panels are brilliant. They’re self-contained, need no fuel and so long as the sun is shining, they make lots of lovely electricity. The trouble is, they’re expensive to make, batteries are poor storage systems for cloudy days, and the panels have a very short service life. Now, Dr. Mikhail Zamkov of Ohio's Bowling Green State University and his team have used synthetic nanocrystals to make solar panels more durable as well as capable of producing hydrogen gas. Read More
— Good Thinking

Bringing Teflon and silicone together shows promise for medical applications

By - August 26, 2012 5 Pictures
Polytetrafluoroethylene (PTFE) is best known by the DuPont brand name Teflon. Whatever it is called, PTFE is the third slipperiest solid known – the poster child for non-stick, non-reactive, non-friction, non-conducting, high-temperature, and generally high-performing polymers. Silicone also has a nearly non-bondable surface – if you try to paint a silicone sealant, it simply pops off as the paint dries. In particular, creating a strong bond between PTFE and silicone has never been accomplished, even in the chemical laboratory. Until now. Read More
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