Nanocrystals
When we think of crystals, most of us probably either picture spiky things like snowflakes, or cube-shaped objects like grains of sugar. Researchers from the Harvard School of Engineering and Applied Sciences, however, have recently coaxed barium carbonate crystals to grow into very miniature replicas of soft, curved flowers. Read More
Replicating hardest known biomaterial could lead to better solar cells and batteries
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
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
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