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Nanowires

Gold nanomesh conductor could pave the way for truly flexible electronics

We're coming just that much closer to electronic devices such as TV screens that can be rolled up in a tube, or phones that can be folded up and stuffed in a pocket. Scientists at the University of Houston have created a gold nanomesh material that is conductive, transparent and flexible – a combination that they claim has never before been achieved.Read More

Science

Nanowires become signature- and fingerprint-reading LEDs

What do electronic signatures, fingerprint scans and touch-sensitive robot skin have in common? All three technologies may soon be advancing, thanks to a new system that turns an array of zinc oxide nanowires into tiny LEDs. Each wire illuminates in response to externally-applied mechanical pressure. By analyzing the resulting mosaic of miniscule points of light, a computer is able to produce a high-resolution map of the pressure-applying surface. Read More

Science

"Microscopic shag carpet" may help bones bond with implants

Like a lot of things, bone cells grow and reproduce quicker on textured surfaces than on smooth ones. With that in mind, a team of scientists from Ohio State University are developing a new coating that could allow implants such as artificial hips to bond with bones faster. That coating is described as “a microscopic shag carpet made of tiny metal oxide wires.” Read More

Science

Silicon nanoparticles used to create a super-performing battery

In some peoples’ opinion, electric cars won’t become truly viable until their batteries offer a lot more driving range, and can be recharged much more quickly than is currently possible. Well, those people may soon be getting their wish. Scientists at the University of Southern California have developed a new type of lithium-ion battery, that they claim holds three times as much energy as a conventional li-ion, and can be recharged in just ten minutes.Read More

Science

One step closer to cyborgs – scientists create biological tissue with embedded wiring

Under its human skin, James Cameron’s Terminator was a fully-armored cyborg built out of a strong, easy-to-spot hyperalloy combat chassis – but judging from recent developments, it looks like Philip K. Dick and his hard-to-recognize replicants actually got it right. In a collaboration between Harvard, MIT and Boston Children's Hospital, researchers have figured out how to grow three-dimensional samples of artificial tissue that are very intimately embedded within nanometer-scale electronics, to such an extent that it is hard to tell where one ends and the other begins. It could lead to a breakthrough approach to studying biological tissues on the nanoscale, and may one day be used as an efficient, real-time drug delivery system – and perhaps, why not, even to build next-generation androids.Read More

Electronics

Silver nanowire conductors could mean better stretchable electronics

Earlier this year, a team led by North Carolina State University’s Dr. Yong Zhu reported success in creating elastic conductors made from carbon nanotubes. Such conductors could be used in stretchable electronics, which could in turn find use in things like bendable displays, smart fabrics, or even touch-sensitive robot skin. Now, he has made some more elastic conductors, but this time using silver nanowires – according to Zhu, they offer some big advantages over carbon nanotubes.Read More

Science

"Decorated" nanowires could lead to better batteries and solar cells

Higher-density batteries, more efficient thin-film solar cells, and better catalysts may all soon be possible, thanks to a new technique that allows nanowires to be “decorated” with nanoparticles. Using the novel technology, scientists from Stanford University have been able to festoon the outside surfaces of nanowires with intricate chains of metal oxide or noble metal nanoparticles, thereby drastically boosting the effective surface area of the nanowires. Other researchers have previously tried to achieve the same end result, but apparently never with such success.Read More

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