In nature, the bacterium Geobacter sulfurreducens uses these nanowires, called pili, to transport electrons to remote iron particles or other microbes, but the benefits of these wires can also be harnessed by humans for use in fuel cells or bioelectronics. A new study reveals that a core of aromatic amino acids are required to turn these hair-like appendages into functioning electron-carrying biological wires.
The January 2013 issue of Nanotech Insights, a quarterly newsletter dedicated to the field of nanoscience and nanotechnology, is now available from CKMNT. This issue of the newsletter is again packed with information and articles on 52 pages.
A research team from Ulsan National Institute of Science and Technology (UNIST), South Korea have developed high-performance organic phototransistors (OPTs) based on single-crystalline n-channel organic nanowires.
Electrically powered nano-scale lasers have been able to operate effectively only in cold temperatures. Researchers in the field have been striving to enable them to perform reliably at room temperature, a step that would pave the way for their use in a variety of practical applications.
For years, researchers have developed thin films of bismuth telluride - which converts heat into electricity or electricity to cooling - on top of gallium arsenide to create cooling devices for electronics. But while they knew it could be done, it was not clear how - because the atomic structures of those unlikely pair of materials do not appear to be compatible. Now researchers have solved the mystery, opening the door to new research in the field.
Eric Louis has been doing research into advanced multi-layer mirrors used for computer chips, among other things, for more than 20 years. This is nanotechnology in its truest sense, because each layer is only a few nanometres thick. However, this is done on a mega scale, because the mirrors can be up to one metre in size.