Researcher from the University of West Florida has designed an ultracapacitor that maintains a near steady voltage. The novel constant-voltage desig may one day help ultracapacitors find new uses in low-voltage electric vehicle circuits and handheld electronics.
KU Leuven researcher Ventsislav Valev and an international team of colleagues have developed a new method for manipulating light at the nanoscale in order to optically detect single molecules. By shining circularly polarised light on a gold, square-ring shaped nanostructure, the researchers were able to 'activate' the entire surface of the nanostructure, thereby significantly increasing the opportunity for interaction with molecules.
Using high-power X-ray imaging of an actual working battery, a Stanford-SLAC team discovered that sulfur particles in the cathode largely remain intact during discharge. Their results could help scientists find new ways to develop commercially viable lithium-sulfur batteries for electric vehicles.
An international team of scientists, including chemist Xiao Cheng Zeng of the University of Nebraska-Lincoln, has created what is in effect a nanoscale sieve that is very selective in what it will allow to pass through -- and performs in much the same way as the potassium ion channels that are vital components of virtually all living cells.
Scientists have overcome key design hurdles to expand the potential uses of nanopores and nanotubes. The creation of smart nanotubes with selective mass transport opens up a wider range of applications for water purification, chemical separation and fighting disease.
The IEEE Photonics Society's 2012 International Group IV Photonics Conference is a single-track conference that will feature presentations focused on silicon photonics integration, applications and manufacturing technology; photonic devices and nanostructures; as well as advanced materials and fabrication technologies.