Chemistry in the News
New design brings world's first solar battery to performance milestone
Sat, 01 Aug 2015 08:26:47 EDT
After debuting the world's first solar air battery last fall, researchers have now reached a new milestone. They report that their patent-pending design -- which combines a solar cell and a battery into a single device -- now achieves a 20 percent energy savings over traditional lithium-iodine batteries.
Transparent, electrically conductive network of encapsulated silver nanowires
Fri, 31 Jul 2015 10:37:03 EDT
A transparent electrode with high electrical conductivity has been developed for solar cells and other optoelectronic components -- that uses minimal amounts of material. It consists of a random network of silver nanowires that is coated with aluminium-doped zinc oxide. The novel electrode requires about 70 times less silver than conventional silver grid electrodes, but possesses comparable electrical conductivity.
Protein machines make fluctuating flows unconsciously
Fri, 31 Jul 2015 10:36:48 EDT
Protein machines, regardless of their specific functions, can collectively induce fluctuating hydrodynamic flows and substantially enhance the diffusive motions of particles in the cell, an international research group has demonstrated.
Heating and cooling with light leads to ultrafast DNA diagnostics
Fri, 31 Jul 2015 07:02:15 EDT
Researchers used LEDs and a thin film of gold to turbocharge the heating and cooling cycles of the PCR test so results are ready in minutes, not hours. The innovation greatly expands the clinical and research applications of a workhorse lab tool used in forensics, medical diagnostics and more.
How to look for a few good catalysts
Thu, 30 Jul 2015 16:24:44 EDT
Two key physical phenomena take place at the surfaces of materials: catalysis and wetting. A catalyst enhances the rate of chemical reactions; wetting refers to how liquids spread across a surface. Non-wetting surfaces promote chemical reaction rates, new research confirms.