In a case of the Goldilocks story retold at the molecular level, scientists at the U.S. Department of Energy's Argonne National Laboratory and Northwestern University have discovered a new path to the development of more stable and efficient catalysts.
The National Research Council of Thailand (NRCT) announced The National Research Council Awards 2012 in which Dr. Rawiwan Laocharoensuk from NANOTEC Nanomolecular Sensor Lab was one of the recipients for the Outstanding Doctoral Thesis Award.
When it comes to high-temperature superconductors, a class of materials called cuprates is king, and it is science's ongoing quest to determine their exact physical subtleties. Cornell physicists and materials scientists have now verified that cuprates respond differently when adding electrons versus removing them, resolving a central issue about the compounds' most fundamental properties.
Researchers created a biophysical model of the response of a Gram-positive bacterium to the formation of a hole in its cell wall. Then they used experimental measurements to validate the theory, which predicted that a hole in the bacteria cell wall larger than 15 to 24 nanometers in diameter would cause the cell to lyse, or burst. These small holes are approximately one-hundredth the diameter of a typical bacterial cell.
Researchers grew polycrystalline graphene by chemical vapor deposition (CVD), using scanning tunneling microscopy and spectroscopy for analysis, to examine at the atomic scale grain boundaries on a silicon wafer.
Researchers at North Carolina State University have come up with a technique to embed needle-like carbon nanofibers in an elastic membrane, creating a flexible "bed of nails" on the nanoscale that opens the door to development of new drug-delivery systems.
Intelligence is not only a matter of humans and animals. Scientists speak also of intelligent molecules. The latter directly react to external stimuli and change reversibly their shape. NIM physicists demonstrate the process for the first time with a single molecule.
Researchers from Toulouse (CEMES) and Ohio University have developed a molecular motor 2 nm in diameter. This motor can be made to rotate in a clockwise or anticlockwise direction by selec tive inelastic electron tunnelling.