Scientists at the A*STAR Institute of Bioengineering and Nanotechnology have developed a green catalytic cycle that could help solve some of the world's biggest challenges - global warming and renewable energy .
The interfaces of complex oxides can show unexpected characteristics distinct from the bulk materials. A targeted manipulation of these properties could yield electronics components with tailored functionalities.
The hands of a clock tell the whole story. Technical factors place limits on the precision of the reading. For physicists, so-called shot noise also imposes such a limit. It occurs for example when electric current has to overcome a barrier. At present, all precision measurements work close to this limit. Physicists from Heidelberg University have now demonstrated that this limit can be surpassed by drawing on concepts from quantum mechanics.
Changes to traditional labour models have reduced some risks in the workplace but created new ones that have yet to be fully understood, according to a new study released Tuesday by the International Labour Organization.
Using a pair of exotic techniques including a molecular-scale version of ice fishing, a team of researchers working at the National Institute of Standards and Technology have developed methods to measure accurately the length of nanopores, the miniscule channels found in cell membranes.
Researchers at the National Institute of Standards and Technology and the Georgia Institute of Technology have demonstrated that atomic scale moire patterns, an interference pattern that appears when two or more grids are overlaid slightly askew, can be used to measure how sheets of graphene are stacked and reveal areas of strain.
But it's not all that computing power that's driving three Iowa State University and Ames Laboratory researchers as they develop computational chemistry at the petascale. Driving their project is the ability to run complex calculations and do better science.
Viele Zellen sind zu aktiver Bewegung faehig. Sie benutzen dazu einen inneren Antrieb mit Recycling-Funktion. Forschern gelang es mittels Kryo-Elektronentomographie, den Vorgang buchstaeblich einzufrieren und den molekularen Motor wirklichkeitsgetreu darzustellen.
A team of scientists working at beamline 9.0.1 of the Advanced Light Source (ALS) at the Lawrence Berkeley National Laboratory has used x-ray diffraction microscopy to make images of whole yeast cells, achieving the highest resolution - 11 to 13 nanometers - ever obtained with this method for biological specimens.
Lower CO2 emissions demand more renewable energy in the energy system. This calls for new solutions that take account of the considerable variations in the amount of wind energy, hydropower, solar energy etc. One of the solutions is a distributed energy system. Here it must be possible to store surplus energy locally using, for example, local SPEC electrolytic cells. The foundation for this technology is being developed by the CASE research project.
Scientists are combining the 3-D capability of MRI with the precision of a technique called atomic force microscopy. This combination enables 3-D visualization of tiny specimens such as viruses, cells and potentially structures inside cells - a 100-million-fold improvement over MRI used in hospitals.
Berkeley Lab scientists have established a revolutionary nanocrystal-making robot, capable of producing nanocrystals with staggering precision. This one-of-a-kind robot provides colloidal nanocrystals with custom-made properties for electronics, biological labeling and luminescent devices.