MIT civil engineers have for the first time identified what causes the most frequently used building material on earth - concrete - to gradually deform, decreasing its durability and shortening the lifespan of infrastructures such as bridges and nuclear waste containment vessels.
By squeezing a typical metal alloy at pressures hundreds of thousands of times greater than normal atmospheric pressure, scientists have created a material that does not expand when heated, as does nearly every normal metal, and acts like a metal with an entirely different chemical composition.
Researchers at Arizona State University are working to create lower cost PEMFCs by directly growing carbon nanotubes on carbon paper substrates, otherwise known as the gas diffusion layer, rather than spherical carbon particles and then deposit platinum nanoparticles onto the surface of the nanotubes.
Finding reliable information about products on the European market which currently contain nanomaterials is becoming increasingly difficult, according to high-level experts addressing a meeting of consumer groups from the EU and US.
A case study in the June 2009 issue of Environmental Toxicology and Chemistry examines changes and transport in aluminum nanoparticles, currently used in energetics, alloys, coatings, and sensors, when they are exposed to relevant environmental conditions.
Move over, silicon - it may be time to give the Valley a new name. Physicists at the Department of Energy's SLAC National Accelerator Laboratory and Stanford University have confirmed the existence of a type of material that could one day provide dramatically faster, more efficient computer chips.
On June 17, a panel of representatives from various sectors will discuss the major challenges to future IP developments related to synthetic biology, identify key steps to addressing these challenges, and examine a number of current tensions surrounding issues of use and ownership.
Robert S. Schwartz, MD, medical director of the Minnesota Cardiovascular Research Institute, Minneapolis Heart Institute Foundation, will describe the new paradigm of the biocompatibility of intravascular devices during his keynote presentation at the leading conference on materials for medical devices.
A new report prepared for the Investor Environmental Health Network (IEHN) will outline disturbing parallels between asbestos and nanotechnology in order to illustrate the eight needed steps that the Financial Accounting Standards Board (FASB) and the Securities Exchange Commission (SEC) should take to improve disclosures made to investors.
Researchers have constructed a light-emitting transistor that has set a new record with a signal-processing modulation speed of 4.3 gigahertz, breaking the previous record of 1.7 gigahertz held by a light-emitting diode.