A team of scientists from Tyndall National Institute at University College Cork and the National University of Singapore have designed and fabricated ultra-small devices for energy-efficient electronics. By finding out how molecules behave in these devices, a ten-fold increase in switching efficiency was obtained by changing just one carbon atom.
Carbon nanotubes resemble asbestos fibers in their form. Unfortunately, long, pure nanotubes also seem to have asbestos-like pathogenicity. A European research team has now reported that chemical modifications can alleviate this problem if the modification makes their surface more water-friendly and reduces the effective length of the tubes.
By using tiny liquid lenses that self-assemble around microscopic objects, a team from UCLA's Henry Samueli School of Engineering and Applied Science has created an optical microscopy method that allows users to directly see nanoscale objects.
Quantitative nanoindentation experiments showed an increase of yield strength from 1.64 to 2.29 GPa during the multiple loading-unloading cycles. Their study provides both the evidence to explain the roots of work hardening at small length scales and the insight for future design of ductile nanocrystalline metals.
Researchers from the NIST Center for Nanoscale Science and Technology and the Johns Hopkins University have developed a technique to reliably manipulate hundreds of individual micrometer-sized colloid particles to create crystals with controlled dimensions.
Scientists at Aalto University, Finland, have demonstrated results that show a huge improvement in the light absorption and the surface passivation on silicon nanostructures. This has been achieved by applying atomic layer coating.