Water and ice may not be among the first things that come to mind when you think about single-walled carbon nanotubes, but a Japan-based research team hoping to get a clearer understanding of the phase behavior of confined water in the cylindrical pores of carbon nanotubes zeroed in on confined water's properties and made some surprising discoveries.
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A research team led by Brown University reports some promising results for earlier diagnosis of hepatocellular carcinoma, the most common cancer to strike the liver. More than 500,000 people worldwide, concentrated in sub-Saharan Africa and Southeast Asia, are diagnosed with it yearly. Most of those afflicted die within six months.
University of Minnesota engineering researchers in the College of Science and Engineering have recently discovered a new alloy material that converts heat directly into electricity. This revolutionary energy conversion method is in the early stages of development, but it could have wide-sweeping impact on creating environmentally friendly electricity from waste heat sources.
For nine days this month, 30 graduate students have been learning how to make nano-sized devices. In six three-hour lab sessions, students learned how to operate equipment and perform the processes crucial to fabricating nano-scale devices.
Dutch and Swiss researchers have developed a biomimetic nanopore that offers a sophisticated test and measurement platform for the way proteins enter the nucleus of a cell. This study provides evidence of how a biomimetic nuclear pore can be created to monitor how single proteins move across the pore.
Hessel Castricum from the University of Amsterdam has developed a versatile membrane that is capable of separating gas and liquid mixtures in an energy-efficient manner. The new membrane can probably be employed under industrial conditions on a large scale in the future. This has not been possible until now, because virtually all membranes developed so far are insufficiently stable.
Scientists have developed a programmable sub-microscopic molecular machine made of synthetic DNA that moves between track locations separated by 6nm. The robot, a short strand of DNA, follows instructions programmed into a set of fuel molecules determining its destination.
Scientists have developed a way to transform ordinary sand - a mainstay filter material used to purify drinking water throughout the world - into a "super sand" with five times the filtering capacity of regular sand.
Mit dem ASTEM (Austrian Scanning Transmission Electron Microscope) koennen Wissenschafter am Zentrum fuer Elektronenmikroskopie Graz sowie am Institut fuer Elektronenmikroskopie und Feinstrukturforschung der TU Graz kuenftig in voellig neue Dimensionen vordringen.
Vertical scanning interferometry is a well-established zero-contact surface characterization technique, but the analysis involved in interpreting the data is complex and computationally intensive. Wee Keat Chong at the A*STAR Singapore Institute of Manufacturing Technology and co-workers have now developed a computationally efficient model for this technique.
A team of researchers has made nano-sized sensors that detect volatile organic compounds - harmful pollutants released from paints, cleaners, pesticides and other products - that offer several advantages over today's commercial gas sensors, including low-power room-temperature operation and the ability to detect one or several compounds over a wide range of concentrations.