Nano Technology News

September 10, 2013

Size Matters as Nanocrystals Go Through Phases
Berkeley CA (SPX) Sep 10, 2013
Understanding what happens to a material as it undergoes phase transformations - changes from a solid to a liquid to a gas or a plasma - is of fundamental scientific interest and critical for optimizing commercial applications. For metal nanocrystals, assumptions about the size-dependence of phase transformations were made that now need to be re-evaluated. A team of researchers at the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) has demonstrated that as me ... read more

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Researchers figure out how to 'grow' carbon nanotubes with specific atomic structures Move over, silicon. In a breakthrough in the quest for the next generation of computers and materials, researchers at USC have solved a longstanding challenge with carbon nanotubes: how to actually ... more		New breakthrough for structural characterization of metal nanoparticles Researchers at the Xiamen University in China and the University of Jyvaskyla in Finland have characterized a series of stable 1.5 nm metal nanoclusters containing 44 metal atoms, stabilized by 30 o ... more		Toxic nanoparticles might be entering human food supply Over the last few years, the use of nanomaterials for water treatment, food packaging, pesticides, cosmetics and other industries has increased. For example, farmers have used silver nanoparticles a ... more
				Graphene nanoscrolls are formed by decoration of magnetic nanoparticles Researchers at Umea University, together with researchers at Uppsala University and Stockholm University, show in a new study how nitrogen doped graphene can be rolled into perfect Archimedean nano ... more		New tests for determining health and environmental effects of nanomaterials A group of international experts from government, industry and academia have concluded that alternative testing strategies (ATSs) that don't rely on animals will be needed to cope with the wave of n ... more

US Navy History of Human Spaceflight Conference

'Groovy' hologram creates strange state of light at visible and invisible wavelengths Applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have demonstrated that they can change the intensity, phase, and polarization of light rays using a hologram-like ... more		First time: NJIT researchers examine dynamics of liquid metal particles at nanoscale Two NJIT researchers have demonstrated that using a continuum-based approach, they can explain the dynamics of liquid metal particles on a substrate of a nanoscale. "Numerical simulation of ejected ... more		Biochar materials engineered from wood demonstrate mechanical strength comparable to steel Descended From Everyone, Related To No One Extracting fertilizer from air and water		SU Chemists Develop 'Fresh, New' Approach to Making Alloy Nanomaterials Chemists in The College of Arts and Sciences have figured out how to synthesize nanomaterials with stainless steel-like interfaces. Their discovery may change how the form and structure of nanomater ... more
				Heterogeneous nanoblocks give polymers an edge Building structures by mixing lego bricks of two different sizes is child's play. However, studying polymers endowed with an alternating nanostructure made of heterogeneous blocks is anything but st ... more		Size matters in nanocrystals' ability to adsorb release gases More efficient catalytic converters on autos, improved batteries and more sensitive gas sensors are some of the potential benefits of a new system that can directly measure the manner in which nanoc ... more

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