Nano Technology News

September 12, 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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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		Indiana Jones meets George Jetson A team of researchers from Uppsala University in Sweden has designed a microplasma source capable of exciting matter in a controlled, efficient way. This miniature device may find use in a wide rang ... more		Engineers improve electronic devices using molybdenum disulfide A Kansas State University chemical engineer has discovered that a new member of the ultrathin materials family has great potential to improve electronic and thermal devices. Vikas Berry, Willi ... 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

US Navy History of Human Spaceflight Conference

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		'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		Dramatic increase in research funding needed to counter productivity slowdown in farming NASA Researchers Study Coastal Wetlands, Champions of Carbon Capture Planetary Water Limits Pose Challenge to Geological Resource Production		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
				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

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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		Like Water for Batteries Objects made from graphite-such as lithium-ion batteries-are "hydrophobic," meaning that they "dislike" water. For decades this lack of likeability has presented significant challenges in terms of b ... more		Crew launch to ISS paves way for 'stranded' astronauts' return Hera asteroid mission captures images of Mars moon Deimos Norwegian Space Agency partners with Isar Aerospace for satellite launch from Andoya Spaceport		Gold nanoparticles improve photodetector performance The mineral molybdenum disulfide (MoS2), which, when solid, behaves in many ways like grease, has semiconducting properties that make it a promising alternative to silicon or graphene in electronic ... more
				Water clears path for nanoribbon development New research at Rice University shows how water makes it practical to form long graphene nanoribbons less than 10 nanometers wide. And it's unlikely that many of the other labs currently trying to h ... more		Nanotechnology breakthrough is big deal for electronics University of Akron researchers have developed new materials that function on a nanoscale, which could lead to the creation of lighter laptops, slimmer televisions and crisper smartphone visual disp ... more

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	New NIST nanoscale indenter takes novel approach to measuring surface properties Researchers from the National Institute of Standards and Technology (NIST) and the University of North Carolina have demonstrated a new design for an instrument, a "instrumented nanoscale indenter," ... more		Off-grid sterilization with Rice U.'s 'solar steam' Rice University nanotechnology researchers have unveiled a solar-powered sterilization system that could be a boon for more than 2.5 billion people who lack adequate sanitation. The "solar steam" st ... more		Desktop printing at the nano level A new low-cost, high-resolution tool is primed to revolutionize how nanotechnology is produced from the desktop, according to a new study by Northwestern University researchers. Currently, mos ... more		Milikelvins drive droplet evaporation Evaporation is so common that everybody thinks it's a well understood phenomenon. Appearances can be, however, deceptive. Recently, a new, earlier not predicted mechanism of evaporation was discover ... more

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Efficient Production Process for Coveted Nanocrystals		Quantum engines must break down		Ingested nanoparticle toxicity		Nanotechnology holds big potential for NMSU faculty		Sound waves precisely position nanowires

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