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Nanotechnology General News

The latest news from academia, regulators
research labs and other things of interest

Forschung: Sicherer Umgang mit Nanomaterialien

Mehr als 200 Interessierte aus Betrieben und Behoerden nahmen am Dialog-Forum 'Nanomaterialien am Arbeitsplatz' teil, das die Bundesanstalt fuer Arbeitsschutz und Arbeitsmedizin (BAuA) heute in Dortmund veranstaltete. Im Mittelpunkt der Veranstaltung standen Forschungsergebnisse und praktische Hilfestellungen der BAuA, die zum verantwortungsvollen Umgang mit Nanomaterialien am Arbeitsplatz beitragen.

Posted: Jan 17th, 2011

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Controlled heating of gold nanoparticles

Tiny gold particles are good for transferring heat and could be a promising tool for creating localized heating in, for example, a living cell. In new experiments, researchers at the Niels Bohr Institute have measured the temperature of nano-sized gold particles with extreme precision and have examined their ability to melt the lipid membranes surrounding cells, paving the way for dissolving sick cells.

Posted: Jan 17th, 2011

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AGS zu Nanomaterialien

Der Ausschuss fuer Gefahrstoffe (AGS) hat bei seiner Sitzung im November 2010 den vom AK Nanomaterialien des UA I des AGS erarbeiteten Sachstandsbericht zum Thema Nanomaterialien beraten und beschlossen, mit der Erarbeitung einer Bekanntmachung zur Umsetzung der Vorgaben der Gefahrstoffverordnung (GefStoffV) bei Taetigkeiten mit Nanomaterialien zu beginnen.

Posted: Jan 17th, 2011

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A first look at flight in 2025

An 18-month NASA research effort to visualize the passenger airplanes of the future has produced some ideas that at first glance may appear to be old fashioned. Instead of exotic new designs seemingly borrowed from science fiction, familiar shapes - but built with high-tech materials - dominate the pages of advanced concept studies.

Posted: Jan 16th, 2011

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'Electron vortices' have the potential to increase conventional microscopes' capabilities

Electron microscopes are among the most widely used scientific and medical tools for studying and understanding a wide range of materials, from biological tissue to miniature magnetic devices, at tiny levels of detail. Now, researchers at the National Institute of Standards and Technology (NIST) have found a novel and potentially widely applicable method to expand the capabilities of conventional transmission electron microscopes (TEMs). Passing electrons through a nanometer-scale grating, the scientists imparted the resulting electron waves with so much orbital momentum that they maintained a corkscrew shape in free space.

Posted: Jan 14th, 2011

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Researcher uses living cells to create 'biotic' video games

Stanford physicist Ingmar Riedel-Kruse has begun developing 'biotic games' involving paramecia and other living organisms. He hopes the games lead to advances in education and crowd-sourcing of laboratory research while helping to raise the level of public discourse on bio-related issues.

Posted: Jan 14th, 2011

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Nanoparticles for a greener path for the production of a vital chemical

Nanoparticles of gold and palladium (Au-Pd) could lead to a more efficient and environmentally friendly way of producing benzyl benzoate, a chemical compound used widely in the food, pharmaceutical and chemical industries whose applications include a fixative for fragrances, a food additive and a solvent for chemical reactions.

Posted: Jan 14th, 2011

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Bacterial minicompass uses nanomagnets

Magnetotactic bacteria orient themselves in their environment with the aid of tiny compasses, consisting of chains of membrane sacs called magnetosomes, each containing a single nanomagnet.

Posted: Jan 14th, 2011

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Simulations explain the peculiar nature of molecular hydrogen vibration under high pressure

Most of our Universe consists of hydrogen atoms, which are often found under extraordinarily high pressure as high as tens of millions of times the atmospheric pressure of Earth. Understanding the exotic physics of such a high-pressure regime will contribute to our understanding of planet formation, hydrogen storage, room temperature superconductivity and other fields, explains Toshiaki Iitaka from the RIKEN Advanced Science Institute in Wako.

Posted: Jan 14th, 2011

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Nano-Leuchtkugeln auf Wanderschaft

Nanopartikel spielen eine wesentliche Rolle bei der Entwicklung zukuenftiger diagnostischer und therapeutischer Methoden fuer Tumorerkrankungen, beispielsweise als Transporter fuer Wirkstoffe oder als Kontrastmittel. Aufnahme und Verteilung von Nanopartikeln im Tumorgewebe haengen dabei stark von der Partikelgroesse ab. Um dies systematisch untersuchen zu koennen, haben Wissenschaftler jetzt einen Satz fluoreszierender Nanopartikel verschiedener Durchmesser zwischen 10 und 150 nm hergestellt.

Posted: Jan 14th, 2011

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Physicists observe exotic state in an unconventional superconductor

A new fractional vortex state observed in an unconventional superconductor may offer the first glimpse of an exotic state of matter predicted theoretically for more than 30 years. University of Illinois physicists, led by Raffi Budakian, describe their observations of a new fractional vortex state in strontium ruthenium oxide (SRO).

Posted: Jan 13th, 2011

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