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Spinning up antibacterial silver on glass

The antibacterial effects of silver are well established. Now, researchers at Yonsei University in Seoul, Republic of Korea, have developed a technique to coat glass with a layer of silver ions that can prevent growth of pathogenic bacteria including Escherichia coli, Salmonella typhimurium and Campylobacter jejuni. The technology could be used to protect medical equipment and be particularly useful for applications in disaster recovery and the military environment.

Posted: Jun 27th, 2013

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Computational chemistry draws the 'interactive cartographic map' of enzymes during chemical reactions

Knowing how enzymes work is key to control the chemical processes involving these biological macromolecules that have countless applications in the fields of medicine and industry. Computational chemistry has enabled to draw for the first time the enzymes 'cartographic map' during the catalysis process, including the moment when they are at the point of maximum energy on the way from reactants to products that takes only a femtosecond.

Posted: Jun 27th, 2013

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Rund zwei Millionen Euro für die Kieler Nanowissenschaften

Physikerinnen und Physiker der Christian-Albrechts-Universität zu Kiel (CAU) haben rund zwei Millionen Euro für drei Verbundprojekte am Deutschen Elektronen-Synchrotron (DESY) in Hamburg eingeworben. Mit den Fördergeldern des Bundesministeriums für Bildung und Forschung (BMBF) wollen die Wissenschaftlerinnen und Wissenschaftler weltweit einzigartige Hochleistungsinstrumente für Experimente mit brillanter Röntgenstrahlung entwickeln.

Posted: Jun 27th, 2013

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Magnetoelektrische Kopplung - Duett auf Nano-Art

Ferroelektrische und -magnetische Eigenschaften voneinander abhängig in einem System zu nutzen, daran arbeiten Wissenschaftler schon seit langem. Einem Team vom Center for Nanointegration (CENIDE) der Universität Duisburg-Essen ist dies jüngst in einem Komposit-System gelungen.

Posted: Jun 27th, 2013

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Ingested nanoparticle toxicity

Ingestion of commonly encountered nanoparticles at typical environmental levels is unlikely to cause overt toxicity, according to US researchers. Nevertheless there is insufficient evidence to determine whether chronic exposures could lead to subtle alterations in intestinal immune function, protein profiles, or microbial balance.

Posted: Jun 26th, 2013

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Quantum engines must break down

Our present understanding of thermodynamics is fundamentally incorrect if applied to small systems and need to be modified, according to new research.

Posted: Jun 26th, 2013

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Microscopy technique could help computer industry develop nanoscale 3-D components

A technique developed several years ago at the National Institute of Standards and Technology (NIST) for improving optical microscopes now has been applied to monitoring the next generation of computer chip circuit components, potentially providing the semiconductor industry with a crucial tool for improving chips for the next decade or more.

Posted: Jun 26th, 2013

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