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New online map shows environmental cleanup sites that use nanomaterials

The map shows which nanomaterials have been used where and includes detailed information on the contaminants treated and the nature of the treatment. It provides a unique source of information on the intentional release of nanomaterials into the environment to treat contaminated ground and water.

Posted: Jul 8th, 2009

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New effort to monitor the effects of nanomaterials on the environment

University of Alberta biological sciences professor Gregg Goss is on the front line of a new effort to monitor the effects of nanomaterials on the environment. Goss will help lead a team of 19 researchers from across the country in a three-year study of the toxicity of nanomaterials in aquatic environments.

Posted: Jul 8th, 2009

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Dye-doped DNA nanofibers emit white light

A team of researchers at the University of Connecticut and the US Air Force Research Laboratory has now successfully used the electrospinning of DNA complexes to produce nanofibers that incorporate two different fluorescing dyes in such a way that energy can efficiently be transferred from one dye to the other. The color of the resulting fluorescence can be controlled by means of the ratio of the two dyes.

Posted: Jul 8th, 2009

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Nanoelektronik mit molekularen Stromleitern

Einem internationalen Forscherteam ist ein Durchbruch in der Nanoelektronik gelungen: Mit einer ungeraden Anzahl an Elektronen sind Moleküle, die mit Metallelektroden im Kontakt sind, nämlich schon im niedrigen Spannungsbereich extrem leitfähig.

Posted: Jul 8th, 2009

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Filling fullerenes with radio-active material for radiation therapy

Virginia Tech chemistry Professor Harry C. Dorn, Emory and Henry College chemistry Professor James Duchamp, and Panos Fatouros, professor and chair of the Division of Radiation Physics and Biology at the Virginia Commonwealth University School of Medicine have co-invented a hands-off process for filling fullerenes with radio-active material.

Posted: Jul 7th, 2009

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Normal cells far from cancer give nanosignals of trouble

A new Northwestern University-led study of human colon, pancreatic and lung cells is the first to report that cancer cells and their non-cancerous cell neighbors, although quite different under the microscope, share very similar structural abnormalities on the nanoscale level.

Posted: Jul 7th, 2009

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One step closer to an artificial nerve cell

Scientists at the Swedish medical university Karolinska Institutet and Linköping University are well on the way to creating the first artificial nerve cell that can communicate specifically with nerve cells in the body using neurotransmitters.

Posted: Jul 7th, 2009

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New metamaterial brings us nearer to the dream of invisibility

A group of researchers from the Department of Physics at UAB have designed a device, called a dc metamaterial, which makes objects invisible under certain light by making the inside of the magnetic field zero but not altering the exterior field. The device, which up to date has only been studied in theoretical works, thus acts as an invisibility cloak, making the object completely undetectable to these waves.

Posted: Jul 7th, 2009

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Q is for quantum and "Q-life"

Features in the July issue of Physics World include a close look at how physics is informing our understanding of cells and of the brain, while Paul Davies, a physicist, astrobiologist and director of BEYOND: Center for Fundamental Concepts in Science at Arizona State University, suggests there are tentative signs that life itself may have arisen as a result of physicists' long-cherished theory of quantum mechanics.

Posted: Jul 7th, 2009

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Environmental Working Group releases their 2009 Sunscreen Report

The Environmental Working Group (EWG), a United States-based non-governmental organization that works to expose threats to health and the environment, has released their 2009 Sunscreen Report. The investigators expected to recommend against the use of micronized and nano-sized zinc oxide and titanium dioxide sunscreen, but after months of research and analysis of nearly 400 peer-reviewed studies, they found themselves recommending some sunscreens that may contain nanoparticles.

Posted: Jul 7th, 2009

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