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Nanofibers help scientists study brain cancer

Cancer and engineering scientists at The Ohio State University are collaborating to create molecule-sized nanofibers to mimic the structure of white matter in the brain. By combining nanotechnology with a medically-approved polymer, researchers are able to study the invasive behavior of tumor cells.

Posted: Aug 3rd, 2010

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Carbon Nanotubes als Spinfilter

Alle Elektronen tragen ein magnetisches Moment, Spin genannt, das grundsaetzlich in zwei Richtungen zeigen kann. Setzt man geeignete Nano-Roehrchen aus Kohlenstoff einem hohen Magnetfeld aus, so lassen sie bei einem bestimmten Wert nur Elektronen mit einer Spinrichtung durchfliessen. Erhoeht man das Magnetfeld weiter, so werden nur Elektronen mit der anderen Spinrichtung durchgelassen.

Posted: Aug 3rd, 2010

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Iron oxide nanoparticles becoming tools for brain tumor imaging and treatment

Tiny particles of iron oxide could become tools for simultaneous tumor imaging and treatment, because of their magnetic properties and toxic effects against brain cancer cells. In mice, researchers have demonstrated how these particles can deliver antibodies to implanted brain tumors, while enhancing tumor visibility via magnetic resonance imaging (MRI).

Posted: Aug 3rd, 2010

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New solar energy conversion process could revamp solar power production

A new process that simultaneously combines the light and heat of solar radiation to generate electricity could offer more than double the efficiency of existing solar cell technology. The process, called 'photon enhanced thermionic emission', or PETE, could reduce the costs of solar energy production enough for it to compete with oil as an energy source.

Posted: Aug 2nd, 2010

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