Nanotechnology News – Latest Headlines

Selenium makes more efficient solar cells

Call it the anti-sunscreen. That's more or less the description of what many solar energy researchers would like to find - light-catching substances that could be added to photovoltaic materials in order to convert more of the sun's energy into carbon-free electricity.

Aug 3rd, 2010

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New inexpensive solar cell design

Scientists at the University of Toronto in Canada have shown that inexpensive nickel can work just as well as gold for one of the critical electrical contacts that gather the electrical current produced by their colloidal quantum dot solar cells.

Aug 3rd, 2010

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Cells use water in nano-rotors to power energy conversion

Researchers from the Max Planck Institute of Biophysics in Frankfurt, and Mount Sinai School of Medicine in New York have provided the first atomic-level glimpse of the proton-driven motor from a major group of ATP synthases, enzymes that are central to cellular energy conversion.

Aug 3rd, 2010

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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.

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.

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).

Aug 3rd, 2010

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