Physicists recently developed a new theoretical model to explain how the Pauli exclusion principle can be violated and how, under certain rare conditions, more than one electron can simultaneously occupy the same quantum state.
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.
Ecological scientists will discuss findings on human-ecosystem interactions - from the effects of nanomaterials on plant growth to the diversity of insect species on green roofs, and even communities of airborne microbes in hospital buildings - at the Ecological Society of America's 95th Annual Meeting in Pittsburgh from August 1-6, 2010.
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.
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).
An innovation that can help scientists observe a reaction moving at greater than 10 meters per second, with a few nanometers spatial resolution, is a feat some would say is nearly impossible. But not the Lawrence Livermore team of scientists who developed the dynamic transmission electron microscope (DTEM).
In the quest for efficient, cost-effective and commercially viable fuel cells, scientists at Cornell University's Energy Materials Center have discovered a catalyst and catalyst-support combination that could make fuel cells more stable, conk-out free, inexpensive and more resistant to carbon monoxide poisoning.
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.