News tagged with nanotechnology

Related topics: nanoparticles · cells · molecules · cancer cells · nanometers

Chinese doctor builds new nose on man's forehead

A surgeon in China says he has constructed an extra nose out of a man's rib cartilage and implanted it under the skin of his forehead to prepare for a transplant in probably the first operation of its kind.

Sep 28, 2013
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A nanotech fix for nicotine dependence

A chemical component present in the nightshade family of plants is one of the world's most tenaciously addictive substances. It is the nicotine contained in tobacco and found in high concentrations in cigarettes. Smoking ...

Jul 02, 2013
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FDA proposes rules for nanotechnology in food

(AP) -- Regulators are proposing that food companies that want to use tiny engineered particles in their packaging may have to provide extra testing data to show the products are safe.

Apr 21, 2012
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Nanotechnology, shortened to "Nanotech", is the study of the control of matter on an atomic and molecular scale. Generally nanotechnology deals with structures of the size 100 nanometers or smaller, and involves developing materials or devices within that size. Nanotechnology is very diverse, ranging from novel extensions of conventional device physics, to completely new approaches based upon molecular self-assembly, to developing new materials with dimensions on the nanoscale, even to speculation on whether we can directly control matter on the atomic scale.

There has been much debate on the future of implications of nanotechnology. Nanotechnology has the potential to create many new materials and devices with wide-ranging applications, such as in medicine, electronics, and energy production. On the other hand, nanotechnology raises many of the same issues as with any introduction of new technology, including concerns about the toxicity and environmental impact of nanomaterials , and their potential effects on global economics, as well as speculation about various doomsday scenarios. These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted.

This text uses material from Wikipedia, licensed under CC BY-SA

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