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Spaser - groundbreaking nano-laser for medicine and electronics

The physical length of an ordinary laser cannot be less than one half of the wavelength of its light, which limits its application in many industries. Now the Spaser, a new invention developed in part by Tel Aviv University, can be as small as needed to fuel nanotechnologies of the future.

Jan 12th, 2011

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Scaling up: The future of nanoscience

Fifty-one years after Richard Feynman envisioned nanoscience in his famous address, 'Plenty of Room at the Bottom', four extraordinary researchers joined in a roundtable discussion of the future of nanoscience.

Jan 12th, 2011

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Nanofilters for molecule selection by size and substance

Separating molecules is an important part of many manufacturing and testing processes, including pharmaceutical production and some biomedical tests. One way of carrying out such separation is by using nanofilters - materials with holes of a precisely controlled tiny diameter, to allow molecules up to that size to pass through while blocking any that are larger. But a new system devised by researchers at MIT could add an important new capability: a way to selectively filter out molecules of the same size that have different chemical properties.

Jan 12th, 2011

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Free white paper: Why and how to communicate your research

Frank Burnett, Emeritus Professor of Science Communication at the University of the West of England, has written a concise 26 page Guide designed to help scientists, engineers and technologists develop effective, attention-grabbing ways of communicating what they do and why they do it to public audiences.

Jan 12th, 2011

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Flares on the move: Nanoparticle test kit shows how nanoparticles of different size disperse in tumor tissue

Nanoparticles play a significant role in the development of future diagnostic and therapeutic techniques for tumors, for example as transporters for drugs or as contrast agents. Absorption and dispersion of nanoparticles in tumor tissue depend strongly on particle size. In order to systematically study this, scientists at the Massachusetts Institute of Technology and Harvard Medical School have now produced a set of fluorescent nanoparticles of various diameters between 10 and 150 nm.

Jan 12th, 2011

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Virus killer gets supercharged with nanoparticles

A simple technique to make a common virus-killing material significantly more effective is a breakthrough from the Rice University labs of Andrew Barron and Qilin Li. Rather than trying to turn the process into profit, the researchers have put it into the public domain.

Jan 12th, 2011

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Coiled nanowires may hold key to stretchable electronics

Researchers at North Carolina State University have created the first coils of silicon nanowire on a substrate that can be stretched to more than double their original length, moving us closer to incorporating stretchable electronic devices into clothing, implantable health-monitoring devices, and a host of other applications.

Jan 11th, 2011

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Polymer membranes with molecular-sized channels that assemble themselves

Many futurists envision a world in which polymer membranes with molecular-sized channels are used to capture carbon, produce solar-based fuels, or desalinate sea water, among many other functions. This will require methods by which such membranes can be readily fabricated in bulk quantities. A technique representing a significant first step down that road has now been successfully demonstrated.

Jan 11th, 2011

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Trapped sunlight cleans water

A ew system that combines two different technologies proposes to break down contaminants using the cheapest possible energy source, sunlight. Microfluidics - transporting water through tiny channels - and photocatalysis - using light to break down impurities - come together in the science of optofluidics.

Jan 11th, 2011

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