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Nanotechnology General News

The latest news from academia, regulators
research labs and other things of interest

Fingerprints tell all thanks to gold nanoparticles

It has long been well established that fingerprints can be used to identify people or help convict them of crimes. Things have gone a lot further now: fingerprints can be used to show that a suspect is a smoker, takes drugs, or has handled explosives, among other things. In the journal Angewandte Chemie, Pompi Hazarika and David Russell describe the noteworthy progress that has recently been made.

Posted: Mar 29th, 2012

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Physicists mix two lasers to create light at many frequencies

A team of physicists at UC Santa Barbara has seen the light, and it comes in many different colors. By aiming high- and low-frequency laser beams at a semiconductor, the researchers caused electrons to be ripped from their cores, accelerated, and then smashed back into the cores they left behind. This recollision produced multiple frequencies of light simultaneously.

Posted: Mar 28th, 2012

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Nanotechnology and your views

Dr Robert Doubleday, Head of Research at the Centre for Science and Policy at the University of Cambridge, is helping to coordinate a European online debate about developments in nanotechnology. This process of public debate is designed to generate questions about nanotechnology and encourage academics to address some of these questions through research.

Posted: Mar 28th, 2012

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Transparent memory chips are coming

Want a see-through cellphone you can wrap around your wrist? Such a thing may be possible before long, according to Rice University chemist James Tour, whose lab has developed transparent, flexible memories using silicon oxide as the active component.

Posted: Mar 28th, 2012

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Study helps assess nanotechnology's impact on sustainable growth

In the United States alone, government and private industry together invest more than $3 billion per year in nanotechnology research and development, and globally the total is much higher. What will be the long-run economic returns from these investments, not only in new jobs and product sales, but also from improvements in sustainability? Georgia Institute of Technology researchers Philip Shapira and Jan Youtie helped answer that question through research presented March 27th at the International Symposium on Assessing the Economic Impact of Nanotechnology held in Washington, D.C.

Posted: Mar 28th, 2012

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Popcorn-shaped gold particles gang up on Salmonella

How about a test that identifies Salmonella in five minutes, so that shipments of lettuce can be confiscated before they reach the table? Scientists today described development and successful testing of just such a test in a presentation here at the 243rd National Meeting and Exposition of the American Chemical Society (ACS).

Posted: Mar 28th, 2012

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Nanoparticle capsule for removing radioactive contamination from milk, fruit juices

Amid concerns about possible terrorist attacks with nuclear materials, and fresh memories of environmental contamination from the 2011 Fukushima Daiichi nuclear disaster in Japan, scientists today described development of a capsule that can be dropped into water, milk, fruit juices and other foods to remove more than a dozen radioactive substances.

Posted: Mar 28th, 2012

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Writing graphene circuitry with ion 'pens'

The unique electrical properties of graphene have enticed researchers to envision a future of fast integrated circuits made with the one-carbon-atom-thick sheets, but many challenges remain on the path to commercialization. Scientists from the University of Florida have recently tackled one of these challenges - how to reliably manufacture graphene on a large scale.

Posted: Mar 27th, 2012

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