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.
The College of Nanoscale Science and Engineering (CNSE) is spending a full week in the community, sharing the excitement of nanotechnology with children and teenagers as part of national "NanoDays 2012."
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.
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.
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.
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.
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).
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.
Using nanoparticles and alternating magnetic fields, University of Georgia scientists have found that head and neck cancerous tumor cells in mice can be killed in half an hour without harming healthy cells.
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.
In light of the expected increase in the application of nanotechnologies to medical devices, the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) is requested to provide a risk assessment of medical devices containing nanomaterials.
Sandia National Laboratories is using its Ion Beam Laboratory (IBL) to study how to rapidly evaluate the tougher advanced materials needed to build the next generation of nuclear reactors and extend the lives of current reactors.