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(9,211 items)
Research & Technology News
Gold Nanoparticles Detect Flu in Minutes
ATHENS, Ga., Aug. 8, 2011 — Physicians and health officials may no longer have to choose between flu tests that are either accurate yet time-consuming or rapid but error-prone, thanks to a new detection method that can identify influenza in minutes at only a fraction of a penny per exam. By coating gold nanoparticles with antibodies that bind to specific strains of the flu virus and then measuring how the particles scatter laser light using a commercially available device, this new technology can not only detect influe...
Light Isolated on a Photonic Chip
PASADENA & SAN DIEGO, Calif., Aug. 5, 2011 — Information systems increasingly are relying on fiber optic networks carrying data via photons instead of electrons, but computer technology still relies heavily on electronic chips, which are slower and more prone to data loss than photonic chips....
Rise of the ARPES: Spectroscopy Technique Sheds Light on Superconductors
SANTA CRUZ, Calif., Aug. 5, 2011 — Through the use of angle-resolved photoemission spectroscopy (ARPES), University of California physicists have reported progress in developing a better understanding of high-temperature superconductors. High-temperature superconductors are...
X-ray Camera Can Acquire 3-D Images of Single Molecules
SWINDON, England, Aug. 5, 2011 — Designed to record bursts of images at an unprecedented 4.5 million frames per second, an innovative x-ray camera will help a major new research facility shed light on the most minute structures of matter. Created at the Science and Technology...
Dream Screens from Graphene
HOUSTON, Aug. 4, 2011 — Graphene-based electrodes developed by a team at Rice University could revolutionize touch-screen displays, solar panels and LED lighting, bringing flexible, transparent electronics closer to reality. Flexible, see-through video screens may be...
High-Speed 3-D Imaging Could Improve Cancer Screening
WASHINGTON, Aug. 4, 2011 — Researchers at MIT have developed an imaging system that enables high-speed, 3-D imaging of microscopic precancerous changes in the esophagus or colon. The new system is based on optical coherence tomography (OCT) techniques, which offer a way to...
Insectlike UAVs to Revolutionize Surveillance
SWINDON, England, Aug. 4, 2011 — Insect-size, camera-bearing unmanned aerial vehicles (UAVs) are being developed that could help in emergency situations considered too dangerous for people or in covert military surveillance missions. Richard Bomphrey, from the University of...
Laser Writes Storage into Graphite Sheets
HOUSTON, Aug. 4, 2011 — Using a CO2 laser, a Rice University team etched patterns of reduced graphite oxide (RGO) into thin sheets of graphite oxide (GO), effectively turning them into free-standing supercapacitors with the ability to store and release energy over...
‘Guide Stars’ Improve Adaptive Optics-Based Tissue Imaging
SANTA CRUZ, Calif., Aug. 3, 2011 — Inspired by adaptive optics (AO) technology for telescopes, researchers are developing novel microscope techniques that can deeply image living cells and tissues. Funded by a $1 million grant from the W.M. Keck Foundation, the new W.M. Keck Center...
Herschel Telescope Detects Oxygen in Space
WASHINGTON, Aug. 3, 2011 — The Herschel Space Observatory’s large telescope and state-of-the-art infrared detectors have provided the first confirmed finding of oxygen molecules in space. Individual atoms of oxygen are common in space, particularly around massive...
LEDs Transfer Optical Data to Mobile Devices
MUNICH, Germany, Aug. 2, 2011 — Common room-illuminating LEDs are now being used to transport HD video from the Internet directly to laptops and other mobile devices. With only a few adjustments, regular LEDs are being turned into optical WLANs — safely shuttling high-speed...
Metamaterial Manipulates Light at Will
DURHAM, N.C., Aug. 2, 2011 — Much in the same way that electronics manipulate electrons, Duke University researchers have developed a material that allows them to manipulate light at will, a discovery that could help replace electronic components with optical technology. ...
Telescope Technology Aids Ocular Health
ALBUQUERQUE, N.M., Aug. 2, 2011 — The James Webb Space Telescope is under budgetary pressures that may scuttle the deep-space scanning mission, but its technologies are already proving useful to human eye health here on Earth. "The Webb telescope program has enabled a number of...
3-D crystal mapping gets a resolution boost
ROSKILDE, Denmark – A newly developed technique for three-dimensional mapping of crystal structures provides resolution 100 times greater than that of existing nondestructive 3-D techniques, opening the door for more precise analysis of the structural parameters in...
Efficient time-reversed light pulses developed
LONDON – Physicists have taken advantage of the properties of periodic systems to efficiently time-reverse ultrashort electromagnetic pulses for applications in medical ultrasound, optical communications, superlensing, ultrafast plasmonics and biological...
Gold nanoantenna enhances plasmonic sensing
BERKELEY, Calif. – The first reported experimental demonstration of antenna-enhanced gas sensing at the single-particle level holds great promise for plasmonic sensing. By placing a palladium nanoparticle on the focusing tip of a gold nanoantenna, researchers with...
Laser Spectroscopy Precisely Measures Antiproton
GARCHING, Germany, Aug. 1, 2011 — A new laser spectroscopy measurement providing the most accurate weight of antimatter yet reveals the mass of the antiproton (the proton’s antiparticle) down to 1.3 parts per billion. It is widely believed that, at the beginning of the...
Math accelerates simulations of thin-film growth
TOLEDO, Ohio – A mathematical approach that accelerates the complex computer calculations used to simulate the formation of microthin materials was implemented recently by a physicist at the University of Toledo. Physics professor Dr. Jacques Amar used the Ohio...
Nanoscale technique designed for MS diagnosis
SANTA BARBARA, Calif. – A new nanoscopic imaging technique may lead to experimental methods for early detection and diagnosis of – and possible treatments for –pathological tissues that are precursors to multiple sclerosis (MS) and similar diseases. ...
Nanoscale waveguides created for next-gen communication
BERKELEY, Calif. – The first true hybrid plasmon polariton nanoscale waveguides for next-generation on-chip optical communications systems have been demonstrated, which could hold great potential for nanophotonics, including intrachip optical communications, signal...
Optical cloaking achieved in visible spectrum
KARLSRUHE, Germany – The Karlsruhe invisibility cloak has been refined so that it is now effective in the visible spectral range. “Seeing something invisible with your own eyes is an exciting experience,” said Joachim Fischer and Tolga Ergin, physicists and...
Perfect, shallow laser welds make better car bodies
FREIBURG, Germany – The corrosion problems encountered on galvanized car bodies could be a thing of the past thanks to a new process that uses a camera to generate temperature images, enabling perfectly controlled surface laser welding. This could be much more useful...
Robotic navigation aids the visually impaired
LOS ANGELES – A robot vision-based mobility aid that was shown a year ago is now being further developed to help the visually impaired navigate city streets, neighborhoods, offices and other complex locations. This robotic navigation system has a binocular...
Sensor chirps to sniff out trace gases
GAITHERSBURG, Md. – A new “chirping” sensor developed at the National Institute of Standards and Technology detects trace gases hundreds of times more quickly than similar technologies in use today. The sensor is also more sensitive and may make detectors...
Solar sheet sucks up sunlight
COLUMBIA, Mo. – A flexible solar sheet that captures more than 90 percent of available light is slated to hit the consumer market within the next five years. Generating energy using traditional photovoltaic (PV) methods of solar collection is inefficient and...
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