Posts Tagged ‘spectroscopy’

T-ray laser pulses advance imaging

U. LEEDS (UK) — Researchers have produced terahertz ray pulses from a quantum cascade laser, the first time rays have been made to emit separate packets of radiation, rather than in a continuous beam. Continue…

Friday, April 29, 2011 8:31 - 1 Comment

Science & Technology - Jan 3, 2011 14:22 - 0 Comments

Nanowriting a big step in electronics

U. ILLINOIS (US) — A method for direct writing of metal lines less than five nanometers wide is expected to have a big impact in creating contacts to and interconnects between nanoscale device structures. (more…)

Science & Technology - Sep 13, 2010 13:41 - 0 Comments

Biomedicine at the flip of a switch

U. ILLINOIS (US)—Instead of dyes or fluorescence, a new class of molecular probes for biomedical research requires only a light switch, similar to an ordinary house lamp, to illuminate the molecular world. (more…)

Science & Technology - Sep 7, 2010 9:44 - 0 Comments

Want to have water? Just add starlight

CARDIFF (UK)—A key ingredient for making water in the atmosphere of some stars is ultraviolet starlight, according to new research. (more…)

Science & Technology - Sep 2, 2010 15:09 - 0 Comments

What’s the sound of yellow ochre?

MCGILL (CAN)—Chemists have discovered that a technique known as photoacoustic infrared spectroscopy could help identify the composition of pigments used in artwork that is decades or even centuries old. (more…)

Science & Technology - Sep 1, 2010 13:59 - 1 Comment

Front row seat to ultrafast chemical reaction

U. MICHIGAN (US)—To best observe chemical transformations in solution, molecular spectators have to be close to the action. (more…)

Science & Technology - Jun 9, 2010 14:51 - 1 Comment

Dawdling electrons move at their own pace

CORNELL (US)—Scientists for the first time have produced images of “heavy fermions”—electrons that move through a conductor as if their mass were up to 1,000 times what it should be. (more…)

Science & Technology - Mar 19, 2010 12:13 - 0 Comments

Au naturel protein: No staples required

STANFORD (US)—For the first time, researchers have been able to confine and study an individual protein without having to pin it down so tightly as to alter its fundamental behavior. (more…)

Science & Technology - Feb 8, 2010 15:05 - 2 Comments

NASA launching tools to forecast solar activity

U. COLORADO (US)—An instrument package set for launch by NASA on Feb. 10 is expected to give scientists a better understanding of the sun’s impact on space weather. (more…)

Health & Medicine - Feb 4, 2010 12:21 - 0 Comments

Study clears way for better flu-blocking drugs

IOWA STATE (US)—A study detailing how antiviral drugs block influenza A viruses should pave the way for development of new drugs to fight a range of flu viruses, including pandemic H1N1, says lead researcher Mei Hong. (more…)

Science & Technology - Dec 21, 2009 17:14 - 0 Comments

Brown dwarf pair mystifies astronomers

PENN STATE (US)—Two brown dwarf-sized objects orbiting a giant old star show that planets may assemble around stars more quickly and efficiently than anyone thought possible, according to an international team of astronomers. (more…)

Health & Medicine - Dec 9, 2009 12:33 - 0 Comments

Speedier way to diagnose pneumonia

UC DAVIS (US)—Doctors may soon be able to diagnose the cause of pneumonia-like symptoms by examining the chemicals found in a patient’s urine. (more…)

Health & Medicine - Dec 3, 2009 17:11 - 4 Comments

Nanoscopic tour of aging bone

U. MICHIGAN (US)—Scientists are studying a noninvasive way to get inside our bones and learn more about how disease and aging might affect them. (more…)

Health & Medicine - Nov 12, 2009 17:38 - 4 Comments

Reading chemical memories of past drug use

VANDERBILT (US)—A research team is trying to determine if an individual’s white blood cells retain chemical memories of exposure to drugs—like cocaine and alcohol—that can be read reliably and unambiguously. (more…)

Health & Medicine - Nov 10, 2009 15:46 - 0 Comments

Molecules built to break up Alzheimer’s clumps

U. MICHIGAN (US)—Scientists have developed “bi-functional” small molecules that not only grab metal ions but also interact with peptides that clump to form plaques in the brain. (more…)

Science & Technology - Oct 21, 2009 17:05 - 3 Comments

Playing hide and seek with exoplanets

U. COLORADO (US)—A precise “laser ruler” is being developed to look for Earth-like planets around other stars. The device will measure tiny changes in infrared light caused by the gravitational wobble of small, cool stars as they are tugged back and forth by their rocky planets. (more…)

Science & Technology - Sep 29, 2009 11:52 - 0 Comments

Messenger makes final Mercury flyby

U. COLORADO (US)—NASA’s Messenger spacecraft will zip by Mercury for the third and final time today, September 29, cruising within 142 miles of the planet’s surface at more than 100,000 mph. Messenger will take high-resolution color images of the surface terrain before making a clever gravity-assist maneuver that will steer it into orbit around the rocky planet beginning in March 2011. (more…)

Science & Technology, Society & Culture - Aug 27, 2009 15:23 - 0 Comments

Decoding art’s DNA

Do statues have fingerprints? Do paintings have DNA?