ScienceDaily: Top Technology News

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• Oh, my stars and hexagons! DNA code shapes gold nanoparticles
• New phenomenon in nanodisk magnetic vortices
• Researchers collect and reuse enzymes while maintaining bioactivity
• New substances 15,000 times more effective in destroying chemical warfare agents
• Advanced explosives detector sniffs out previously undetectable amounts of TNT
• First BOSS data: 3-D map of 500,000 galaxies, 100,000 quasars

Oh, my stars and hexagons! DNA code shapes gold nanoparticles Posted: 08 Aug 2012 01:32 PM PDT DNA holds the genetic code for all sorts of biological molecules and traits. But researchers have found that DNA's code can similarly shape metallic structures. The team found that DNA segments can direct the shape of gold nanoparticles -- tiny gold crystals that have many applications in medicine, electronics and catalysis. Each of the four DNA bases codes for a different gold particle shape: rough round particles, stars, flat round discs, and hexagons.

New phenomenon in nanodisk magnetic vortices Posted: 08 Aug 2012 10:27 AM PDT New findings suggest that the road to magnetic vortex RAM might be more difficult to navigate than previously supposed, but there might be unexpected rewards as well. Contrary to suppositions, the formation of magnetic vortices in ferromagnetic nanodisks is an asymmetric phenomenon.

Researchers collect and reuse enzymes while maintaining bioactivity Posted: 08 Aug 2012 10:27 AM PDT Researchers are collecting and harvesting enzymes while maintaining the enzyme's bioactivity. The new model system may impact cancer research.

New substances 15,000 times more effective in destroying chemical warfare agents Posted: 08 Aug 2012 09:19 AM PDT In an advance that could be used in masks to protect against nerve gas, scientists are reporting development of proteins that are up to 15,000 times more effective than their natural counterpart in destroying chemical warfare agents.

Advanced explosives detector sniffs out previously undetectable amounts of TNT Posted: 08 Aug 2012 09:19 AM PDT With the best explosive detectors often unable to sniff out the tiny amounts of TNT released from terrorist bombs in airports and other public places, scientists are reporting a potential solution. New research describes the development of a device that concentrates TNT vapors in the air so that they become more detectable.

First BOSS data: 3-D map of 500,000 galaxies, 100,000 quasars Posted: 08 Aug 2012 06:38 AM PDT Now available to the public: spectroscopic data from over 500,000 galaxies up to 7 billion light years away, over 100,000 quasars up to 11.5 billion light years away, and many thousands of other astronomical objects in the Sloan Digital Sky Survey's Data Release 9. This is the first data from BOSS, the Baryon Oscillation Spectroscopic Survey, the largest spectroscopic survey ever for measuring evolution of large-scale galactic structure.

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