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Thursday, July 7, 2011

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Cassini captures images and sounds of Saturn storm

Posted: 06 Jul 2011 11:33 AM PDT

Scientists analyzing data from NASA's Cassini spacecraft now have the first-ever, up-close details of a Saturn storm that is eight times the surface area of Earth.

NMR/MRI applied to microfluidic chromatography

Posted: 06 Jul 2011 10:41 AM PDT

By pairing a remote-detection version of NMR/MRI technology with a unique version of chromatography specifically designed for microfluidic chips, researchers have opened the door to a portable system for highly sensitive multi-dimensional chemical analysis that would be impractical if not impossible with conventional technologies.

Mechanical micro-drum cooled to quantum ground state

Posted: 06 Jul 2011 10:41 AM PDT

Scientists have demonstrated a flexible, broadly usable technique for steadily calming the vibrations of an engineered mechanical object down to the quantum "ground state," the lowest possible energy level.

Coating boosts nanowire efficiency and sensitivity: Promise for photodetectors and solar cells

Posted: 06 Jul 2011 07:48 AM PDT

By applying a coating to individual silicon nanowires, researchers have significantly improved the materials' efficiency and sensitivity. The findings suggest that the coated wires hold promise for photodetectors and energy harvesting technologies like solar cells.

Eye of Gaia: billion-pixel camera to map Milky Way

Posted: 06 Jul 2011 07:46 AM PDT

The largest digital camera ever built for a space mission has been painstakingly mosaicked together from 106 separate electronic detectors. The resulting "billion-pixel array" will serve as the super-sensitive 'eye' of the European Space Agency's Galaxy-mapping Gaia mission.

Unique gel capsule structure enables co-delivery of different types of drugs

Posted: 06 Jul 2011 07:16 AM PDT

Chemists have designed a multiple-compartment gel capsule that can simultaneously deliver hydrophilic and hydrophobic drugs. The microcapsules could be used for the treatment of diseases like cancer, which is often treated using combination chemotherapy.

Pixel perfect: Lens-free, pinhead-size camera developed

Posted: 06 Jul 2011 07:15 AM PDT

It's like a Brownie camera for the digital age: The microscopic device fits on the head of a pin, contains no lenses or moving parts, costs pennies to make -- and this camera could revolutionize an array of science from surgery to robotics.

New device helps the blind to move independently

Posted: 06 Jul 2011 06:44 AM PDT

Engineers have developed a new device that helps the blind to move independently.

Red light from carbon nanotubes

Posted: 06 Jul 2011 06:43 AM PDT

To the human eye, carbon nanotubes usually appear as a black powder. They can hardly be forced to emit light, as they are excellent electrical conductors and capture the energy from other luminescent chemical species placed nearby. Researchers recently developed a relatively simple method allowing the nanotubes exposed to UV to emit red light.

Extremely rapid water: Scientists decipher a protein-bound water chain

Posted: 06 Jul 2011 06:43 AM PDT

Researchers have succeeded in providing evidence that a protein is capable of creating a water molecule chain for a few milliseconds for the directed proton transfer. The combination of vibrational spectroscopy and biomolecular simulations enabled the elucidation of the proton pump mechanism of a cell-membrane protein in atomic detail. The researchers demonstrated that protein-bound water molecules play a decisive role in the function.

Hydrogen peroxide found in space

Posted: 06 Jul 2011 06:38 AM PDT

Molecules of hydrogen peroxide have been found for the first time in interstellar space. The discovery gives clues about the chemical link between two molecules critical for life: water and oxygen. On Earth, hydrogen peroxide plays a key role in the chemistry of water and ozone in our planet's atmosphere, and is familiar for its use as a disinfectant or to bleach hair blonde. Now it has been detected in space by astronomers using the European Southern Observatory-operated APEX telescope in Chile.

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