Science

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Raman pixel by pixel

New data processing protocol enables feature-based recognition of Surface-enhanced Raman spectra for intracellular molecule probing of biological targets. It relies on locally detecting the most relevant spectra to retrieve all data independently through indexing.

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Material in dissolvable sutures could treat brain infections, reducing hospital stays

A plastic material already used in absorbable surgical sutures and other medical devices shows promise for continuous administration of antibiotics to patients with brain infections, scientists are reporting in a new study.

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The challenge of delivering to the brain a continuous regimen of antibiotics in case of infection could be met with plastic nanofibers that release medication directly to the affected site.

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Hubble Sees a Bright Light from the Serpent Bearer

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Perseid meteors to light up summer skies

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A Perseid meteor (at left) seen in August 2010 above the four enclosures of the European Southern Observatory’s Very Large Telescope at Paranal, Chile.

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New Study Finds that the Price of Wind Energy in the United States Is Near an All-Time Low

But continued Federal policy uncertainty and low natural gas prices create headwinds for the sector

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The Odd Couple: Two very different gas clouds in the galaxy next door

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NASA's Hubble Space Telescope Finds Source of Magellanic Stream

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Better Than A Diamond?

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Schematic of thermal management in electronics: Local temperature increases occur as a result of current flow in active regions of devices and can lead to degradation of device performance. Materials with high thermal conductivities are used in heat spreading and sinking to conduct heat from the hot regions.

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Pass the salt: Common condiment could enable new high-tech industry

Chemists at Oregon State University have identified a compound that could significantly reduce the cost and potentially enable the mass commercial production of silicon nanostructures - materials that have huge potential in everything from electronics to biomedicine and energy storage.

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Molecules form 2-D patterns never before observed: Nanoscience experiments produce elusive 5-vertex tilings

Tessellation patterns that have fascinated mathematicians since Johannes Kepler worked out their systematics 400 years ago - and that more recently have caught the eye of both artists and crystallographers - can now be seen in the laboratory. They first took shape on a surface more perfectly two-dimensional than any sheet of writing paper, a single layer of atoms and molecules atop an atomically smooth substrate. Physicists coaxed these so-called Kepler tilings "onto the page" through guided self-assembly of nanostructures.

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The 2-D tessellation pattern known as the "semiregular snub square tiling" stands out clearly in this image, which combines scanning tunneling microscopy with computer graphics. The pattern, observed in a surface architecture just one molecule thick, was formed by self-assembly of linear organic linkers, imaged as rods, and lanthanide cerium centers, visualized as bright protrusions. The area shown measures less than 25 nanometers across.