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Polymer characterization 'tweezers' turn Nobel theory into benchtop tool
e! Science News
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Researchers at University of California Santa-Barbara have developed a new and highly efficient way to characterize the structure of polymers at the nanoscale — effectively designing a
routine analytical tool that could be used by industries that rely on polymer science to innovate new products, from drug delivery gels to renewable bio-materials.
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Current steering nanomaterial holds promise for self rewiring
electronics
New Electronics
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A new nanomaterial capable of steering itself could one day yield self rewiring electronics, according to
researchers at Northwestern State University. The reconfigurable, hybrid material created by the Chicago-based team is made up of different aspects of silicon and polymer based electronics. The researchers believe it could enable a single device to act as a resistor, rectifier, diode or transistor, as instructed by a computer.
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Developments in anti-microbial masterbatches with silver based technologies
Plastemart
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As a metal, silver is well-known for its antimicrobial effects. Silver ions and silver compounds show a toxic effect on some bacteria, viruses, algae and fungi, typical for heavy metals like lead or
mercury, but without the high toxicity to humans normally associated with the other metals. There has been renewed interest in silver as a broad-spectrum antimicrobial agent. The industry has seen several developments in anti-microbial masterbatches with silver based technologies to reduce the dangers of hospital-acquired infections.
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Developments in aroma barrier properties important in packaging of perishable contents
Plastemart
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Preference for food with a fresh appearance and free from unwanted odors, makes an adequate packaging fundamental. Therefore, aroma barrier properties are
enormously important in any packaging for perishable contents. Barrier packaging must protect the product from extrinsic elements outside the package, such as gases, moisture, odors, contaminants and light. In addition, there are intrinsic factors from inside the package that should be considered. These can be flavor scalping, aromas or chemical changes in the product being packaged.
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Nanoconfinement of organic solar cell material enhances
conductivity
R&D Magazine
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Sometimes a change in surroundings makes all the difference. That's the approach a group of researchers at the
U.S. Department of Energy's Brookhaven National Laboratory has used to improve the electricity output of a semiconductor material used in polymer-based solar cells. By confining the light-absorbing/charge-separating material within nanometer-scale pores, instead of using it in continuous thin-film sheets, the scientists enhanced the material's electrical conductivity by more than 500 times — and produced solar cells with twice the electricity output for the same amount of absorbed
sunlight.
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Morphology matters: The effect of processing on solar cells
PhysOrg.com
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The study resolves some of the discrepancies found between experimental results from previously published studies and highlights that processing and molecular weight need to be carefully controlled to ensure maximum solar cell performance.
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Polymer-coated cans lower energy use
Environment Leader
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New technology is allowing for drink cans with a much lower environmental footprint, according to Packaging Europe. This year's 2011 Can of the Year Award went to the Toyo Ultimate Can, which has a
micron-thin polymer coating. This eliminates the needs for lubricants usually used in the can-shaping presses, which in turn means the manufacturer doesn't need chemicals to wash off the lubricant. The coating also eliminates the need for spray coats and the ovens used for curing those coats.
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QD-polymer nanocomposite displays multicolour wave-guiding
Nanotechweb.org
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Nanocomposites consisting of quantum dots inside a polymer matrix are very promising materials for future photonic devices. They combine the novel properties of QDs, such as highly efficient and
temperature-independent emission, with the easy processing, low cost and wave-guiding attributes of polymers.
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Synthetic muscles make nanobots effective
BioScholar News
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Powerful synthetic muscles fabricated by researchers will now impart cutting edge to medical nanobots for diagnostics and treatment. Although nanobots have been in the news for cancer fighting, drug delivery and parasite removal, a major hurdle in their development hinged on propelling them in the bloodstream, which requires appropriate muscles.
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Tiny stamps for tiny sensors
MIT News
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Advances in microchip technology may someday enable clinicians to perform tests for hundreds of diseases — sifting out specific molecules, such as early
stage cancer cells — from just one drop of blood. But fabricating such "lab-on-a-chip" designs — tiny, integrated diagnostic sensor arrays on surfaces as small as a square centimeter — is a technically challenging, time-consuming and expensive feat.
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