Science

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Mixing nanoparticles to make multifunctional materials: Standardized technique opens remarkable opportunities for 'mix and match' materials fabrication

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a general approach for combining different types of nanoparticles to produce large-scale composite materials.

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DNA linkers allow different kinds of nanoparticles to self-assemble and form relatively large-scale nanocomposite arrays. This approach allows for mixing and matching components for the design of multifunctional materials.

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An optical switch based on a single nano-diamond: ICFO scientists have shown that a nano-size diamond at room temperature can act as an efficient optical switch controllable with light

A recent study led by researchers of the ICFO (Institute of Photonic Sciences) demonstrates that a single nano-diamond can be operated as an ultrafast single-emitter optical switch operating at room temperature.

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This shows the nanomanipulation of an artificial atom.

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Haydale updates on their graphene inks and GNPs, expects products based on graphene inks by early 2014

Back in June 2013, Haydale (owned by ICL from May 2011) announced that it developed metal-free graphene-based inks. Haydale, established in 2003 with strong links with Swansea University, is developing and marketing carbon materials under the HDPlas brand.

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Football-shaped particles bolster the body's defense against cancer

Researchers at Johns Hopkins have succeeded in making flattened, football-shaped artificial particles that impersonate immune cells. These football-shaped particles seem to be better than the typical basketball-shaped particles at teaching immune cells to recognize and destroy cancer cells in mice.

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T-cells (red) are activated more robustly when they interact with artificial antigen-presenting cells (green) that are elongated (right) versus round (left).

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Rice University mix of graphene nanoribbons, polymer has potential for cars, soda, beer

A discovery at Rice University aims to make vehicles that run on compressed natural gas more practical. It might also prolong the shelf life of bottled beer and soda.

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A composite material created at Rice University is nearly impervious to gas and may lead to efficient storage of compressed natural gas for vehicles. A 65-micrometer-wide polymer film, photographed edge-on with an electron microscope, contains a tiny amount of enhanced graphene nanoribbons that present gas molecules a “tortuous path” to escape.

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Turning vapors into foam-like polymer coatings

Polymers -- the essential component of plastics -- are found in countless commercial, medical, and industrial products. Polymers that are porous are called foam polymers and are especially useful because they combine light weight with rigid mechanical properties. Now a researcher at the University of Rochester has developed a process to grow highly customizable coatings of foam-like polymers.

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An initiated chemical vapor deposition (ICVD) system is used to convert a mixture of gases into foam polymer.

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Soft shells and strange star clusters

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The beautiful, petal-like shells of galaxy PGC 6240 are captured here in intricate detail by the NASA/ESA Hubble Space Telescope, set against a sky full of distant background galaxies. This cosmic bloom is of great interest to astronomers due to both its uneven structure, and the unusual clusters of stars that orbit around it — two strong indications of a galactic merger in the recent past.

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Water-rich Planetary Building Blocks Found Around White Dwarf

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Water-rich Planetary Building Blocks Found Around White Dwarf

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Scientists use blur to sharpen DNA mapping: Rice University researchers transcend optical limits to locate specific sequences

With high-tech optical tools and sophisticated mathematics, Rice University researchers have found a way to pinpoint the location of specific sequences along single strands of DNA, a technique that could someday help diagnose genetic diseases.

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A super-resolution technique developed at Rice University allows fluorescent-labeled probe DNA to pinpoint target DNA sequences in an immobilized strand in ways neither regular nor electron microscopes are able. The technique relies on multiple images of probes binding temporarily to targets as they flow over the strand and are captured by a camera.