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Spiraling Laser Pulses Could Change the Nature of Graphene

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A new study predicts that researchers could use spiraling pulses of laser light to change the nature of graphene, turning it from a metal into an insulator and giving it other peculiar properties that might be used to encode information.

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Trending Stories Report for 27 May 2015

Trending news releases with the most views in a single day. Topics include: genetics, cancer, nanotech, elderly care, marketing research, energy, children's health, and immunology.

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Trending Stories Report for 26 May 2015

Trending news releases with the most views in a single day. Topics include: genetics and cancer, diabetes and blindness, nanotech, engineering, personalized medicine, energy, and e-cigarettes.

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Carbon Nanothreads From Compressed Benzene

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The thinnest possible linear thread that still retains a diamond-like structure was created by the extreme compression and decompression of the common chemical benzene. The threads may have outstanding mechanical and electronic properties. Further, the synthesis method opens up possible variations that could lead to new materials.

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Chemical Fingerprinting of Materials Takes More Than Just a Dab of Ink

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A new patent blazes a path forward for a way to simultaneously determine the physical structure and chemical makeup of materials close to the atomic level using a combination of microscopy techniques.

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DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles

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In a new twist on the use of DNA in nanoscale construction, scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and collaborators put synthetic strands of the biological material to work in two ways: They used ropelike configurations of the DNA double helix to form a rigid geometrical framework, and added dangling pieces of single-stranded DNA to glue nanoparticles in place.

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Engineering Phase Changes in Nanoparticle Arrays

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Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have just taken a big step toward the goal of engineering dynamic nanomaterials whose structure and associated properties can be switched on demand. In a paper appearing in Nature Materials, they describe a way to selectively rearrange the nanoparticles in three-dimensional arrays to produce different configurations, or phases, from the same nano-components.

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This Slinky Lookalike “Hyperlens” Helps Us See Tiny Objects

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It looks like a Slinky suspended in motion. Yet this photonics advancement – called a metamaterial hyperlens – doesn’t climb down stairs. Instead, it improves our ability to see tiny objects.

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Trending Stories Report for 22 May 2015

Trending news releases with the most views in a single day. Topics include: swelling magnets; using genetics to fight dengue fever; cybersecurity; Hubble finds 'Nasty' star; ventilation and patient survival; food security; gamification in business; and cancer research on implants to improve glioma treatment.

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Shape-Shifting Plastic

Researchers from Oak Ridge National Laboratory, Washington State University and the University of Idaho have developed a process to make a thermoset that can be reshaped and reused. The new plastic is a shape-memory polymer, so named because the material can “remember” its original shape and return to it after being deformed with heat or other forces.