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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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Who Needs Water to Assemble DNA? Non-Aqueous Solvent Supports DNA Nanotechnology

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Researchers at the Georgia Institute of Technology have now shown that they can assemble DNA nanostructures in a solvent containing no water.

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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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Nanotechnology Identifies Brain Tumor Types Through MRI “Virtual Biopsy” in Animal Studies

Biomedical researchers at Cedars-Sinai have invented a tiny drug-delivery system that can identify cancer cell types in the brain through “virtual biopsies” and then attack the molecular structure of the disease.

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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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One Step Closer to a Single-Molecule Device

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Columbia Engineering professor Latha Venkataraman has designed a new technique to create a single-molecule diode, and, in doing so, she has developed molecular diodes that perform 50 times better than all prior designs. Venkataraman’s group is the first to develop a single-molecule diode that may have real-world technological applications for nanoscale devices.

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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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Precision Nanobatteries by the Billions

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Extremely small batteries built inside nanopores show that properly scaled structures can use the full theoretical capacity of the charge storage material. The batteries are part of assessing the basics of ion and electron transport in nanostructures for energy storage.