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Two-dimensional graphene metamaterials, one-atom-thick optical devices envisioned Two University of Pennsylvania engineers have proposed the possibility of two-dimensional metamaterials. These one-atom-thick metamaterials could be achieved by controlling the conductivity of sheets of graphene, which is a single layer of carbon atoms.
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Team calculates the role of buried layers in few-layer epitaxial graphene
A CNST-led collaboration with the University of Maryland and the University of Texas has computed how electrostatic interactions between electrons in different layers of few-layer graphene affect the properties of the top layer [1].
'Catch and release' program could improve nanoparticle safety assessment
(PhysOrg.com) -- Depending on whom you ask, nanoparticles are, potentially, either one of the most promising or the most perilous creations of science. These tiny objects can deliver drugs efficiently and enhance the properties of many materials, but what if they also are hazardous to your health in some way? Now, scientists at the National Institute of Standards and Technology have found a way to manipulate nanoparticles so that questions like this can be answered.
Bone is one of nature's surprising "building materials." Pound-for-pound it's stronger than steel, tough yet resilient. Scientists at the U.S. Department of Energy's Ames Laboratory have identified the composition that gives bone its outstanding properties and the important role citrate plays, work that may help science better understand and treat or prevent bone diseases such as osteoporosis.
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