Dear EarthTalk: What is "nanotechnology"? I've heard that nanoparticles are already in consumer products, yet we haven't really studied their potential health impacts. (Dan Zeff, San Francisco)
Bio & Medicine
May 25, 2009
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The most well-known forms of carbon include graphite and diamond, but there are other more exotic nanoscale allotropes of carbon as well. These include graphene and fullerenes, which are sp2 hybridized carbon with zero (flat-shaped) ...
Analytical Chemistry
Jan 11, 2023
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Diamond, like graphite, is a special form of carbon. Its cubic crystal structure and its strong chemical bonds give it its unique hardness. For thousands of years, it has also been sought after as both a tool and as a thing ...
Materials Science
Jan 21, 2021
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(PhysOrg.com) -- While scientists and engineers have developed several products that repel water and, to a lesser degree, snow and ice, considerable room remains for something "new and improved."
Nanomaterials
Jun 2, 2011
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(PhysOrg.com) -- Semiconductor nanowires -- tiny wires with a diameter as small as a few billionths of a meter — hold promise for devices of the future, both in technology like light-emitting diodes and in new versions ...
Nanophysics
Apr 2, 2009
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Researchers from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences and Kyoto University have proposed a strategy to grow "face-on" and "edge-on" conductive metal-organic frameworks (cMOF) nanofilms ...
Nanomaterials
Oct 9, 2023
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Many discoveries in physics came as a big surprise – for example the phenomenon, that some materials loose almost all their electrical resistance at low temperatures, or that others become superconductors at unexpectedly ...
General Physics
Mar 13, 2013
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For a long time, the production of ceramic coatings has only been possible by means of sintering techniques conducted at more than 1,000 degrees Celsius. However, a novel spraying method, Powder Aerosol Deposition (PAD), ...
Materials Science
Apr 20, 2020
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Hydrogen at elevated temperature creates high electrical conductivity in the Earth's mantle.
Earth Sciences
Jul 26, 2017
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Thermoelectric generators can make better use of the excess heat generated by machines by converting temperature differences directly back into electricity. Now, Masaki Takata from the RIKEN SPring-8 Center, Harima, working ...
Condensed Matter
Oct 12, 2012
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