http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A University of Pittsburgh team overcame a major hurdle plaguing the development of nanomaterials such as those that could lead to more efficient catalysts used to produce hydrogen and render car exhaust less toxic. The researchers reported Nov. 29 in Nature Materials the first demonstration of high-temperature stability in metallic nanoparticles, the vaunted next-generation materials hampered by a vulnerability to extreme heat. http://www.physorg.com/news178810410.html Nanotechnology Mon, 30 Nov 2009 13:34:21 EST news178810410 (PhysOrg.com) -- Engineering researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers. http://www.physorg.com/news177672319.html Nanotechnology Tue, 17 Nov 2009 09:25:53 EST news177672319 Researchers at the McCormick School of Engineering and Applied Science at Northwestern University have developed, characterized, and modeled a new kind of probe used in atomic force microscopy (AFM), which images, measures, and manipulates matter at the nanoscale. http://www.physorg.com/news177073639.html Nanotechnology Tue, 10 Nov 2009 11:08:34 EST news177073639 (PhysOrg.com) -- Researchers at Purdue University have discovered a new approach for repairing damaged nerve fibers in spinal cord injuries using nano-spheres that could be injected into the blood shortly after an accident. http://www.physorg.com/news176908863.html Nanotechnology Sun, 08 Nov 2009 13:22:11 EST news176908863 Inside a cramped back room at Rushford Hypersonic, a start-up headquartered in southeastern Minnesota, sits a cube-like machine that throws a mean atomic fastball. At the push of a button, the reactor hurls atoms toward a substrate material at eight times faster than the speed of sound. http://www.physorg.com/news176637826.html Nanotechnology Thu, 05 Nov 2009 11:10:02 EST news176637826 (PhysOrg.com) -- Using precision techniques for making superconducting thin films layer-by-layer, physicists at the U.S. Department of Energy's Brookhaven National Laboratory have identified a single layer responsible for one such material's ability to become superconducting, i.e., carry electrical current with no energy loss. The technique, described in the October 30, 2009, issue of Science, could be used to engineer ultrathin films with "tunable" superconductivity for higher-efficiency electronic devices. http://www.physorg.com/news176045082.html Physics Thu, 29 Oct 2009 14:25:20 EST news176045082 (PhysOrg.com) -- Preventing the havoc wrought when freezing rain collects on roads, power lines, and aircrafts could be only a few nanometers away. A University of Pittsburgh-led team demonstrates in the Nov. 3 edition of Langmuir a nanoparticle-based coating developed in the lab of Di Gao, a chemical and petroleum engineering professor in Pitt's Swanson School of Engineering, that thwarts the buildup of ice on solid surfaces and can be easily applied. http://www.physorg.com/news176044143.html Chemistry Thu, 29 Oct 2009 14:09:54 EST news176044143 (PhysOrg.com) -- A new alternative energy technology relies on the element most associated with climate change: carbon. http://www.physorg.com/news175182633.html Nanotechnology Mon, 19 Oct 2009 14:52:08 EST news175182633 A University of Michigan professor is developing an electric rocket thruster, NanoFET, that uses nanoparticle electric propulsion and enables spacecraft to travel faster and with less propellant than previous technology allowed. http://www.physorg.com/news175166748.html Nanotechnology Mon, 19 Oct 2009 10:40:02 EST news175166748 Imagine a particle so small it would take a million of them to stretch across the period at the end of this sentence. Imagine such particles could help catch cancer cells floating in your bloodstream before they could metastasize to the liver, bones, brain or other organs. Or replace the insulin-making cells of your pancreas to cure diabetes. Or, conversely, attack the linings of your lungs with the lethality of asbestos. http://www.physorg.com/news174670932.html Nanotechnology Tue, 13 Oct 2009 18:20:03 EST news174670932 The U.S. Environmental Protection Agency today outlined a new research strategy to better understand how manufactured nanomaterials may harm human health and the environment. Nanomaterials are materials that are between approximately one and 100 nanometers. These materials are currently used in hundreds of consumer products, including sunscreen, cosmetics and sports equipment. http://www.physorg.com/news173453869.html Nanotechnology Tue, 29 Sep 2009 14:50:01 EST news173453869 Researchers from Brigham Young University found how to shape customized segments of DNA into tiny letters that spell "BYU." This new method of DNA origami will appear in the aptly titled journal Nano Letters. http://www.physorg.com/news172313885.html Nanotechnology Wed, 16 Sep 2009 09:58:28 EST news172313885 Treating second-degree burns with a nanoemulsion lotion sharply curbs bacterial growth and reduces inflammation that otherwise can jeopardize recovery, University of Michigan scientists have shown in initial laboratory studies. http://www.physorg.com/news172161872.html Nanotechnology Mon, 14 Sep 2009 16:20:21 EST news172161872 (PhysOrg.com) -- How much difference can a tenth of a nanometer make? When it comes to figuring out how proteins work, an improvement in resolution of that miniscule amount can mean the difference between seeing where atoms are and understanding how they interact. http://www.physorg.com/news172072491.html Biology Sun, 13 Sep 2009 14:55:27 EST news172072491 You've heard about flower power. What about tree power? It turns out that it's there, in small but measurable quantities. There's enough power in trees for University of Washington researchers to run an electronic circuit, according to results to be published in an upcoming issue of the Institute of Electrical and Electronics Engineers' Transactions on Nanotechnology. http://www.physorg.com/news171643486.html Technology Tue, 08 Sep 2009 16:00:02 EST news171643486 The San Francisco Bay Area has become the nation's hot spot for a microscopic technology that's already being used for everything from keeping drill bits sharp to extending the usable life of cooking oil, and that one day may help detect food-borne pathogens, kill cancer and make objects invisible. http://www.physorg.com/news170615911.html Nanotechnology Thu, 27 Aug 2009 18:40:01 EST news170615911 Johns Hopkins engineers are using a popular children's toy to visualize the behavior of particles, cells and molecules in environments too small to see with the naked eye. These researchers are arranging little LEGO pieces shaped like pegs to re-create microscopic activity taking place inside lab-on-a-chip devices at a scale they can more easily observe. http://www.physorg.com/news170440803.html Nanotechnology Tue, 25 Aug 2009 17:41:15 EST news170440803 A non-toxic and environmentally friendly way to make tiny nanorods of zinc oxide has been developed for the first time by researchers in Saudi Arabia. The approach, described in the current issue of the International Journal of Nanoparticles, could allow the nanorods to be used safely in medical and for other applications. http://www.physorg.com/news169901230.html Nanotechnology Wed, 19 Aug 2009 11:49:13 EST news169901230 In a presentation today (Aug. 19) to the American Chemical Society meeting, Ankit Agarwal, a postdoctoral researcher at the University of Wisconsin-Madison, described an experimental approach to wound healing that could take advantage of silver's anti-bacterial properties, while sidestepping the damage silver can cause to cells needed for healing. http://www.physorg.com/news169890511.html Chemistry Wed, 19 Aug 2009 09:00:10 EST news169890511 (PhysOrg.com) -- Because the new device, called a "spaser," is the first of its kind to emit visible light, it represents a critical component for possible future technologies based on "nanophotonic" circuitry, said Vladimir Shalaev, the Robert and Anne Burnett Professor of Electrical and Computer Engineering at Purdue University. http://www.physorg.com/news169649724.html Physics Sun, 16 Aug 2009 13:56:15 EST news169649724 (PhysOrg.com) -- Researchers in the United States and Spain have discovered that a tool widely used in nanoscale imaging works differently in watery environments, a step toward better using the instrument to study biological molecules and structures. http://www.physorg.com/news169224439.html Nanotechnology Tue, 11 Aug 2009 16:40:01 EST news169224439 (PhysOrg.com) -- Physicists at the Institute for Quantum Optics and Quantum Information (IQOQI) in Vienna and Innsbruck, Austria, have created an interaction between light and a micromechanical resonator that is strong enough to transfer quantum effects. This is an important step towards quantum physics experiments in the macroscopic domain. They report about their result in the latest issue of the scientific journal Nature. http://www.physorg.com/news168771383.html Physics Thu, 06 Aug 2009 09:57:26 EST news168771383 The engineers' dream of self-healing surfaces has taken another step towards becoming reality -- researchers have produced a electroplated layer that contains tiny nanometer-sized capsules. If the layer is damaged, the capsules release fluid and repair the scratch. http://www.physorg.com/news168525937.html Nanotechnology Mon, 03 Aug 2009 14:20:01 EST news168525937 (PhysOrg.com) -- We could soon see the potential of laser technology expand dramatically. http://www.physorg.com/news168012151.html Physics Tue, 28 Jul 2009 15:03:21 EST news168012151 (PhysOrg.com) -- Purdue University researchers have created magnetically responsive gold nanostars that may offer a new approach to biomedical imaging. http://www.physorg.com/news167406640.html Nanotechnology Tue, 21 Jul 2009 14:51:23 EST news167406640 Intel is moving to a more advanced, 34- nanometer manufacturing process for its NAND flash-based Solid State Drive (SSD) products, which are an alternative to a computer's hard drive. The move to 34nm will help lower prices of the SSDs up to 60 percent for PC and laptop makers and consumers who buy them due to the reduced die size and advanced engineering design. http://www.physorg.com/news167406516.html Electronics Tue, 21 Jul 2009 14:49:32 EST news167406516 Cells rely on tiny molecular motors to deliver cargo, such as mRNA and organelles, within the cell. The critical nature of this transport system is evidenced by the fact that disruption of motors by genetic defects leads to fatal diseases in humans. Although investigators have isolated these motor to study their function in a controlled environment outside the cell, it has been difficult for researchers to follow these fascinating molecular transporters in their natural environment, the living cell. http://www.physorg.com/news167400145.html Biology Tue, 21 Jul 2009 13:03:09 EST news167400145 (PhysOrg.com) -- Scientists have developed a lighting device that can change its color temperature throughout the day, matching the natural daylight chromaticities produced by the sun. Currently, no other type of lighting device is capable of producing this wide a span of sunlight-style illumination, which could make the new technology an attractive future high-quality lighting source. http://www.physorg.com/news166945490.html Physics Thu, 16 Jul 2009 09:00:01 EST news166945490 From the motion sensor to the computer chip - in many products of daily life components are used whose functioning is based on smallest structures of the size of thousandths - or even millionths - of millimetres. These micro and nano structures must be manufactured and assembled with the highest precision so that in the end, the overall system will function smoothly. http://www.physorg.com/news166093649.html Nanotechnology Mon, 06 Jul 2009 10:08:07 EST news166093649 A research team at Northwestern University has developed a tool that can precisely deliver tiny doses of drug-carrying nanomaterials to individual cells. The tool, called the nanofountain probe, functions in two different ways. In one mode, the probe acts like a fountain pen with drug-coated nanodiamonds serving as the ink, allowing researchers to create devices by `writing` with it. The second mode functions as a single-cell syringe, permitting direct injection of biomolecules or chemicals into individual cells. The research was led by Horacio Dante Espinosa, Ph.D., and Dean Ho, Ph.D., and the results appear in the journal Small. http://www.physorg.com/news165512374.html Nanotechnology Mon, 29 Jun 2009 21:10:03 EST news165512374