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. (PhysOrg.com) -- A portable instrument manufactured by Nanosphere Inc. and recently approved by the FDA, can detect genetic variations in blood that alter the effectiveness of some drugs. http://www.physorg.com/news178991057.html Nanotechnology Wed, 02 Dec 2009 16:20:03 EST news178991057 (PhysOrg.com) -- Mention of arsenic poisoning usually brings to mind underhanded murder. However, the danger of arsenic poisoning from contaminated drinking water is far greater. Low concentrations of arsenic are found in nearly all soils and thus also in ground water. About 140 million people worldwide possibly drink water that contains arsenic concentrations above the WHO-recommended limit of 10 ppb (parts per billion). http://www.physorg.com/news178347619.html Nanotechnology Wed, 25 Nov 2009 05:02:58 EST news178347619 Vibrations in nanostructures offer applications in molecular-scale biological sensing and ultrasensitive mass detection. To approach single-atom sensing, it is necessary to reduce the dimensions of the structures to the nanometer scale while preserving long-lived vibrations. http://www.physorg.com/news177870451.html Nanotechnology Thu, 19 Nov 2009 16:28:18 EST news177870451 Danish nanophysicists have developed a new method for manufacturing the cornerstone of nanotechnology research - nanowires. The discovery has great potential for the development of nanoelectronics and highly efficient solar cells. http://www.physorg.com/news176377185.html Nanotechnology Mon, 02 Nov 2009 09:50:01 EST news176377185 (PhysOrg.com) -- Cisplatin is one of the most powerful and effective drugs for treating a wide variety of cancers, but serious side effects ultimately limit the drug's use and effectiveness. Now, however, researchers have developed a nanoparticulate formulation of cisplatin that may be able to eliminate or reduce platinum-associated toxicity while boosting cisplatin's tumor-killing activity. http://www.physorg.com/news176060990.html Nanotechnology Thu, 29 Oct 2009 18:50:19 EST news176060990 A team of researchers led by a Case Western Reserve University physicist is planning the world's largest, most sensitive experiment to catch the stuff of dark matter, stuff that's proved way beyond invisible. http://www.physorg.com/news176041529.html Physics Thu, 29 Oct 2009 14:10:02 EST news176041529 More than 120 years after the discovery of the electromagnetic character of radio waves by Heinrich Hertz, wireless data transmission dominates information technology. Higher and higher radio frequencies are applied to transmit more data within shorter periods of time. Some years ago, scientists found that light waves might also be used for radio transmis-sion. So far, however, manufacture of the small antennas has required an enormous expenditure. German scientists have now succeeded for the first time in specifically and reproducibly manufacturing smallest optical nanoantennas from gold. http://www.physorg.com/news175262415.html Nanotechnology Tue, 20 Oct 2009 13:10:01 EST news175262415 Researchers at Oregon State University and other institutions have developed a new "plasmonic nanorod metamaterial" using extraordinarily tiny rods of gold that will have important applications in medical, biological and chemical sensors. http://www.physorg.com/news174651275.html Nanotechnology Tue, 13 Oct 2009 11:16:09 EST news174651275 (PhysOrg.com) -- In an effort to make graphene more useful in electronics applications, Kansas State University engineers made a golden discovery -- gold "snowflakes" on graphene. http://www.physorg.com/news174590038.html Nanotechnology Mon, 12 Oct 2009 18:15:28 EST news174590038 Australian scientists have found that the bacterium Cupriavidus metallidurans catalyses the biomineralisation of gold by transforming toxic gold compounds to their metallic form using active cellular mechanism. http://www.physorg.com/news174140990.html Physics Wed, 07 Oct 2009 14:20:01 EST news174140990 (PhysOrg.com) -- In full sunlight at mid-day, gold objects are brilliant and richly colored. Put those same objects in a dark interior room with only fluorescent lamps, however, and they will look pale and slightly greenish -- a problem arising from the inability of fluorescent lamps to render the optimal color temperature to reveal gold in its warmest light. http://www.physorg.com/news173638579.html Technology Thu, 01 Oct 2009 18:20:01 EST news173638579 (PhysOrg.com) -- Propylene oxide is an important bulk chemical that is used primarily in the production of polyurethane plastics. Currently, propylene oxide is usually made from propylene (propene) in a process that uses chlorine as an oxidizing agent. This results in undesired byproducts as well as toxic chlorinated organic compounds. Existing alternative routes are mostly complicated and uneconomical. The development of an environmentally friendly propylene oxide synthesis with oxygen as the oxidizing agent is high on the wish list. http://www.physorg.com/news173602236.html Nanotechnology Thu, 01 Oct 2009 07:52:33 EST news173602236 (PhysOrg.com) -- Research at MIT has uncovered new information about how nanoscale patterns on the surface of a material can produce significant changes in the way it interacts with liquids. The discovery could be significant in understanding interactions that affect a wide variety of biological processes in living cells, as well as many manufacturing or energy storage systems. http://www.physorg.com/news173004362.html Nanotechnology Thu, 24 Sep 2009 10:20:01 EST news173004362 In a development that holds much promise for the future of solar cells made from nanocrystals, and the use of solar energy to produce clean and renewable liquid transportation fuels, researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory have reported a technique by which the electrical conductivity of nanorod crystals of the semiconductor cadmium-selenide was increased 100,000 times. http://www.physorg.com/news171796742.html Nanotechnology Thu, 10 Sep 2009 10:19:35 EST news171796742 A Victoria University (New Zealand) scientist has won a prestigious innovation award for turning pure New Zealand Merino wool into gold. http://www.physorg.com/news170952002.html Nanotechnology Mon, 31 Aug 2009 15:40:41 EST news170952002 (PhysOrg.com) -- Nanoparticles combining platinum and gold act as superefficient catalysts, but chemists have struggled to create them in an industrially useful form. Rice University chemists have answered the call this week with a polymer-coated version of gold-platinum nanorods, the first catalysts of their kind that can be used in the organic solvents favored by chemical and drug manufacturers. http://www.physorg.com/news170946874.html Nanotechnology Mon, 31 Aug 2009 14:15:04 EST news170946874 Scientists in Israel have devised a portable breath tester that detects lung cancer with 86 percent accuracy, according to a study released Sunday. http://www.physorg.com/news170864052.html Nanotechnology Sun, 30 Aug 2009 15:50:01 EST news170864052 (PhysOrg.com) -- Those who like to watch spy movies like `Mission Impossible` are familiar with the self-destructing messages that inform the secret agents of the details of their mission and then dissolve in a puff of smoke. In the real world, there is serious interest in materials that don't exactly destroy themselves, but that store texts or images for a predetermined amount of time. http://www.physorg.com/news170495261.html Nanotechnology Wed, 26 Aug 2009 08:48:33 EST news170495261 Nanoparticles are being developed to perform a wide range of medical uses - imaging tumors, carrying drugs, delivering pulses of heat. Rather than settling for just one of these, researchers at the University of Washington have combined two nanoparticles in one tiny package. http://www.physorg.com/news167933174.html Nanotechnology Mon, 27 Jul 2009 17:17:04 EST news167933174 By studying gold nanoparticles with highly uniform sizes and shapes, scientists now understand how they lose energy, a key step towards producing nanoscale detectors for weighing any single atom. http://www.physorg.com/news167912822.html Nanotechnology Mon, 27 Jul 2009 11:27:29 EST news167912822 A clinical report from Dresden supports the impression that "Spice Gold" is strongly addictive. http://www.physorg.com/news166356151.html Medicine & Health Thu, 09 Jul 2009 11:03:46 EST news166356151 Many animals and people experience chronic joint pain. In dogs, a common source of joint pain is hip dysplasia, a developmental defect of the hip joint. Implantation of gold into the soft tissues around the hip joints of dogs with dysplasia can relieve pain and lessen stiffness for several years. http://www.physorg.com/news165241126.html Medicine & Health Fri, 26 Jun 2009 13:19:16 EST news165241126 Biophysicists long for an ideal material -- something more structured and less sticky than a standard glass surface -to anchor and position individual biomolecules. Gold is an alluring possibility, with its simple chemistry and the ease with which it can be patterned. Unfortunately, gold also tends to be sticky and can be melted by lasers. Now, biophysicists at JILA have made gold more precious than ever -at least as a research tool -by creating nonstick gold surfaces and laser-safe gold nanoposts, a potential boon to laser trapping of biomolecules. http://www.physorg.com/news164454781.html Nanotechnology Wed, 17 Jun 2009 11:30:05 EST news164454781 An over-the-counter prostate cancer test kit could be coming to a pharmacy near you, thanks to the collaborative work of a University of Central Florida chemist and M.D. Anderson Cancer Center Orlando researchers. http://www.physorg.com/news163255080.html Medicine & Health Wed, 03 Jun 2009 13:38:36 EST news163255080 (PhysOrg.com) -- Scientists at the University of Liverpool have developed a molecular structure that could help create current-generating machines at the nanoscale. http://www.physorg.com/news162640123.html Nanotechnology Wed, 27 May 2009 10:49:13 EST news162640123 (PhysOrg.com) -- Using DNA not as a genetic material but as a structural support, Cornell researchers have created thin sheets of gold nanoparticles held together by strands of DNA. The work could prove useful for making thin transistors or other electronic devices. http://www.physorg.com/news162056919.html Nanotechnology Wed, 20 May 2009 16:49:21 EST news162056919 An ambitious gold mining project in northern Chile, high up in the Andes close to ancient glaciers, is finally getting underway amid the economic downturn despite fears from environmentalists. http://www.physorg.com/news161410322.html Space & Earth Wed, 13 May 2009 05:12:30 EST news161410322 (PhysOrg.com) -- It has long been known that heat is an effective weapon against tumor cells. However, it's difficult to heat patients' tumors without damaging nearby tissues. http://www.physorg.com/news160665499.html Nanotechnology Mon, 04 May 2009 14:18:53 EST news160665499 (PhysOrg.com) -- Researchers at the University of Illinois have developed a membrane-penetrating nanoneedle for the targeted delivery of one or more molecules into the cytoplasm or the nucleus of living cells. In addition to ferrying tiny amounts of cargo, the nanoneedle can also be used as an electrochemical probe and as an optical biosensor. http://www.physorg.com/news160142450.html Nanotechnology Tue, 28 Apr 2009 13:02:03 EST news160142450 Highly fluorescent gold nanoclusters for sub-cellular imaging have been synthesized by researchers at the Institute of Bioengineering and Nanotechnology (IBN), one of the research institutes of Singapore's A*STAR (Agency for Science, Technology and Research). http://www.physorg.com/news159098428.html Nanotechnology Thu, 16 Apr 2009 11:00:56 EST news159098428