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) -- Researchers have used lasers to create the first practical macroscopic yarns from boron nitride fibers, opening the door for an array of applications, from radiation-shielded spacecraft to stronger body armor, according to a just-published study. http://www.physorg.com/news179001844.html Nanotechnology Wed, 02 Dec 2009 19:20:06 EST news179001844 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 An ancient Confucian philosopher once said, "I love the lotus because while growing from mud, it is unstained." http://www.physorg.com/news175430726.html Physics Thu, 22 Oct 2009 11:46:37 EST news175430726 (PhysOrg.com) -- Opposites may always attract. But they may not remain together long-term. In a counter-intuitive discovery published in the current edition of the journal Nature, researchers from Harvard, the University of California at Davis, Princeton, and Penn State University report that oppositely charged drops of water will not attract permanently, but instead will bounce off each other indefinitely when subjected to a force of attraction created by what physicists call an electric field that is too strong. http://www.physorg.com/news173033503.html Physics Thu, 24 Sep 2009 17:57:26 EST news173033503 (PhysOrg.com) -- Inventing a useful new tool for creating chemical reactions between single molecules, scientists at the National Institute of Standards and Technology have employed microfluidics -- the manipulation of fluids at the microscopic scale -- to make microdroplets that contain single molecules of interest. By combining this new microfluidic "droplet-on-demand" method with "optical tweezers" that could merge multiple droplets and cause their molecular contents to react, the research may ultimately lead to a compact, integrated setup for obtaining single-molecule information on the structure and function of important organic materials, such as proteins, enzymes, and DNA. http://www.physorg.com/news172862506.html Nanotechnology Tue, 22 Sep 2009 18:22:11 EST news172862506 A protein found present in all cells in the body could help scientists better understand how we store fat. http://www.physorg.com/news172403290.html Chemistry Thu, 17 Sep 2009 11:00:02 EST news172403290 (PhysOrg.com) -- Whether gazing into lava lamps or watching balsamic vinegar mix with olive oil, people have long been transfixed by the seemingly mystical way that droplets of one liquid find each other within another liquid and join together. Conventional scientific wisdom has held that this merging of liquid droplets, a process called coalescence, is enhanced by applying an electrical field, but a new study, which will be published in the Sept. 17 issue of the journal Nature, shows that an increased electrical field actually can prevent droplets from merging. http://www.physorg.com/news172335053.html Physics Wed, 16 Sep 2009 15:51:31 EST news172335053 The first dry powder inhalable vaccine for measles is moving toward clinical trials next year in India, where the disease still sickens millions of infants and children and kills almost 200,000 annually, according to a report presented here today at the 238th National Meeting of the American Chemical Society (ACS). http://www.physorg.com/news169656057.html Medicine & Health Sun, 16 Aug 2009 15:41:30 EST news169656057 Billions of tonnes of water droplets vanish from the atmosphere, as if by magic, in events that reveal in detail how the Sun and the stars control our everyday clouds. Researchers of the National Space Institute in the Technical University of Denmark (DTU) have traced the consequences of eruptions on the Sun that screen the Earth from some of the cosmic rays - the energetic particles raining down on our planet from exploded stars. http://www.physorg.com/news168353215.html Space & Earth Sat, 01 Aug 2009 14:10:01 EST news168353215 For generations, schoolchildren have been taught that raindrops start as micro-droplets that then gather together in clouds with their neighbours to become bigger droplets. http://www.physorg.com/news167315264.html Physics Mon, 20 Jul 2009 13:28:10 EST news167315264 (PhysOrg.com) -- In its atomic form, chlorine can destroy vast quantities of ozone. But exactly how chlorine is created in the ultracold conditions of the stratosphere has puzzled scientists. Now, a team of researchers from Italy and Germany has found a mechanism for how chlorine can easily form in these unfavorable conditions, which is based on water's ability to bond with a strong acid. http://www.physorg.com/news165172471.html Chemistry Thu, 25 Jun 2009 18:15:08 EST news165172471 University of Chicago researchers recently showed that dry granular materials such as sands, seeds and grains have properties similar to liquid, forming water-like droplets when poured from a given source. The finding could be important to a wide range of industries that use "fluidized" dry particles for oil refining, plastics manufacturing and pharmaceutical production. http://www.physorg.com/news165068691.html Physics Wed, 24 Jun 2009 13:50:01 EST news165068691 Scientists are reporting a potential solution to a problem that limits the human body`s ability to absorb and use medications for heart disease, Type-2 diabetes, cancer and other conditions. It is a `nano-hybrid microcapsule` that enables the stomach to absorb more of these so-called `poorly-soluble` medicines. Their study is scheduled for the June 1 issue of ACS` Molecular Pharmaceutics. http://www.physorg.com/news162671178.html Chemistry Wed, 27 May 2009 19:26:39 EST news162671178 Scientists have discovered that cells use a very simple phase transition -- similar to water vapor condensing into dew -- to assemble and localize subcellular structures that are involved in formation of the embryo. http://www.physorg.com/news162134011.html Biology Thu, 21 May 2009 14:14:05 EST news162134011 A new article in the journal Risk Analysis assessed various ways in which aerosol transmission of the flu, a central mode of diffusion which involves breathing droplets in the air, can be reduced. Results show that face protection is a key infection control measure for influenza and can thus affect how people should try to protect themselves from the swine flu. http://www.physorg.com/news162056414.html Medicine & Health Wed, 20 May 2009 16:41:12 EST news162056414 Self-cleaning walls, counter tops, fabrics, even micro-robots that can walk on water -- all those things and more could be closer to reality because of research recently completed by scientists at the University of Nebraska-Lincoln and at Japan's RIKEN institute. http://www.physorg.com/news160675932.html Nanotechnology Mon, 04 May 2009 17:12:57 EST news160675932 Scientists in Japan are reporting an advance toward giving artificial cells another hallmark of life -- the ability to tap an energy source and use it to undergo sustained movement. Their study, published in the Journal of the American Chemical Society, describes the first `self-propelled` oil droplets (used as a model for research on artificial cells) that can run on a chemical `fuel.` http://www.physorg.com/news160233585.html Chemistry Wed, 29 Apr 2009 14:20:03 EST news160233585 Two lasers may be better than one when attacking cancer cells, according to a paper by Rice University scientists. http://www.physorg.com/news157219087.html Nanotechnology Wed, 25 Mar 2009 16:59:23 EST news157219087 (AP) -- Did NASA's Phoenix Mars lander find evidence of liquid water before it froze to death? http://www.physorg.com/news155990881.html Space & Earth Wed, 11 Mar 2009 11:59:16 EST news155990881 Oil spills are a major environmental problem because they often occur at sea and in remote, ecologically-sensitive areas where their impact on birds, sea mammals and subsurface life may last for years. http://www.physorg.com/news146328857.html Physics Wed, 19 Nov 2008 14:54:17 EST news146328857 Our blood, sweat and tears are three precious fluids that can answer lots of questions about the state of our health but testing small amounts of bodily fluids, without contaminating them through contact with solid surfaces or other fluids, is something that fluid mechanics have long pondered. http://www.physorg.com/news146220286.html Physics Tue, 18 Nov 2008 08:44:46 EST news146220286 Measuring an electrical current in an organism is pretty straightforward. All you need is an electrode. Measuring the flow of chemicals in cells or live tissue, however, is much more difficult because the molecules diffuse, mix with one another, and interact with their surroundings. http://www.physorg.com/news144344255.html Chemistry Mon, 27 Oct 2008 16:37:35 EST news144344255 New miniature image-capturing technology powered by water, sound, and surface tension could lead to smarter and lighter cameras in everything from cell phones and automobiles to autonomous robots and miniature spy planes. http://www.physorg.com/news141300733.html Physics Mon, 22 Sep 2008 11:12:13 EST news141300733 (PhysOrg.com) -- UCLA scientists have succeeded in making unique nanoscale droplets that are much smaller than a human cell and can potentially be used to deliver pharmaceuticals. http://www.physorg.com/news139666186.html Nanotechnology Wed, 03 Sep 2008 13:09:46 EST news139666186 Fingerprints can reveal critical evidence, as well as an identity, with the use of a new technology developed at Purdue University that detects trace amounts of explosives, drugs or other materials left behind in the prints. http://www.physorg.com/news137336723.html Chemistry Thu, 07 Aug 2008 14:05:23 EST news137336723