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 single bacterium can act alone, performing the same kinds of actions that a group normally does. The behavior of that bacterium can be manipulated at the cellular level. That`s the intriguing finding by a group of researchers from UNM, the Dartmouth Medical School, the New Mexico Veterans Health Care System, and Sandia National Laboratories. The results are reported in the Nov. 22 issue of Nature Chemical Biology. A possible application is halting drug resistant bacteria found in hospital settings. http://www.physorg.com/news179520110.html Chemistry Tue, 08 Dec 2009 18:42:40 EST news179520110 (PhysOrg.com) -- The catalytic processes that facilitate the production of many chemicals and fuels could become much more environmentally friendly thanks to a breakthrough achieved by researchers from Lehigh and Rice Universities. http://www.physorg.com/news177006900.html Nanotechnology Mon, 09 Nov 2009 17:20:09 EST news177006900 Very tiny wires, called nanowires, made from such metals as silver and gold, may play a crucial role as electrical or mechanical switches in the development of future-generation ultrasmall nanodevices. http://www.physorg.com/news176047225.html Nanotechnology Thu, 29 Oct 2009 22:00:02 EST news176047225 Scientists at the California Institute of Technology have uncovered the physical mechanism by which arrays of nanoscale pillars can be grown on polymer films with very high precision, in potentially limitless patterns. http://www.physorg.com/news175451434.html Nanotechnology Thu, 22 Oct 2009 17:31:34 EST news175451434 (PhysOrg.com) -- Researchers from the MESA+ Institute for Nanotechnology at the University of Twente, The Netherlands, working with American researchers, have succeeded in using an electrical signal to control both the elastic and the magnetic properties of a nanomaterial at a very localized level. This opens up new possibilities for data storage with very high data densities. Their findings are to be published in November in the leading scientific journal Nature Nanotechnology. http://www.physorg.com/news175445828.html Nanotechnology Thu, 22 Oct 2009 15:58:37 EST news175445828 (PhysOrg.com) -- Taking nanomaterials to a new level of structural complexity, scientists have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional structures with correspondingly advanced functions. http://www.physorg.com/news175339313.html Nanotechnology Wed, 21 Oct 2009 10:23:16 EST news175339313 The first fundamental studies of the dependence of ferroelectric domain configuration and switching behavior on the shape of epitaxial BiFeO3 (BFO) nanostructures has been reported by users from Northwestern University, Korea Advanced Institute of Science & Technology, and Argonne`s Materials Science Division working collaboratively with CNM`s Nanofabrication & Devices Group. http://www.physorg.com/news175236233.html Nanotechnology Tue, 20 Oct 2009 05:44:24 EST news175236233 (PhysOrg.com) -- Salt and paper battery can be used in many low-power devices, such as medical implants, RFID tags, wireless sensors and smart cards. This battery uses a thin-film which makes it an attractive feature for many portable devices that draws a low current. http://www.physorg.com/news172241467.html Technology Tue, 15 Sep 2009 13:52:18 EST news172241467 Air Force Office of Scientific Research(AFOSR)-supported physicists at the University of Michigan are developing innovative components for quantum, or super-fast, computers that will improve security for data storage and transmission. http://www.physorg.com/news171731312.html Physics Wed, 09 Sep 2009 16:20:02 EST news171731312 (PhysOrg.com) -- With its unique double-helical structure, DNA has the ability to be used as a programmable building material to construct designer nanoscale architectures. Complex DNA architectures could have a variety of applications, from DNA-based nanomotors to biosensing and drug delivery. Taking the research a step forward, researchers have recently constructed a nanometer-sized tetrahedron from a single strand of DNA, using a method that could have advantages for assembling similar structures on a large scale. http://www.physorg.com/news171624372.html Nanotechnology Tue, 08 Sep 2009 10:26:49 EST news171624372 (PhysOrg.com) -- IBM scientists have demonstrated a promising and practical method that effectively eliminates the mechanical wear in the nanometer-sharp tips used in scanning probe-based techniques. This discovery can potentially be used in the development of next generation, more advanced computer chips that have higher performance and smaller feature sizes. Scanning probe-based tools could be one approach to extend the capabilities, quality and precision beyond the projected limits of current production and characterization tools. http://www.physorg.com/news171563990.html Nanotechnology Mon, 07 Sep 2009 17:40:35 EST news171563990 Known for their wide variety of vibrant plumage, birds have evolved various chemical and physical mechanisms to produce these beautiful colors over millions of years. A team of paleontologists and ornithologists led by Yale University has now discovered evidence of vivid iridescent colors in feather fossils more than 40 million years old. http://www.physorg.com/news170494542.html Other Sciences Wed, 26 Aug 2009 08:36:09 EST news170494542 (PhysOrg.com) -- Today, scientists at IBM Research and the California Institute of Technology announced a scientific advancement that could be a major breakthrough in enabling the semiconductor industry to pack more power and speed into tiny computer chips, while making them more energy efficient and less expensive to manufacture. http://www.physorg.com/news169796309.html Nanotechnology Tue, 18 Aug 2009 06:39:11 EST news169796309 Physicists have found a way to drastically prolong the shelf life of quantum bits, the 0s and 1s of quantum computers. http://www.physorg.com/news165068877.html Physics Wed, 24 Jun 2009 15:00:01 EST news165068877 (PhysOrg.com) -- In 1983, Richard Feynman proposed the idea of a machine that could create smaller scale replicas of itself. Today, such a system is still a challenge, but a machine that can produce nanometer-sized copies of micrometer-sized objects could prove to be extremely useful in modern nanotechnologies. http://www.physorg.com/news163074546.html Nanotechnology Mon, 01 Jun 2009 11:29:52 EST news163074546 (PhysOrg.com) -- An ultra-powerful laser can turn regular incandescent light bulbs into power-sippers, say optics researchers at the University of Rochester. The process could make a light as bright as a 100-watt bulb consume less electricity than a 60-watt bulb while remaining far cheaper and radiating a more pleasant light than a fluorescent bulb can. http://www.physorg.com/news162821951.html Physics Fri, 29 May 2009 13:20:03 EST news162821951 (PhysOrg.com) -- First, Cornell researchers created DNA "bar codes" -- strands of the genetic material that quickly identify the presence of different molecules by fluorescing. Now, they have created new DNA molecules that can detect pathogens and deliver drugs to cells when they form long chains called polymers. http://www.physorg.com/news162057240.html Nanotechnology Wed, 20 May 2009 16:54:41 EST news162057240 (PhysOrg.com) -- Material scientists at Washington University in St. Louis have developed a technique for a bimetallic fuel cell catalyst that is efficient, robust and two to five times more effective than commercial catalysts. The novel technique eventually will enable a cost effective fuel cell technology, which has been waiting in the wings for decades, and should give a boost for cleaner use of fuels worldwide. http://www.physorg.com/news161529265.html Nanotechnology Thu, 14 May 2009 14:14:53 EST news161529265 Engineers at Oregon State University have discovered a way to use an ancient life form to create one of the newest technologies for solar energy, in systems that may be surprisingly simple to build compared to existing silicon-based solar cells. http://www.physorg.com/news158418975.html Nanotechnology Wed, 08 Apr 2009 14:16:51 EST news158418975