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. Scientists have crystallised a protein that may help gut bacteria bind to the gastrointestinal tract. The protein could be used by probiotic producers to identify strains that are likely to be of real benefit to people. http://www.physorg.com/news178285643.html Chemistry Tue, 24 Nov 2009 12:00:01 EST news178285643 Two new studies reveal in unprecedented detail how the ribosome interacts with other molecules to assemble new proteins and guide them toward their destination in biological cells. The studies used molecular dynamics flexible fitting (MDFF) to examine the interaction of the ribosome with two prominent molecular partners. http://www.physorg.com/news178207518.html Biology Mon, 23 Nov 2009 14:20:41 EST news178207518 There is good news for the global effort to reduce the amount of lead in the environment and for the growing array of technologies that rely upon the piezoelectric effect. A lead-free alternative to the current crop of piezoelectric materials has been identified by researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California, Berkeley. http://www.physorg.com/news177340310.html Physics Fri, 13 Nov 2009 13:18:46 EST news177340310 Engineers at the University of Leeds have developed a simple technology which can be used in existing chemical reactors to ensure "right first time" drug crystal formation. http://www.physorg.com/news177155940.html Chemistry Wed, 11 Nov 2009 10:08:02 EST news177155940 (PhysOrg.com) -- Harvard materials scientists have come up with what they believe is a new way to model the formation of glasses, a type of amorphous solid that includes common window glass. http://www.physorg.com/news176567658.html Physics Wed, 04 Nov 2009 14:35:06 EST news176567658 In new papers appearing this month in Science and the Proceedings of the National Academy of Sciences, University of Illinois biochemistry professor Raven H. Huang and his colleagues describe the first RNA repair system to be discovered in bacteria. This is only the second RNA repair system discovered to date (with two proteins from T4 phage, a virus that attacks bacteria, as the first). http://www.physorg.com/news174582545.html Biology Mon, 12 Oct 2009 16:10:42 EST news174582545 (PhysOrg.com) -- Researchers say they have found a simple way to improve the semiconducting properties of the world`s thinnest material - by giving it a good tug. http://www.physorg.com/news173340834.html Nanotechnology Mon, 28 Sep 2009 07:14:30 EST news173340834 (PhysOrg.com) -- New York University chemists have created three-dimensional DNA structures, a breakthrough bridging the molecular world to the world where we live. The work, reported in the latest issue of the journal Nature, also has a range of potential industrial and pharmaceutical applications, such as the creation of nanoelectronic components and the organization of drug receptor targets to enable illumination of their 3D structures. http://www.physorg.com/news171119747.html Chemistry Wed, 02 Sep 2009 15:00:01 EST news171119747 (PhysOrg.com) -- Stanford researchers have developed a method of stacking and purifying crystal layers that may pave the way for three-dimensional microchips. http://www.physorg.com/news170527247.html Nanotechnology Wed, 26 Aug 2009 17:41:21 EST news170527247 (PhysOrg.com) -- Engineers have developed a new method for creating high-performance membranes from crystal sieves called zeolites; the method could increase the energy efficiency of chemical separations up to 50 times over conventional methods and enable higher production rates. http://www.physorg.com/news168187670.html Chemistry Thu, 30 Jul 2009 15:48:42 EST news168187670 Carbon dioxide is a molecular gas at ambient conditions and an important consitituent of the Earth`s atmosphere. It is also a likely component in the Earth`s mantle, and it plays an important role in the life cycle. But at high pressure, carbon dioxide can transform to a solid. http://www.physorg.com/news157226016.html Physics Wed, 25 Mar 2009 18:54:26 EST news157226016 (PhysOrg.com) -- Roman artefacts which are nearly two thousand years old with similarities to ancient remains found at Pompeii in Italy will be examined at the Science and Technology Facilities Council`s ISIS neutron source this weekend. (21-22 February 2009). Researchers hope to learn more about our heritage by discovering whether the items were imported from southern Italy, or manufactured using similar techniques in Britain. http://www.physorg.com/news154360692.html Other Sciences Fri, 20 Feb 2009 13:58:43 EST news154360692 The structure, described February 8 in an advance online publication of the journal Nature, provides fresh insights into the elegant dance that viral proteins perform to create the infectious structure that causes all manner of misery and disease, say researchers. While the virus they studied, HK97, only infects bacteria, well-known viruses such as herpes and HIV are also known to assemble an "intermediary" structure before morphing into its final assault-proof, infectious form. http://www.physorg.com/news153323957.html Biology Sun, 08 Feb 2009 14:00:14 EST news153323957 (PhysOrg.com) -- Researchers at the National Institute of Standards and Technology have discovered that a carefully built magnetic sandwich that interleaves layers of a magnetic alloy with a few nanometers of silver `spacer` has dramatically enhanced sensitivity -a 400-fold improvement in some cases. This material could lead to greatly improved magnetic sensors for a wide range of applications from weapons detection and non-destructive testing to medical devices and high-performance data storage. http://www.physorg.com/news152380708.html Physics Wed, 28 Jan 2009 15:58:58 EST news152380708 Scientists at Burnham Institute for Medical Research (Burnham) have determined the structure of the interactions between proteins that form the heart of the death inducing signaling complex (DISC), which is responsible for triggering apoptosis (programmed cell death). http://www.physorg.com/news150393102.html Biology Mon, 05 Jan 2009 15:51:42 EST news150393102 It may very well be that models used for the design of new drugs have to be regarded as impractical. This is the sobering though important conclusion of the work of two Leiden University scientists published in Science this week. The editorial board of the renowned journal even decided to accelerate the publication on the crystal structure of the adenosine A2A receptor via Science Express. http://www.physorg.com/news142185485.html Chemistry Thu, 02 Oct 2008 16:58:05 EST news142185485