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. Using a technique that provides detailed images of nanoscale structures, researchers at the University of Michigan and Detroit's Henry Ford Hospital have discovered changes in the collagen component of bone that directly relate to bone health. http://www.physorg.com/news180721167.html Medicine & Health Tue, 22 Dec 2009 16:50:05 EST news180721167 (PhysOrg.com) -- Scientists at Georgia Tech have developed a nanolithographic technique that can produce high-resolution patterns of at least three different chemicals on a single chip at writing speeds of up to one millimeter per second. The chemical nanopatterns can be tailor-designed with any desired shape and have been shown to be sufficiently stable so that they can be stored for weeks and then used elsewhere. The technique, known as Thermochemical Nanolithography is detailed in the December 2009 edition of the journal Advanced Functional Materials. The research has applications in a number of scientific fields from electronics to medicine. http://www.physorg.com/news180162467.html Nanotechnology Wed, 16 Dec 2009 05:08:15 EST news180162467 (PhysOrg.com) -- By producing some of the highest resolution images of peptides attaching to mineral surfaces, scientists have a deeper understanding how biomolecules manipulate the growth crystals. This research may lead to a new treatment for kidney stones using biomolecules. http://www.physorg.com/news178212559.html Nanotechnology Mon, 23 Nov 2009 15:29:56 EST news178212559 A doctoral student at the research center Forschungszentrum Dresden-Rossendorf (Germany) suggests interpreting the images generated by Kelvin probe force microscopy in a new way. She recently published her insights in the journal Physical Review B. http://www.physorg.com/news172307152.html Nanotechnology Wed, 16 Sep 2009 08:06:33 EST news172307152 (PhysOrg.com) -- Nanotubes and nanowires are promising building blocks for future integrated nanoelectronic and photonic circuits, nanosensors, interconnects and electro-mechanical nanodevices. But some fundamental issues remain to be resolved - among them, how to position and manipulate the tiny tubes. http://www.physorg.com/news172231468.html Nanotechnology Tue, 15 Sep 2009 11:04:58 EST news172231468 (PhysOrg.com) -- For the first time, IBM researchers in Zurich, Switzerland, have taken a 3D image of an individual molecule. Using an atomic force microscope, the researchers constructed a "force map" of pentacene, an organic molecule just 1.4 nanometers long. As the researchers explain, the technique is roughly analogous to how an x-ray machine images bones in the human body by looking through flesh. In this case, the scientists could look through the electron cloud and see the atomic backbone of the molecule. http://www.physorg.com/news170685108.html Nanotechnology Fri, 28 Aug 2009 13:34:27 EST news170685108 (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 It's well known that the protein calmodulin specifically targets and steers the activities of hundreds of other proteins - mostly kinases - in our cells, thus playing a role in physiologically important processes ranging from gene transcription to nerve growth and muscle contraction But just how it distinguishes between target proteins is not well understood. Methods developed by biophysicists at the Technische Universitaet Muenchen (TUM, Germany) have enabled them to manipulate and observe calmodulin in action, on the single-molecule scale. http://www.physorg.com/news169137245.html Chemistry Mon, 10 Aug 2009 16:20:02 EST news169137245 (Aug. 6, 2009) -- Rice University physicists have written the next chapter in an innovative approach for studying the forces that shape proteins -- the biochemical workhorses of all living things. http://www.physorg.com/news168791338.html Chemistry Thu, 06 Aug 2009 15:40:01 EST news168791338 (PhysOrg.com) -- 'Bullet fingerprinting' technology developed at the University of Leicester in collaboration with Northamptonshire Police is now being advanced in new ways. http://www.physorg.com/news166427660.html Chemistry Sun, 12 Jul 2009 19:30:01 EST news166427660 Where biology, chemistry and physics intersect, a Kansas State University professor expects to find applications to improve human health. http://www.physorg.com/news166105190.html Nanotechnology Mon, 06 Jul 2009 13:32:17 EST news166105190 Miniature devices for trapping ions (electrically charged atoms) are common components in atomic clocks and quantum computing research. Now, a novel ion trap geometry demonstrated at the National Institute of Standards and Technology could usher in a new generation of applications because the device holds promise as a stylus for sensing very small forces or as an interface for efficient transfer of individual light particles for quantum communications. http://www.physorg.com/news165668548.html Physics Wed, 01 Jul 2009 12:02:59 EST news165668548 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 (PhysOrg.com) -- IBM scientists in collaboration with the University of Regensburg, Germany, and Utrecht University, Netherlands, for the first time demonstrated the ability to measure the charge state of individual atoms using noncontact atomic force microscopy. Measuring with the precision of a single electron charge and nanometer lateral resolution, researchers succeeded in distinguishing neutral atoms from positively or negatively charged ones. http://www.physorg.com/news164996346.html Nanotechnology Tue, 23 Jun 2009 17:19:39 EST news164996346 It is a mystery to many people why the world is running out of oil when most of the world's oilfields have only been half emptied. However some of the oil that has been located is trapped as droplets of oil in small cavities in the surrounding rock or is stuck to the walls of the underground cavity and cannot be accessed by the techniques currently used in the oil industry. http://www.physorg.com/news161257391.html Space & Earth Mon, 11 May 2009 10:45:34 EST news161257391 (PhysOrg.com) -- Scientists know that cancerous cells and normal cells have different physical features, but the details of these differences, and why they occur, are not well understood. In a recent edition of Nature Nanotechnology, researchers report measurements of certain physical differences between the surfaces of normal and cancerous cells, suggesting a new way to characterize cancer cells and a possible route for detection. http://www.physorg.com/news160716698.html Nanotechnology Tue, 05 May 2009 04:32:02 EST news160716698 Kansas State University engineers think the possibilities are deep for a very thin material. http://www.physorg.com/news158850916.html Nanotechnology Mon, 13 Apr 2009 14:16:07 EST news158850916 Chemists at the University of Illinois have created a simple and inexpensive molecular technique that replaces an expensive atomic force microscope for studying what happens to small molecules when they are stretched or compressed. http://www.physorg.com/news157558598.html Nanotechnology Sun, 29 Mar 2009 15:17:19 EST news157558598 (PhysOrg.com) -- Forget dancing angels, a research team from the National Institute of Standards and Technology (NIST) and the University of Colorado (CU) has shown how to detect and monitor the tiny amount of light reflected directly off the needle point of an atomic force microscope probe, and in so doing has demonstrated a 100-fold improvement in the stability of the instrument`s measurements under ambient conditions. Their recently reported work* potentially affects a broad range of research from nanomanufacturing to biology, where sensitive, atomic-scale measurements must be made at room temperature in liquids. http://www.physorg.com/news157206337.html Nanotechnology Wed, 25 Mar 2009 13:26:26 EST news157206337 (PhysOrg.com) -- University of Pittsburgh researchers have created a nanoscale one-stop shop, a single platform for creating electronics at a nearly single-atom scale that could yield advanced forms of such technologically important devices as high-density memory devices and -most importantly -transistors and computer processors. This multitude of uses stems from a technique previously developed by the same team to fashion rewritable nanostructures at the interface between two insulating materials. In the Feb. 20 edition of Science, the researchers demonstrate this process' various applications. http://www.physorg.com/news154277470.html Nanotechnology Thu, 19 Feb 2009 14:53:29 EST news154277470 (PhysOrg.com) -- A joint team of researchers at CIC nanoGUNE (San Sebastian, Spain) and the Max Planck Institutes of Biochemistry and Plasma Physics (Munich, Germany) report the non-invasive and nanoscale resolved infrared mapping of strain fields in semiconductors. The method, which is based on near-field microscopy, opens new avenues for analyzing mechanical properties of high-performance materials or for contact-free mapping of local conductivity in strain-engineered electronic devices (Nature Nanotechnology, advanced online publication, 11 Jan. 2009). http://www.physorg.com/news151930864.html Nanotechnology Fri, 23 Jan 2009 11:01:37 EST news151930864 (PhysOrg.com) -- A joint team of researchers at CIC nanoGUNE (San Sebastian, Spain) and the Max Planck Institutes of Biochemistry and Plasma Physics (Munich, Germany) report the non-invasive and nanoscale resolved infrared mapping of strain fields in semiconductors. The method, which is based on near-field microscopy, opens new avenues for analyzing mechanical properties of high-performance materials or for contact-free mapping of local conductivity in strain-engineered electronic devices (Nature Nanotechnology, advanced online publication, 11 Jan. 2009). http://www.physorg.com/news150998994.html Nanotechnology Mon, 12 Jan 2009 16:09:54 EST news150998994