Researchers find color sensitive atomic switch in bacteria
...ng extremely high resolution imaging have found an atomic switch capable of discriminating color in a bacterial membrane protein. In a paper posted today on Science Express, the rapid advance publication page of Science, scientists from The University of Texas Medical School at Houston and the University of...Secretary of Energy announces seven E.O. Lawrence Award Winners
...ding contributions in the broadly defined field of atomic energy. "We are all enriched by the contributions these researchers have made ranging from engines with no moving parts to better ways to see the stars," Secretary Abraham said. "These awards, and the research for which they are given, show that D...Northeastern University receives $12.4 million NSF grant for creation of nanomanufacturing institute
... Nanotechnology the application of science at the atomic and molecular level -- is among the fastest growing and hottest sectors in industry today. At Northeastern, where the nanotech and biotech initiatives are new but expanding rapidly, a strong emphasis has been placed on this emerging technology with t...Peering inside the body, with a new spinliterally
... a sample based on the frequencies of the sample's atomic nuclei as they jiggle in a strong magnetic field. NMR pioneers noticed more than a half-century ago that they could get better spectral resolution if they spun a sample at a 54.74-degree angle to the magnetic field. The faster they spun a sample orie...New evidence of radiation risk in childhood leukaemia
... were found in those exposed at a young age to the atomic bombs in Japan. And those receiving radiation in utero from maternal X-rays have also been shown to be at higher risk of developing leukaemia. But it has only recently been recognised that ionising radiation not only increases mutation rates in the e...Gold quantum dots have applications in biological labeling, nanoscale optics
...antum dots. Providing the "missing link" between atomic and nanoparticle behavior in noble metals, these m...ded. "They can provide the 'missing link' between atomic and nanoparticle behavior in these metals."...Scientists visualise cellular handmaiden that restores shape to proteins
... Protein Data Bank. It has more than six digits of atomic coordinates, or over a million atoms in the structure mapped and plotted in 3D space. Professor Iwata is well known for solving the structure of proteins embedded in the membrane of cells, such as the crucial photosynthesis enzyme Photosystem II, pub...ASU researchers demonstrate new technique that improves the power of atomic force micrscopy
... a method that could vastly improve the ability of atomic force microscopes to "see" the chemical compositio...ics and astronomy said the new technique allows an atomic force microscope to "see," on a nanometer scale, the chemical composition of molecules. "Atomic for...Emory researchers map structure of anti-cancer molecule
... data allowed them to "see" the differences in the atomic positions associated with the two drugs that explained their activities within a cell. The work involved using computers to test thousands of possible solutions against the diffractions along with extensive biological data regarding drug activity. ...UC Riverside researcher takes snapshots of the movement of molecules in a billionth of a second
... to take extremely fast snapshots of molecular and atomic movement. The development is considered a signific...e capability of reaching down to the time scale of atomic events. "There has been considerable interest in the very challenging problem of combining the...Ecologist calls for creation of an international panel to assess human behavior
...'s about 10 times as long as it took to create the atomic bomb. ''One of the few remaining places where the United States leads the world is in its great research universities, but they are in severe danger of sinking under the weight of the conservatism of the majority of their faculties,'' he continued. ...U of T research answers key question in biochemistry
...become the first researchers to characterize at an atomic level of detail the intermediate -- or substructure -- that forms as a protein folds to its 3-D state. "Understanding how proteins fold is one of the Holy Grails of biochemistry," says Kay. "The intermediates that we can study make up only o...EC boosts European electron microscopy research
...maging of macromolecules and molecular machines at atomic resolution, with the prospect of a 3D imaging of cell organelles and whole cells. The determination of the 3D structure of macromolecules (as e.g. proteins), of their interactions and their localisation in cells is essential for the understanding of...Crystal structure for anthrax-cell binding complex
...rystal structure of the PA-CMG2 binding complex at atomic resolution, which makes it possible to design small molecules that will interact with PA and prevent the binding complex from forming. Soluble forms of the receptors have indeed acted as decoys, distracting PA from binding both receptors. The two re...New milestones on the path to conquering HIV drug resistance (AIDS)
...rom crystals are used to map the three-dimensional atomic structure of large molecules. "We have been fighting this battle together for more than 15 years," said Hughes. "We are both very excited about developing a better understanding of the fundamental biology of HIV and, even though it is a deadly enem...Strengthening independent junior research groups in collaborative research centres
...nd neutrons, the elementary building blocks of the atomic nuclei in everything around us. To test the underl...red with which electrons, for example, are shot at atomic nuclei. The electron beam assumes the function of a light beam in an ordinary microscope. An importa...Molecular image of genotoxin reveals how bacteria damage human DNA
...ith a drug molecule," said Stebbins. Armed with an atomic model of a protein, scientists can program computers to screen virtual representations of millions of compounds to see if they have a good chance of interacting with the target. Compounds are narrowed down to a selected few, which are then tested to ...High Flux Isotope Reactor marks 400th cycle
...g the structure and properties of materials at the atomic scale. The technique was developed at ORNL in the 1950s by Cliff Shull and Ernie Wollan. Shull later won the Nobel Prize in Physics for this work. The reactor also produces radioisotopes used in nuclear medicine. HFIR is the only domestic source of ......s laboratoryused scanning tunneling microscopy and atomic force microscopy toplace eight molecules of the protein lysozyme in a square about 100nanometers across on a gold surface. By reducing the size of dots ingene or protein chips, the number of potential tests per device couldbe hugely increased.......luorescence lifetime imaging microscopy, with AFM, atomic force microscopy. A blurry, pixilated FLIM image shows a cluster of florescence-tagged DNA molecules about one micrometer long. When FLIM is combined with an AFM technique that employs a gold-tipped silicon wand that can probe a sample without harmin...