Researchers image molecular motor structural changes
...imes their original size. Electron microscopes use beams of electrons instead of light to produce images. The images recorded on electron microscope films are two-dimensional, but three-dimensional structures of the proteins can be calculated by computer image processing. Keiko Hirose, Ph.D., a researcher...Nanoparticle assembly enters the fast lane
...anosystems with multiple imaging techniques, using beams of light and electrons as well as high-intensity x-rays at Brookhaven's National Synchrotron Light Source. The scientists look to further improve the controllability of the system, focusing next on the size of the nanoparticle clusters....Nano competition debuts at Oak Ridge National Laboratory
...s of materials at a molecular level using powerful beams of neutrons. Next door, the recently finished $65 million Center for Nanophase Materials Sciences provides world-class instrumentation, expertise, fabrication, synthesis, characterization and modeling capabilities for nanoscale materials. The center ...Scientists convert modern enzyme into its hypothesized ancestor
...ular-level crystal structures using high intensity beams of x-rays at the National Synchrotron Light Source at Brookhaven Lab and the MAX Lab at the University of Lund Synchrotron in Sweden. These crystal structures revealed remarkable similarities, with the single major difference being a change in one a...Seeing a neurotoxin's deadly grip
...raphy, protein crystals are bombarded with intense beams of x-rays. As the x-rays pass through and bounce off of atoms in the crystal, they leave a diffraction pattern, which can then be analyzed to determine the three-dimensional shape of the protein. Both groups discovered that the toxin holds its recept...Chemical switch triggers critical cell activities
...roteins with X-rays and use the patterns formed by beams bouncing off the crystals to create computer-generated 3-D images of the molecules. The goal was to create a freeze-frame image that captured the fleeting moment when E2 is next to NEDD8, just before it falls off and carries NEDD8 with it. To do t...Story tips from the Department of Energy's Oak Ridge National Laboratory
...urations, the reflectometers are receiving neutron beams intense enough to saturate the detectors, even operating at 2 percent of the SNS's eventual 1.4 megawatts of power. All in all, these early accomplishments mark a promising beginning to decades of neutron science. [Contact: Bill Cabage, (865) 574-439...UAF researchers garner $6.5 million in NSF grants
...on does, but at much greater elevations. The lidar beams reach 25 to 50 miles high. The studys goal is to better understand the structure of the stratospheric vortex, understand possible connections between weather in the stratosphere and at the ground and establish a benchmark of measurements for asses...New way to catch cancer's spread, rapid 3-D retinal imaging, more at CLEO/QELS 2007
...ning Atoms with Light." He will describe how laser beams can transfer a property known as orbital angular momentum to groups of atoms. This achievement opens up new possibilities for data storage and computing. The keynote for the CLEO/QELS collocated conference, Photonics Applications, Systems and Techn...Diffraction and scattering -- the solution to what's in solution
... source of the APS X-rays. For this research, thin beams of high-energy X-rays were used to bombard the dissolved ions. When the X-rays scattered off the solutions, special CCD cameras equipped to detect them mapped out their two-dimensional pattern. The detailed results of these findings were published ...New imaging approach promises insights into multiple sclerosis
...cific frequencies. In a CARS microscope, two laser beams are overlapped to produce a single beam having a new frequency representing the difference between the original two beams. This new frequency then drives specific molecules to vibrate together "in phase," amplifying the Raman signals from those molec...Catching cancer's spread by watching hemoglobin
...emoglobin distribution, the researchers scan laser beams across the sample, a process that then reveals the outlines and contours of blood vessels. By taking images at different depths and stacking these images layer by layer, the researchers can reconstruct 3-D images of blood vessels. A major advanta...Manchester to spearhead 8.3 million particle physics project
...waste. Particle accelerators are used to produce beams of charged particles such as protons or electrons,...effective therapies." Professor Barlow adds that beams of protons or heavier particles such as carbon ions can deposit much more radiation directly in the ...Decoding protein structures helps illuminate cause of diabetes
...ut their organization, Zanni says. Infrared laser beams can detect the minute vibrations and identify char...e first device capable of designing infrared laser beams with a computer. The team has now simplified and speeded up the process with an automated version o...Giant magnetocaloric materials could have large impact on the environment
...y used high-brilliance, circularly-polarized X-ray beams at the Advanced Photon Source to probe the magnetism of gadolinium and germanium ions as the material underwent its bond-breaking magneto-structural transition. In addition to the expected strong magnetization of gadolinium ions, the researchers foun......n. To fully understand the neutrino, Lesko said beams of neutrinos originating from Fermilab, outside of Chicago, can be sent through nearly a thousand miles of rock to large detectors in Homestake. These detectors will search for evidence of a rare physical process, known as leptonic CP violation, that...