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A broad range of molecules can now be used as magnetic resonance imaging (MRI) contrast agents, significantly improving MRI sensitivity.The University of York research enables the magnetization of molecules such as pyridine or nicotinic acid (found in many drugs). These polarized drugs or marker molecules are highly visible in MRI scans.Gary Green, York Neuroimaging Centre Director: "you might use the technique to polarize the molecule that you kn... More
KurzweilAI.net news made popular on March 27 2009 by Thoughtbot
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Researchers used lubricating layers of "molecular brushes" to build artificial cartilage that outperforms natural cartilage under the highest pressures encountered within bone joints.Currently the synthetic cartilage used in artificial joints matches cartilage's slippery properties at low pressures, but it can seize up at higher pressures. (Source: http://www.newscientist.com/article/dn16849-artificial-cartilage-performs-better-than-the-real-thi... More
KurzweilAI.net news made popular on March 27 2009 by Thoughtbot
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(American Friends of Tel Aviv University) Dewdrop-sized motes serve as invisible security guards.
Eurekalert.org news made popular on March 26 2009 by Thoughtbot
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(Rensselaer Polytechnic Institute) Professor Nikhil Koratkar of Rensselaer Polytechnic Institute has demonstrated that incorporating chemically treated carbon nanotubes into an epoxy composite can significantly improve the overall toughness, fatigue resistance and durability of a composite frame. The discovery could lead to tougher, more durable composite frames for aircraft, watercraft and automobiles.
Eurekalert.org news made popular on March 26 2009 by Thoughtbot
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Asteroids could be nudged away from a a collision course with Earth by a small nuclear explosion or by using lasers to vaporize a region, creating a plume of gas that should provide enough thrust to push the asteroid off course, according to Lawrence Livermore National Laboratory and University of Glasgow scientists. (Source: http://www.newscientist.com/article/mg20127015.600-how-to-save-the-world-from-an-asteroid-impact.html?DCMP=OTC-rss&nsref... More
KurzweilAI.net news made popular on March 26 2009 by Thoughtbot
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Physicist Freeman Dyson dismisses the threat of global warming -- an ultimately benign occurrence in what Dyson says is still "a relatively cool period in the earth's history." Rising carbon-dioxide levels in the atmosphere are a sign that "the climate is actually improving rather than getting worse," because carbon acts as an ideal fertilizer promoting forest growth and crop yields.If needed, carbon-eating trees could be genetically engineered to... More
KurzweilAI.net news made popular on March 26 2009 by Thoughtbot
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The National Ignition Facility (NIF), a laser system designed to produce nuclear fusion reactions that release more energy than used to produce them, is now up and running.By 2010 or 2011 the NIF's 192 lasers will be able to deliver 1.8 megajoules of energy in a few billionths of a second to one 2-millimeter sphere filled with hydrogen isotopes. The energy will ignite a fusion reaction and generate at least 10 times the energy delivered by the las... More
KurzweilAI.net news made popular on March 26 2009 by Thoughtbot
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Researchers at Children's Hospital Boston have built a microdevice to fight sepsis (blood infection), using magnetism to remove pathogens from blood.(Johnson & Yung, CHB)They mixed blood with antibody-coated magnetic beads and sent the mix through microfluidic channels. A magnet pulled the bound pathogens out. Most current treatments for sepsis are ineffective: each year it kills over 200,000 people in the U.S. (Source: http://www.physorg.com/ne... More
KurzweilAI.net news made popular on March 26 2009 by Thoughtbot
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(Elsevier) Elsevier announced today, that Biomaterials, the leading journal in the field of biomaterials science, will host Biomaterials Asia 2009 in Hong Kong from April 5-8 to highlight the latest Asian research developments, institutions and individuals in biomaterials science.
Eurekalert.org news made popular on March 26 2009 by Thoughtbot
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(Rice University) Two lasers may be better than one when attacking cancer cells, according to a paper by Rice University scientists, who are using computer simulations to quantify the effect of heating nanoparticles with near-infrared lasers to kill cancer tumors without damaging healthy tissue.
Eurekalert.org news made popular on March 25 2009 by Thoughtbot
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(Children's Hospital Boston) An innovative new device created by researcher's at Children's Hospital Boston uses magnetism to quickly pull disease pathogens out of an infected bloodstream. The device could become a first-line defense for blood infections like sepsis, which causes over 200,000 deaths in the US per year.
Eurekalert.org news made popular on March 25 2009 by Thoughtbot
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(National Institute of Standards and Technology (NIST)) A research team from NIST and the University of Colorado 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, work that potentially affects a broad range of research from nanoman... More
Eurekalert.org news made popular on March 25 2009 by Thoughtbot
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(DOE/Brookhaven National Laboratory) Scientists at the US Department of Energy's Brookhaven National Laboratory have developed a method for coating metal surfaces with an ultrathin film containing nanoparticles -- particles measuring billionths of a meter -- which renders the metal resistant to corrosion and eliminates the use of toxic chromium for this purpose.
Eurekalert.org news made popular on March 25 2009 by Thoughtbot
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Stable biocompatible gold nanorods that deliver short RNA molecules in the brain to "silence" or turn off DARPP-32, a gene that plays a critical role in many kinds of drug addiction, have been developed by University at Buffalo researchers. (Source: http://www.physorg.com/news157053913.html)
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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Google has given its Web search engine an injection of semantic technology to identify associations and concepts related to a query, improving the list of related search terms Google displays along with its results, instead of simply analyzing keywords without understanding their meaning."For example, if you search for 'principles of physics,' our algorithms understand that 'angular momentum,' 'special relativity,' 'big bang' and 'quantum mechanic... More
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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President Obama announced Monday that additional money would be provided for research in renewable energy in areas such as wind, solar, biofuels and hydrogen. The funding is in addition to tax credits and spending approved in the recently passed economic stimulus package. (Source: http://www.physorg.com/news157120786.html)
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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Researchers at Penn State and the Sigma-Aldrich company have found a way to control geometry and stability in making a self-assembled monolayer (SAM) of molecules on a surface by making SAMs out of different carboranethiol isomers, which are cage-like molecules.These SAMs can selectively capture biomolecules from complex mixtures, for example. (Source: http://www.physorg.com/news157135442.html)
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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Men and women who eat higher amounts of red meat and processed meat have a higher risk of dying from cancer, heart disease, and other causes compared to those who eat less, according to a new ten-year study by University of North Carolina School of Public Health supported by the National Cancer Institute.Possible reasons: The meats are a source of carcinogens formed during cooking. The iron in red meat may increase oxidative cell damage, leading t... More
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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An international team of scientists in Europe has created a silicon chip designed to function like a human brain, with 200,000 "neurons" linked up by 50 million "synaptic connections."(Karlheinz Meier)A neuron circuit typically consists of about 100 components, while a synapse requires only about 20; they can operate in parallel and about 100,000 times faster than a real human brain. The hope of the Fast Analog Computing with Emergent Transient St... More
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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Microsoft and NASA plan to make planetary images and data -- including high-resolution scientific images and data from Mars and the moon --explorable on Microsoft's online virtual WorldWide Telescope.The WorldWide Telescope assembles imagery from ground- and space-based telescopes for a seamless, rich media-guided exploration of the universe. (Source: http://news.cnet.com/8301-17939_109-10203360-2.html)
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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Wallpaper with changing designs, bulbless lamps that shed light from their shades, and scrolls that unroll to become flexible full-color displays are a few of the new devices the approaching era of printed electronics could bring. (Source: http://www.newscientist.com/article/dn16831-innovation-a-licence-to-print-gadgets.html?DCMP=OTC-rss&nhttp://www.newscientist.com/article/dn16831-innovation-a-licence-to-print-gadgets.html?DCMP=OTC-rss&nsref=on... More
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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The normal mechanisms people use to evaluate risk and reward are not being used when you have an expert telling you what to do, Gregory Berns, a neuroeconomist at Emory University, and his team found in brain imaging studies. (Source: http://www.newscientist.com/article/dn16826-brain-quirk-could-help-explain-financial-crisis.html?DCMP=OTC-rss&nsref=online-news)
KurzweilAI.net news made popular on March 25 2009 by Thoughtbot
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(DOE/Pacific Northwest National Laboratory) With a splash of UV light, titanium dioxide can break down contaminants for environmental cleanup or split water for hydrogen fuel production. Researchers would like to expand titanium dioxide's repertoire to use visible light. PNNL's Michael Henderson will talk about the importance of the form titanium dioxide takes in accomplishing this.
Eurekalert.org news made popular on March 24 2009 by Thoughtbot
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(Virginia Commonwealth University) A team of scientists from Virginia Commonwealth University, the University of Uppsala in Sweden, and the Savannah River National Laboratory have identified that carbon nanostructures can be used as catalysts to store and release hydrogen, a finding that may point researchers toward developing the right material for hydrogen storage for use in cars.
Eurekalert.org news made popular on March 24 2009 by Thoughtbot
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(University at Buffalo) A precise, new nanotechnology treatment for drug addiction may be on the horizon as the result of research conducted at the University at Buffalo.
Eurekalert.org news made popular on March 24 2009 by Thoughtbot
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