Chemistry Source: Duke University
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Tuesday, Apr 23, 2013, 2:00pm Rating: | Views: 1813 | Comments: 0
Video: Scientists produce best image yet of atoms moving in real time Call it the ultimate nature documentary. Scientists at the University of Toronto have recorded atomic motions in real time, offering a glimpse into the very essence of chemistry and biology at the atomic level.
Physics Source: University of Toronto
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Thursday, Apr 18, 2013, 11:45am Rating: | Views: 2878 | Comments: 0
Researchers measure reaction rates of second key atmospheric component Researchers at Sandia National Laboratories' Combustion Research Facility, the University of Manchester, Bristol University, University of Southampton and Hong Kong Polytechnic have successfully measured reaction rates of a second Criegee intermediate, CH3CHOO, and proven that the reactivity of the atmospheric chemical depends strongly on which way the molecule is twisted.
Chemistry Source: DOE/Sandia National Laboratories
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Friday, Apr 12, 2013, 11:15am Rating: | Views: 1919 | Comments: 0
Blockade of pathogen's metabolism In the search for new antibiotics, researchers are taking an unusual approach: They are developing peptides, short chains of protein building blocks that effectively inhibit a key enzyme of bacterial metabolism. Now, scientists at the Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) in Saarbrücken, a branch of the Helmholtz Center for Infection Research (HZI), have published their f
Chemistry Source: Helmholtz Centre for Infection Research
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Wednesday, Apr 10, 2013, 12:45pm Rating: | Views: 1699 | Comments: 0
Surprising predictor of ecosystem chemistry Carnegie scientists have found that the plant species making up an ecosystem are better predictors of ecosystem chemistry than environmental conditions such as terrain, geology, or altitude. This is the first study using a new, high-resolution airborne, chemical-detecting instrument to map multiple ecosystem chemicals. The result, published in the April 8, 2013, Early Edition of
Scientists illuminate elusive mechanism of widely used click reaction Scientists at The Scripps Research Institute (TSRI) have illuminated the mechanism at the heart of one of the most useful processes in modern chemistry. A reaction that is robust and easy to perform, it is widely employed to synthesize new pharmaceuticals, biological probes, new materials and other products. But precisely how it works had been unclear since its inven
Chemistry Source: Scripps Research Institute
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Friday, Apr 05, 2013, 11:00am Rating: | Views: 1593 | Comments: 0
Advance could bring Hydrogen to the alternative energy market A team of Virginia Tech researchers has discovered a way to extract large quantities of hydrogen from any plant, a breakthrough that has the potential to bring a low-cost, environmentally friendly fuel source to the world.
Chemistry Source: Virginia Tech
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Thursday, Apr 04, 2013, 5:00pm Rating: | Views: 1768 | Comments: 0
Crucial step in human DNA replication observed for the first time For the first time, an elusive step in the process of human DNA replication has been demystified by scientists at Penn State University. According to senior author Stephen J. Benkovic, an Evan Pugh Professor of Chemistry and Holder of the Eberly Family Chair in Chemistry at Penn State, the scientists "discovered how a key step in human DNA replication is performed." The results of the research wil
Molecular Biology Source: Penn State
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Tuesday, Apr 02, 2013, 11:45am Rating: | Views: 2300 | Comments: 0
Light may recast copper as chemical industry 'holy grail' Wouldn't it be convenient if you could reverse the rusting of your car by shining a bright light on it? It turns out that this concept works for undoing oxidation on copper nanoparticles, and it could lead to an environmentally friendly production process for an important industrial chemical, University of Michigan engineers have discovered.
Chemistry Source: University of Michigan
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Friday, Mar 29, 2013, 8:45am Rating: | Views: 1668 | Comments: 0
Catalyst in a teacup: New approach to chemical reduction Taking their inspiration from Nature, scientists at the University of New South Wales have developed a new method for carrying out chemical reduction – an industrial process used to produce fuels and chemicals that are vital for modern society.
Chemistry Source: University of New South Wales
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Tuesday, Mar 26, 2013, 8:45am Rating: | Views: 1745 | Comments: 0
Study reveals potential treatments for Ebola and a range of other deadly viruses Illnesses caused by many of the world's most deadly viruses cannot be effectively treated with existing drugs or vaccines. A study published by Cell Press in the March 21 issue of the journal Chemistry & Biology has revealed several compounds that can inhibit multiple viruses, such as highly lethal Ebola virus, as well as pathogens responsible for rabies, mumps, and measles, opening up ne
Molecular Biology Source: Cell Press
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Friday, Mar 22, 2013, 10:15am Rating: | Views: 1931 | Comments: 0
Thin films of nickel and iron oxides yield efficient solar water-splitting catalyst University of Oregon chemists say that ultra-thin films of nickel and iron oxides made through a solution synthesis process are promising catalysts to combine with semiconductors to make devices that capture sunlight and convert water into hydrogen and oxygen gases.
Chemistry Source: University of Oregon
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Thursday, Mar 21, 2013, 11:15am Rating: | Views: 1602 | Comments: 0
Computer models show how deep carbon could return to Earth's surface Computer simulations of water under extreme pressure are helping geochemists understand how carbon might be recycled from hundreds of miles below the Earth's surface. The work, by researchers at the University of California, Davis, and Johns Hopkins University, is published March 18 in the journal Proceedings of the National Academy of Sciences.
Chemistry Source: University of California - Davis
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Tuesday, Mar 19, 2013, 8:45am Rating: | Views: 1464 | Comments: 0
X-ray laser allows scientists to take live snapshots of chemical reactions An international team under the leadership of Hamburg scientists has observed a catalyst in action on the molecular level with the world's strongest X-ray laser. The study shows surprising details of a chemical reaction and opens up the possibility to see live pictures of these ultrafast processes. For the first time, scientists directly verified a state of transition in which the molecules hover
Chemistry Source: Deutsches Elektronen-Synchrotron DESY
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Friday, Mar 15, 2013, 10:30am Rating: | Views: 1575 | Comments: 0
Catalysts that produce 'green' fuel The energy produced by solar panels, be it heat or electricity, has to be used right away. It is hard to store and preserve and also its transportation can be rather complicated. Creating solar cells capable of producing energy in an easily storable and transportable way, that is to say fuel, is therefore the future challenge of solar energy. For this reason the scientists at SISSA are working on
Chemistry Source: International School of Advanced Studies (SISSA)
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Wednesday, Mar 13, 2013, 11:00am Rating: | Views: 1493 | Comments: 0
Bees get a buzz from caffeine Scientists have today shown that caffeine improves a honeybee's memory and could help the plant recruit more bees to spread its pollen.
Chemistry Source: Newcastle University
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Friday, Mar 08, 2013, 4:00pm Rating: | Views: 1591 | Comments: 0
Fatty acids could lead to flu drug Flu viruses are a major cause of death and sickness around the world, and antiviral drugs currently do not protect the most seriously ill patients. A study published March 7th by Cell Press in the journal Cell reveals that a compound derived from fats found in fish oils prevents death in influenza-virus-infected mice, even at advanced stages of disease. The study offers a promising strategy
Chemistry Source: Cell Press
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Friday, Mar 08, 2013, 12:45pm Rating: | Views: 1361 | Comments: 0
Pour, shake and stir for HIV diagnosis A diagnostic "cocktail" containing a single drop of blood, a dribble of water, and a dose of DNA powder with gold particles could mean rapid diagnosis and treatment of the world's leading diseases in the near future. The cocktail diagnostic is a homegrown brew being developed by University of Toronto's Institute of Biomaterials and Biomedical Engineering (IBBME)
Chemistry Source: University of Toronto Faculty of Applied Science & Engineering
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Friday, Mar 01, 2013, 5:45pm Rating: | Views: 1659 | Comments: 0
Mineral diversity clue to early Earth chemistry Mineral evolution is a new way to look at our planet's history. It's the study of the increasing diversity and characteristics of Earth's near-surface minerals, from the dozen that arrived on interstellar dust particles when the Solar System was formed to the more than 4,700 types existing today. New research on a mineral called molybdenite by a team led by Robert Hazen at Carneg
Geology Source: Carnegie Institution
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Friday, Mar 01, 2013, 5:00pm Rating: | Views: 1650 | Comments: 0
Scientists develop a whole new way of harvesting energy from the sun A new method of harvesting the Sun's energy is emerging, thanks to scientists at UC Santa Barbara's Departments of Chemistry, Chemical Engineering, and Materials. Though still in its infancy, the research promises to convert sunlight into energy using a process based on metals that are more robust than many of the semiconductors used in conventional methods. The
Energy Source: University of California - Santa Barbara
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Monday, Feb 25, 2013, 4:00pm Rating: | Views: 1503 | Comments: 0
Explosives vapor detection technology: The new 'sniff test' A quick, accurate and highly sensitive process to reliably detect minute traces of explosives on luggage, cargo or travelling passengers has been demonstrated by scientists at the Department of Energy's Pacific Northwest National Laboratory. The vapor detection technology accurately detects and identifies the vapors of even very low-volatility explosives in real time at ambient t
Chemistry Source: DOE/Pacific Northwest National Laboratory
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Friday, Feb 22, 2013, 8:30am Rating: | Views: 2294 | Comments: 0
Mosquitoes exposed to DEET once are less repelled by it a few hours later Mosquitoes are able to ignore the smell of the insect repellent DEET within a few hours of being exposed to it, according to research published February 20 in the open access journal PLOS ONE by James Logan, Nina Stanczyk and colleagues from the London School of Hygiene & Tropical Medicine, UK.
Chemistry Source: Public Library of Science
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Thursday, Feb 21, 2013, 2:15pm Rating: | Views: 1477 | Comments: 0
Molecules assemble in water, hint at origins of life The base pairs that hold together two pieces of RNA, the older cousin of DNA, are some of the most important molecular interactions in living cells. Many scientists believe that these base pairs were part of life from the very beginning and that RNA was one of the first polymers of life. But there is a problem. The RNA bases don't form base pairs in water unless they are connected to a polymer bac
Chemistry Source: Georgia Institute of Technology
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Thursday, Feb 21, 2013, 11:30am Rating: | Views: 1320 | Comments: 0
Ancient 'Egyptian blue' pigment points to new telecommunications, security ink technology A bright blue pigment used 5,000 years ago is giving modern scientists clues toward the development of new nanomaterials with potential uses in state-of-the-art medical imaging devices, remote controls for televisions, security inks and other technology. That's the conclusion of an article on the pigment, Egyptian blue, in the Journal of the American Chemical Society.
Chemistry Source: American Chemical Society
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Thursday, Feb 21, 2013, 10:45am Rating: | Views: 2044 | Comments: 0
Researchers decipher modus operandi of potential Alzheimer's drug The study published in "Angewandte Chemie" might help to work out strategies for developing potential drugs. As the team of scientist including Markus Zweckstetter and Eckhard Mandelkow report, methylene blue inactivates molecular residues that promote the bonding of tau proteins.
Chemistry Source: Helmholtz Association of German Research Centres
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Thursday, Feb 21, 2013, 10:15am Rating: | Views: 1602 | Comments: 0
Theory of crystal formation complete again Exactly how a crystal forms from solution is a problem that has occupied scientists for decades. Researchers at Eindhoven University of Technology (TU/e), together with researchers from Germany and the USA, are now presenting the missing piece. This classical theory of crystal formation, which occurs widely in nature and in the chemical industry, was under fire for some years, but is saved now. Th
Chemistry Source: Eindhoven University of Technology
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Wednesday, Feb 20, 2013, 2:15pm Rating: | Views: 1868 | Comments: 0
Chemistry Source: Georgia Institute of Technology
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Tuesday, Feb 19, 2013, 10:30am Rating: | Views: 1328 | Comments: 0
Synthetic molecule first electricity-making catalyst to use iron to split hydrogen gas To make fuel cells more economical, engineers want a fast and efficient iron-based molecule that splits hydrogen gas to make electricity. Online Feb. 17 at Nature Chemistry, researchers report such a catalyst. It is the first iron-based catalyst that converts hydrogen directly to electricity. The result moves chemists and engineers one step closer to widely affordable fue
Chemistry Source: DOE/Pacific Northwest National Laboratory
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Monday, Feb 18, 2013, 11:15am Rating: | Views: 1992 | Comments: 1
What green algae are up to in the dark How green algae produce hydrogen in the dark is reported by biologists at the Ruhr-Universität Bochum in the "Journal of Biological Chemistry". Hereby, they have uncovered a mechanism for the production of the gas which has hardly been examined before; usually, researchers are interested in light-driven hydrogen synthesis. "Hydrogen could help us out of the energy crisis", says Prof. Dr. Th
Microbiology Source: Ruhr-University Bochum
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Friday, Feb 15, 2013, 10:45am Rating: | Views: 1614 | Comments: 0