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- Tobin J. Marks, Northwestern University, for pioneering research in homogeneous and heterogeneous catalysis and areas of chemistry. - Lonnie G. Thompson, Ohio State University, Columbus, Ohio, for his research in paleoclimatology analyzing fingerprints found in tropical ice cores from the world's highest mountain glaciers. (Herald Online, SC -- Technology)
Extremely Short Bursts Of Light Produced: Could Probe Motion Of Electrons Jul 29, 2007
Using this strong light, researchers can "kick" molecular processes such as catalysis or electronic switching (important for developing data storage media) into action and watch their mechanisms on a very short timescale. The team also found something surprising: the intensity of their THz pulses is so great that they introduce so-called "nonlinear optical effects," specifically, a phenomenon known as cross-phase modulation. (Science Daily)
Remarks by President Bush in Presentation of 2005 and 2006 National Medals of Science and Technology Jul 28, 2007
2005 National Medal of Science to Tobin J. Marks, for his pioneering research in the areas of homogeneous and heterogeneous catalysis, organo-f-element chemistry, new electronic and photonic materials, and diverse areas of coordination and solid state chemistry. 2005 National Medal of Science to Lonnie G. Thompson, for his pioneering research in paleoclimatology analyzing isotopic and chemical fingerprints found in tropical ice cores from the world's highest mountain glaciers and for his courage... (PR Newswire)
Elsevier announces significant increases in impact factors Jul 19, 2007
In addition, 53 Elsevier titles ranked number one in their respective categories, including: Seminars in Radiation Oncology (#1 in Radiology); Landscape and Urban Planning (#1 in Urban Studies); Gastroenterology (#1 in Gastroenterology ology); Annals of Emergency Medicine (#1 in Emergency Medicine); The Journal of Allergy and Clinical Immunology (#1 in Allergy), Biomaterials (#1 in Materials Science, Biomaterials); and Journal of Catalysis (#1 in Engineering, Chemical). The continued increase in... (EurekAlert! -- Business News)
Microscopic jets, diamonds unlikely on Uranus, and amazing mosquito legs Jul 17, 2007
Physicists have yet to devise a way to keep the balls heading in a particular direction, but chemical reaction catalysis may prove a useful method for propelling microscopic objects in liquids. - KM. (EurekAlert!)
New Catalyst May Revolutionize Biodiesel Production Jul 10, 2007
And I ll continue to do research in the catalysis and biorenewables area. Note: This story has been adapted from a news release issued by Iowa State University. (Science Daily)
Inexpensive Bio-Inspired Materials That Could Make Hydrogen Fuel Cells Feasible Jul 1, 2007
Both Bullock and DuBois are members of the Molecular Interactions and Transformations group and the Institute for Interfacial Catalysis at PNNL. ... Recent structural studies of hydrogenase enzymes from these microorganisms have revealed that sites where electrocatalysis takes place contain nuclei made up of iron-iron or nickel-iron complexes. (Science Daily)
FlexOracle: predicting flexible hinges by identification of stable domains Jun 23, 2007
Protein motions play an essential role in catalysis and protein-ligand interactions, but are difficult to observe directly. A substantial fraction of protein motions involve hinge bending. (BioMed Central)
How Enzymes Work: Central Mechanism Discovered Jun 21, 2007
The research provides critical insight into why catalysis is so complex and may help pave the way for improving the design of synthetic catalysts. "The more that is known about catalysis, the better chances we have of designing active catalysts," said John P. Richard, Ph ... "Attempts to replicate evolution and design catalysts of non-biological reactions with enzyme-like activity have failed, because scientists have yet to unravel the secrets of enzyme catalysis," Richard said. (Science Daily)
Plastic That Grows On Trees? Fuel, Polyester And Other Chemicals From Biomass Jun 16, 2007
"What we have done that no one else has been able to do is convert glucose directly in high yields to a primary building block for fuel and polyesters," said Z. Conrad Zhang, senior author who led the research and a scientist with the PNNL-based Institute for Interfacial Catalysis, or IIC. ... "This work opens the way for fundamental catalysis science in a novel solvent.". (Science Daily)
Chemist Gabor Somorjai to receive Priestley Medal UCB, Jun. 12 Jun 13, 2007
The American Chemical Society announced last week that it will bestow its highest honor, the Priestley Medal, on Gabor A. Somorjai, University Professor and professor of chemistry at the University of California, Berkeley, for his "extraordinarily creative and original contributions to surface science and catalysis." ... "It honors pioneering research in surface chemistry and heterogeneous catalysis by our 40 years of research with more than 300 outstanding Berkeley graduate students and... (University of California Newswire, CA)
German x-ray laser tunnel gets the go ahead Jun 8, 2007
Researchers at XFEL will include chemists, materials scientists, plasma physicists, structural biologists, and geologists, with potential applications for biomedicine, pharmacy, or combustion and catalysis. Construction of the 986 million Euro (668) facility will start by the beginning of next year. (Chemistry World)
Shelton Intermediate students explore science May 26, 2007
Joe Donini, 14, decided to test catalysis using enzymes in pineapples, by testing various forms of the fruit --- dried, heated, fresh --- to determine how soon it would gel when gelatin was added to the fruit. "This experiment could be applied to the fruit business, as well as to the medical field," said Donini, whose project was complete with microscopic photos of the enzymes in the pineapple. (Valley News, CT)
Three faculty members receive Humboldt research awards May 25, 2007
Yamamoto will continue his ongoing research on Lewis and Bronsted acid catalysis chemistry. Both acids play important roles in triggering or driving chemical reactions in the synthesis of new organic molecules that are biologically important or that contain interesting physical properties. (Univeristy of Chicago Chronicle, IL)
Brookhaven nanomaterials center tackles energy research May 23, 2007
Research will focus on three primary disciplines: electronic materials such as those with optoelectronic properties; catalysis, or the study of catalyst behavior; and bio-inspired" processes such as photosynthesis. "One of the most exciting aspects is the opportunity to be plugged in, so when the nation thinks of energy research, they will think of us at BNL," said Black. "Cutting-edge science with a practical edge. " Black comes to BNL which also houses the Alternating Gradient Synchrotron,... (EETimes)
ADB opens annual meetings in Shanghai May 17, 2007
The ADB Annual meeting is regarded as a catalysis for Sino-African relations since they fostered a new strategic partnership last year. With a ever expanding economic context, the two sides are taking pragmatic measures for win-win results the shared goal is to both opportunities and challenges brought by economic globalization. (Xinhuanet, China)
New impetus through networking May 12, 2007
In the Priority Programme of the same name, chemists and physicists seek to create tailor-made MOFs, which can be used for energy storage, the separation of materials, selective catalysis and as sensors with special optical and electrical properties. (Coordinator: Professor Stefan Kaskel, Technical University of Dresden). (EurekAlert! -- Business News)
Rhodia: First Quarter 2007 Results May 10, 2007
Business Wire: public relations, press release distribution, investor relations, SEC filing. May 10, 2007 02:50 AM Eastern Daylight Time. (BusinessWire)
Rhodia: RSULTATS 1er TRIMESTRE 2007 May 10, 2007
Significant volume growth in both Rare Earths (Catalysis & Electronics) and Silica Systems (Tyres). Price rises more than offset raw material cost increases. (BusinessWire)
Our View: Personal connection results in Cougill donation Apr 4, 2007 Electron Storage Added To Molecular Package That Converts Light To Chemical Energy Mar 30, 2007 Gold, Copper Nanoparticles Take Center Stage In The Search For Hydrogen Production Catalysts Mar 29, 2007 Artificial Photosynthesis: Inspired By Nature, Scientists Explore Pathways To Clean, Renewable Solar Fuel Mar 29, 2007 New developments in 'artificial photosynthesis' Mar 28, 2007 Chemists strike gold with new gold catalysts Mar 24, 2007 Vitamin B12 synthesis exposed Mar 22, 2007 RNA Enzyme Structure Offers A Glimpse Into The Origins Of Life Mar 17, 2007 New Nanoscale Engineering Breakthrough Points To Hydrogen-powered Vehicles Mar 7, 2007 Nano-microscopy Reveals The Collective Transport Of Gold Atoms In Real-time Feb 22, 2007 Creation of an international research network Feb 14, 2007 Volcanoes And Nanotechnology: Direct Synthesis Of Carbon Nanotubes With Volcanic Rock Feb 7, 2007 A Boost For Hydrogen Fuel Cell Research Jan 27, 2007 VBI research offers potential route to diabetes therapeutics Jan 23, 2007 To Catch An Intermediate: Scientists Find New Way To Trap And Hold Intermediate Compounds In Water Jan 2, 2007
The catalysis motivating the Cougills to donate 500,000 was their personal connection to Old Main. In brightening the interior of that building, they also reinforced their connection to an institution that helped give them the tools to achieve success. (Mattoon Journal-Gazette, IL)
New Chemistry Approach Promises Less Expensive Drugs Mar 31, 2007
"This is a new type of chemistry that could expand the way people think about making biologically active molecules," said MacMillan, who holds Princeton's A. Barton Hepburn Chair of Chemistry and directs the chemistry department's Merck Center for Catalysis ... In cases where the catalyst can create only the helpful enantiomer -- a process called asymmetric catalysis -- they are often expensive, capricious and difficult to work with ... "This work adds an important new dimension to efforts to... (Science Daily)
"What is different is the way the systems function. It is a three part molecule. The first part is a light absorber, harnessing visible and UV light. The second part is an electron reservoir. The third part is the catalysis to make hydrogen from water." All of these sub-units are coupled into one large supramolecular assembly. She said the new molecules are expected to enhance efficiency. (Science Daily)
"Metal nanoparticles alone are not able to do the catalysis," Rodriguez said. "But when you put them on the ceria, you see tremendous catalytic activity.". (Science Daily)
Below are summaries of these talks, which are part of the American Chemical Society symposium "Catalysis Relevant to Energy and Sustainability." NOTE: The embargo date/time for each talk is specified after the title. Catalyzing Oxygen Production from Water. (Science Daily)
Below are summaries of these talks, which are part of the American Chemical Society symposium "Catalysis Relevant to Energy and Sustainability." NOTE: The embargo date/time for each talk is specified after the title. Catalyzing Oxygen Production from Water EMBARGOED until 11:20 a.m. Central Time/ 12:20 p.m. Eastern Time on Sunday, March 25, 2007. (EurekAlert!)
"If you look at the most-cited articles in the Journal of the American Chemical Society, many are about gold catalysis. "With this class of gold catalysts, you can develop a number of unprecedented reactions that have never been seen before. " In a review article appearing in today's (March 22) issue of Nature, Toste discusses the new field and proposes a new theory for why gold has such unusual, and practical, catalytic properties. So far, the hypothesis has successfully predicted the behavior... (EurekAlert!)
"One still has to marvel at how such a small enzyme is able to perform this catalysis which involves the breaking and making of so many carbon-carbon bonds," at the University of Kent, and who was not involved in the research, told The Scientist in an Email. It is particularly remarkable, he added, considering this action includes "the surgical excision of a carbon from a six-membered ring to generate a five-membered ring.". (The Scientist)
"The L1 ligase appears to use strategies of transition-state stabilization and acid-base catalysis similar to those that exist for natural ribozymes and protein enzymes," he said. Note: This story has been adapted from a news release issued by University of California - Santa Cruz. (Science Daily)
Additionally, the techniques and concepts derived from the research program are expected to make overarching contributions to other areas of science well beyond the focus on electrocatalysis ... "Understanding catalysis is a grand challenge of nanoscience that is now coming within reach," said George Crabtree, director of Argonne's Materials Science Division ... "The systematic work that Voya and Nenad are doing is a major step toward transforming catalysis from an empirical art to a fundamental... (Science Daily)
One example is catalysis research. Real-life, real-time nano-imaging allows for closer observation of the catalysis processes, with the logical consequences of this being better catalysts and more efficient chemical processes. (Science Daily)
On February 7, 2007, Catherine Brchignac and Arnold Migus, respectively CNRS President and General Director, and Hiroyuki Yoshikawa, President of AIST (National Japanese Institute of Advanced Industrial Science and Technology), signed an agreement to create a GDRI (International Research Network) known by the acronym ECSAW (Environmental catalysis for sustaining clean air and water) ... Catalysis plays an innovative role in the development of new technologies, for both preventing and reducing... (EurekAlert! -- Business News)
However, because their production on an industrial scale remains expensive, their commercial use in such areas as catalysis has remained unthinkable ... -- In chemistry and biology, catalysis is the acceleration (increase in rate) of a chemical reaction by means of a substance, called a catalyst, that is itself not consumed by the overall reaction. (Science Daily)
The slow rate of oxygen-reduction catalysis on the cathode a fuel cell s positively charged electrode - has been a primary factor hindering development of the polymer electrolyte membrane (PEM) fuel cells favored for use in vehicles powered by hydrogen ... They then used a combination of surface-sensitive probes and electrochemical techniques to measure the respective abilities of these crystals to perform ORR catalysis ... -- In chemistry and biology, catalysis is the acceleration (increase in... (Science Daily)
Mukhopadhyay remarked: "The research is a proof of concept study showing that it is possible to alter the activity of phosphoenolpyruvate carboxykinase without directly interfering with catalysis. Because the research pertains to surface residues on the protein molecule, this approach could be used to design a compound that can prevent the enzyme from participating in the overproduction of glucose in the liver of a person with type 2 diabetes." He added: "Much work remains to be done to take... (EurekAlert!)
This is a key to binding substrate molecules and to modifying their behavior, particularly for catalysis, said chemist Ken Raymond ... The tetrahedral encapsulation technique developed by Raymond and Bergman has many of the same essential features as enzymatic catalysis, including the creation of cavities that allow for the recognition and control of molecular asymmetry in reactions ... -- In chemistry and biology, catalysis is the acceleration (increase in rate) of a chemical reaction by means... (Science Daily)
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