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Catalysis in Medical News

"Dynamic Energy Landscape" of enzyme in Catalysis

Complex protein molecules called enzymes catalyze specific biochemical reactions in cells. The traditional theory is that dynamic fluctuations//protein conformation or structure play a major role in enzyme catalysis. However, recent findings reveal that it is the "dynamic energy landscape" of the e...

Three Johns Hopkins researchers named Howard Hughes Medical Institute early career scientists

...t rhomboid proteases catalyze a biochemical reaction that cuts proteins. His research team aims to understand the biochemical principles governing how catalysis occurs embedded within the membrane, which is a new frontier in biochemistry. They also focus on how deadly pathogens such as malaria and related para...

NovaBay Pharmaceuticals' Scientific Advisor Receives American Chemical Society's Highest Award

...discovered uses for these compounds for applications in medical imaging, drug delivery, neutron-based treatments for cancers and rheumatoid arthritis, catalysis and molecular motors. He also created a specific type of nanoparticle that selectively targets cancer cells for boron neutron capture therapy. Dr. H...

The 2009 Leibniz Prize: Eleven new scientific discoverers

...larly groundbreaking. This allowed new molecules to be created, that in turn could be given new properties, which are expected to be a lasting boon to catalysis and material sciences. Braunschweig has published these and other results in an enormous number of articles, with more than 30 having been published i...

Scientists Develop New Strategy to Fight Obesity

...release from the institute. "While this antibody lacks a high level of catalytic efficiency, our study clearly demonstrates that even a basal level of catalysis can effectively modulate feeding behavior. These findings not only validate antibody-based therapeutics, but strongly suggest that catalytic anti-ghre...

Catalyst mystery unlocked

...ands of industrial and biological processes rely on catalysts. In the human body, enzymes catalyze almost every reaction. "The Holy Grail of enzyme catalysis and the ultimate manifestation of understanding of this process is the ability to design enzymes," said senior author Arieh Warshel, professor of chem...

Princeton Professor David W. C. MacMillan Lectured WuXi PharmaTech Scientists

... Caltech, and was promoted to full professor in 2003. He was appointed to the A. Barton Hepbum Chair of Chemistry and Director of the Merck Center for catalysis at Princeton University in June 2006. Dr. MacMillan is a leader in the currently active area of asymmetric organocatalysis. His numerous accomplishm...

American Chemical Society's weekly PressPac -- Jan. 23, 2008

... Fe-B* has been reported to destroy harmful bacterial spores. MTS ARTICLE #3 FOR IMMEDIATE RELEASE Destruction of estrogens using Fe-TAML/peroxide catalysis DOWNLOAD ARTICLE http://dx.doi.org/10.1021/es7022863 CONTACT: Nancy Shappell, Ph.D. USDA-Agricultural Research Service Fargo, North Dakota 5...

'The Handbook of Proteins'

...determining their structures and properties, and cataloguing them in databases Dozens of additional articles detail important aspects of enzymatic catalysis and protein-ligand interactions ...

Argonne's Blue Gene/P to host large cadre of INCITE researchers

...h Argonne and ORNL to develop a new understanding of chemical reactions in solutions and at interfaces, especially in the area of hydrogen storage and catalysis in order to establish a protocol for the application of high-performance computing to current and future Grand Challenges in the chemical sciences. ...
Catalysis in Biological News

The key to unlocking the secret of highly specific DNAzyme catalysis

CHAMPAIGN, Ill. Using an extremely sensitive measurement technique, researchers at the University of Illinois have found clear evidence that a lead-specific DNAzyme uses the lock and key reaction mechanism. In the presence of zinc or magnesium, however, the same DNAzyme uses the induced fit reac...

NTU professor discovers method to efficiently produce less toxic drugs using organic molecules

...ss are 'ligand-metal catalysts' (such as ligand-copper, -palladium, -platinum, -ruthenium etc). However when compared to organocatalysts, ligand-metal catalysis is considered less 'green' and thus more 'toxic'. However, the problem with using organocatalysts is that it is usually not an efficient or cost ef...

Plastic that grows on trees, part two

...le process generates a high yield of HMF and allows the use of raw cellulose as feed material, the researchers report in an upcoming issue of Applied catalysis A . "In biomass like wood, corn stover and switchgrass, cellulose is the most abundant polymer that researchers are trying to convert to biofuels a...

One sponge-like material, three different applications

... chalcogel and its properties will be published online May 17 by the journal Nature Chemistry . This is the first report of chalcogels being used for catalysis and gas separation. "I was surprised at the impressive activity of our catalyst, given how difficult it has been to improve HDS," said Mercouri G. ...

Center to investigate plant cells for better biomass fuels

...cale properties including porosity and plant cell wall mechanics. Penn State also has researchers participating in three other EFRCs: Computational catalysis and Atomic-Level Synthesis of Materials: Building Effective Catalysts from First Principles, Louisiana State University; Polymer-Based Materials for H...

Turning sunlight into liquid fuels

...fficiency and speed of the bundles was their size. "We suspect that the comparatively very large internal area of these 35 nanometer bundles (where catalysis takes place) was the main factor behind their increased efficiency," he said, "because when we produced larger bundles (65 nanometer diameters), the i...

Dinner, lecture series to honor legacy of distinguished UH professor

...or of the Plenum Book series in chemical engineering, editor of Review in Chemical Engineering and a member of the editorial board of IEC Research and catalysis Reviews-Science and Engineering. He has received several American Institute of Chemical Engineers awards, including a fellowship, the Wilhelm Award...

Researchers shed new light on catalyzed reactions

...es are transformed in chemical reactions that take place on catalytic surfaces. "There was a question of whether we could do Raman spectroscopy and catalysis at the same time," Wong said. "There's no other method that lets you 'see' these catalyzed reactions in water while the reaction is happening, and som...

2008 Ullyot Public Affairs Lecture

... Suprieure de Lyon. He is the former auditor for the Higher Studies Institute of the French Defense Ministry. For four years he was director of the catalysis Research Institute at the Centre National de la Recherche Scientifique in Lyon-Villeurbanne, and for fifteen years he led the Theoretical Chemistry La...

Catalysis takes center stage at chemistry conference

...HLAND, Wash. Scientists can learn how advances in catalysis are addressing real-world energy problems and expa...rned about the big energy problem, and the role of catalysis in the solution." Catalysts are substances that ...orked with him at PNNL's Institute for Interfacial catalysis http://iic.pnl.gov/ . One way PNNL scientists a...
Catalysis in Biological Technology

New clues about a hydrogen fuel catalyst

... support. The catalyst plucks the hydrogen from the ammonia borane as needed to run the device. The PNNL chemists in the Institute for Interfacial catalysis study a rhodium-based catalyst that performs this job fairly well, but might have potential for improvement. Their initial work showed that the cataly...

Enerkem Announces World-Class Advanced Energy Research Center in Edmonton, Alberta, Canada

...m.com ) is a leading waste-to-biofuels and green chemicals technology company. It has developed a unique gasification, sequential gas conditioning and catalysis technology platform, capable of using a mix of feedstock, such as sorted municipal solid waste, forest biomass and agricultural residues. The company ...

Dr. Chris Huber Joins Asymchem Laboratories Inc. as Director of Chemical Development

... , Germany under the supervision of Professors Dr. Henri Brunner, Dr. Jurgen Sauer and Dr. Josef Barthel. He earned his Ph.D. in Organic Chemistry and catalysis from the Universitat Regensburg, Germany with Professor Dr. Henri Brunner. He did his post doc at Purdue University , Indiana under Professor Thomas...

Enerkem GreenField Alberta Biofuels Awarded Permit to Build World's First Commercial Municipal Waste-to-Biofuels Facility

...m.com ) is a leading waste-to-biofuels and green chemicals technology company. It has developed a unique gasification, sequential gas conditioning and catalysis technology platform capable of using a mix of feedstock such as sorted municipal solid waste, forest biomass and agricultural residues. The company is...

As Other States Pull Back, Kansas Accelerates Innovation Investments at Bio International Convention

...ership The KBA will provide $1.2 million over three years for bioenergy research at the University of Kansas Center for Environmentally Beneficial catalysis as a match to $1.2 million being invested by Archer Daniels Midland Company, which operates five processing plants, a technical center, and sales and ...

Brown chemists create more efficient palladium fuel cell catalysts

...lyst, platinum, and it's more abundant. But researchers have wrestled with creating palladium nanoparticles with enough active surface area to make catalysis efficient in fuel cells while preventing particles from clumping together during the chemical processes that convert a fuel source to electricity. Two...

Enerkem announces plans to enter the United States with next-generation biofuels project in Mississippi

...s leading the development and production of next-generation biofuels and green chemicals with its unique gasification, sequential gas conditioning and catalysis technology capable of using a mix of feedstock such as sorted municipal solid waste, forest biomass and agricultural residues. The company is headquar...

Gold-palladium nanoparticles achieve greener, smarter production of hydrogen peroxide

...w A. Herzing. Hutchings, the lead author, is the director of the Cardiff catalysis Institute (CCI) in the UK. Edwards, Solsona, Ntainjua N and Carley are memb...echnology. The group owes its current success to Hutchings' expertise in catalysis and to his longstanding collaboration with Kiely, who has the ability to ob...

Enerkem announces first commercial-scale biofuels and biochemicals plant is entering start-up phase

...mpany is headquartered in Montreal, Quebec, and has engineering offices in Sherbrooke, Quebec. Enerkem's gasification, sequential gas conditioning and catalysis technology converts sorted municipal solid waste, as well as forest and agricultural residues into second generation transportation fuels and green ch...

Ultrafast lasers give CU-Boulder researchers a snapshot of electrons in action

...ctions could lead to breakthroughs in materials research and in fields like catalysis and alternative energy, according to CU-Boulder physics professors and JILA...r technology, such as creating more efficient light-harvesting molecules or catalysis or perhaps even solar cells," Stolow said. ...
Catalysis in Biological Definition

Active site

... The active site of an enzyme is the binding site where catalysis occurs. The structure and chemical properties of the active site allow the recognition and binding of the substrate . The active site in many enzy...

Biophysics

... Boris Rajewsky Mikhail Volkenshtein , Revaz Dogonadze & Zurab Urushadze , authors of the Quantum-Mechanical (Physical) Model of Enzyme catalysis John P. Wikswo , research on biomagnetism References Perutz M.F. Proteins and Nucleic Acids, Elsevier, Amsterdam, 1962 Perutz M.F. ...

Enzyme

...l versus the likelihood of it rolling up the hill. catalysis by an enzyme is analogous to removing a pebble tha...pathways 2.5 Quantum-mechanical model of enzyme catalysis 3 Ribozymes 4 Enzymes and health ...e pathway. Quantum-mechanical model of enzyme catalysis The lecture "Quantum Theory of some Biochemical ...

Michaelis-Menten kinetics

...d by Briggs and Haldane G. E. Briggs and J. B. S. Haldane (1925) A note on the kinetics of enzyme action, Biochem. J., 19, 339-339. Sources catalysis chapter from the Biochemistry textbook released under the GFDL ...
Catalysis in Biological Dictionary

Mitochondrion

... on plant mitochondrion at Smarter. Shop online, compare products, and save. In the mitochondrion , the matrix contains soluble enzymes that catalysis the ... Mitochondrial DNA is the DNA located in organelles called mitochondrion . ... ...

Biotin

...biotin include organ meats, ... Biotin , also known as vitamin H or B7, has the chemical formula C10H16N2O3S ... Biotin is important in the catalysis of essential metabolic reactions to ... " Biotin is a water-soluble B-complex vitamin (C10H16N2O3S) that is produced in ... Without biotin , th...

Active site

... chemical properties of the active site allow the recognition and binding of the substrate. active site n. The part of an enzyme at which catalysis of the substrate occurs. ... The active site is usually a big pocket or cleft surrounded by amino acid- and ... Active Sites Folds and cl...
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