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Tag: "catalyst" at biology news

Tiny particles could solve billion-dollar problem

...is critical to the scheme because only a nanoscale catalyst will be efficient enough to provide the throughput needed to make the whole approach effective. Tests in Wong's lab have found that the gold-palladium nano-catalysts break TCE down about 100 times faster than bulk palladium catalysts. ...

Marine sponge yields nanoscale secrets

...ther, they function just as the natural biological catalyst does to make silica at low temperatures. The UCSB...found that the protein is an enzyme that acts as a catalyst –?a surprising discovery. Never before had a protein been found to serve as a catalyst to promote ch...

Natural tumor suppressor in body discovered by UCSD medical researchers

...r a phosphatase, which is an enzyme that acts as a catalyst in regulating cellular processes by removing phosphate molecules. Based on the chemical components of Akt, they specifically looked for a phosphatase linked to the PH domain, a protein module found in a wide variety of chemical signaling proteins in ...

By creating molecular bridge, scientists change function of a protein

...protein functions for any purpose you want -- as a catalyst to create new chemicals that might be useful in such things as therapeutics, for example." By way of in-vitro co-evolution, the researchers gradually changed the function of the human estrogen receptor alpha, a nuclear hormone receptor mostly expres...

Green catalyst destroys pesticides and munitions toxins, finds Carnegie Mellon University

...ted at American Chemical Society meetingA chemical catalyst developed at Carnegie Mellon University completely destroys dangerous nitrophenols in laboratory tests, according to Arani Chanda, a doctoral student who is presenting his findings on Sunday, Aug. 28, at the 230th meeting of the American Chemical Soc...

K-State professors discover enzyme responsible for creation of a beetle's hard shell

...nost said. The identification of laccase-2 as the catalyst for cuticle tanning opens up possibilities of targeting this protein as a way of weakening the beetle's physical defenses against mechanical, chemical and biological injuries, Muthukrishnan said. Better insecticides could be developed as a result of ...

Relic of life in that Martian meteorite? A fresh look

...s important because magnetite is known to act as a catalyst in the formation of MMC. Macromolecular carbon present within the carbonate globules in ALH84001 may represent the first evidence of non-biological synthesis of organic molecules on Mars. "Although we haven't settled the debate on whether evidence ...

NJIT engineer poised to take stem cell research a step forward

...ffolds and determine which biomaterial is the best catalyst for stem cell differentiation. Again, their hope is that stem cells can soon be used to treat patients with damaged cartilage. Arinzeh and Jaffe are collaborating on this project with Louis Rizio, MD, an orthopedic surgeon and sports doctor at Moun...

Rutgers researchers find fat gene

... (phosphatidic acid phosphatase or PAP), a protein catalyst that is required for the formation of fats ?triglycerides, specifically. The breakthrough for Carman's group grew out of work with ordinary baker's yeast; a simple single cell organism. "We isolated the PAP enzyme from yeast that corresponds in for...

AIDS drug from sunflowers

...nts probably only have one enzyme, which acts as a catalyst for this transfer. If we can find the construction manual for this enzyme, i.e. the corresponding gene, and can smuggle it into the bacteria, the latter can produce the enzyme in large quantities. The critical step of synthesis would then be child's ...

Finding a better way to make biodiesel

...duced. The researchers are after a new, high-tech catalyst that takes some of the energy, labor and toxic che...elatively large channels that can be filled with a catalyst that reacts with soybean oil to create biodiesel. The particles can also be loaded with chemical gat...

Uniform tungsten trimers stand and deliver

...tute a new model system, a simplified version of a catalyst that would be used in an application. Such models ...r Interfacial Catalysis. Variability in commercial catalyst size and chemical composition makes it difficult to accurately understand or describe the reactions ...

Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

... materials. "By reducing the level of the copper catalyst used in ATRP, we have made this process at least 1...previously required a high concentration of copper catalyst that had to be removed from finished products. "Our new ATRP processes significantly reduce the co...

BC catalyst discovery promises faster, cheaper drug production

...Department said they had found a first-of-its-kind catalyst that will eliminate several costly and wasteful st...ocess of synthesizing certain molecules. "Our new catalyst will significantly improve the efficiency with which biologically and medicinally active molecules c...

U of M researchers invent 'flashy' new process to turn soy oil, glucose into hydrogen

...ector through a tube onto a ceramic disk made of a catalyst material--the elements rhodium and cerium--that gu...the fuel and mix it with oxygen before it sees the catalyst so it doesn't burn to char. This is potentially 100 times faster than what is currently available to...

The longest carbon nanotubes you've ever seen

...semiconductor industry, with a novel substrate and catalyst onto which the carbon attaches. Supported by th...aterial. Within the vapor sat the new substrate--a catalyst made of alternating metal and ceramic layers atop an oxidized-silicon wafer base--which served as th...

Now, self-healing materials can mimic human skin, healing again and again

...nsisted of a microencapsulated healing agent and a catalyst distributed throughout a composite matrix. When th.... The healing agent then reacted with the embedded catalyst to repair the damage. “With repeated damage in the same location, however, the supply of healing a...

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