Tag: "hydrogen" at biology news

Chemists create 'Superbowl' molecule; May lead to better health

...ball is designed to hold either a single atom or a hydrogen molecule, a superbowl molecule can hold large molecules of up to a hundred atoms, particularly those of medicinal value, Sherburn says. "I'm sure that we will be able to encapsulate compounds such as [the anticancer drug] taxol in the near future," ...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...springs of Yellowstone National Park use primarily hydrogen forfuel, a discovery University of Colorado at Bou...ng in thermal features. "Itwas a surprise to find hydrogen was the main energy source for microbesin the hot springs," Pace said. "This project is also interes...

The very unexpected life and death of a leukemic cell

...ll production. Heavy water is made using a form of hydrogen that has twice its normal mass, making the water molecule "heavier" than normal. The special hydrogen serves as a tag that enables researchers to track the utilization of water in the body. The hydrogen...

Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals

...MRI scan detects and analyzes signals given off by hydrogen protons in water molecules after they are exposed to a magnetic field and radiofrequency pulses. These signals are then converted into an image. Ahrens' new MRI reporter alters the magnetic field in its proximity, causing nearby protons to give off a...

New lab technique identifies high levels of pathogens in therapy pool

...of 92 degrees to 94 degrees F and was treated with hydrogen peroxide rather than chlorine. The team found that pathogens thrived inside hydrogen peroxide bubbles produced at the pool surface and were dispersed as the bubbles became airborne and ...

Microbial fuel cell: High yield hydrogen source and wastewater cleaner

...s that enables bacteria to coax four times as much hydrogen directly out of biomass than can be generated typi...mited to using only carbohydrate-based biomass for hydrogen production like conventional fermentation processes. We can theoretically use our MFC to obtain high...

Buying Time Through Hibernation on Demand

...normal room air laced with 80 parts per million of hydrogen sulfide, a chemical normally produced in humans an...tabolic activity. Within minutes of breathing the hydrogen sulfide and room-air cocktail, the mice stopped moving and appeared to lose consciousness, their res...

U-M team recovers ancient whale in Egyptian desert

...normal room air laced with 80 parts per million of hydrogen sulfide, a chemical normally produced in humans an...tabolic activity. Within minutes of breathing the hydrogen sulfide and room-air cocktail, the mice stopped moving and appeared to lose consciousness, their res...

NYU and MSKCC research provides model for understanding chemically induced cancer initiation

...ethyl group (composed only of one carbon and three hydrogen atoms) on a cytosine base adjacent to the damaged site. Without this methyl group, the bulky chemical carcinogen resides at an external binding site in the minor groove of the DNA double helix. However, in the presence of this single methyl group, it...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...onents such as switches, photoelectric devices and hydrogen generators, some major technical problems have stymied further research. The first of these has been the difficulty in making reliable connections with single molecules to test their electronic behavior. Recently, this problem may have been solved by...

Hydrogen and methane provide raw energy for life at 'Lost City'

...or life at black-smoker vents. And there is little hydrogen sulfide and only very low traces of metals, on which many of the microbes at the other kind of vents depend. The difference in what's available is because water circulates through the Lost City hydrothermal vent field via serpentinization, a chemical...

Purdue researchers use enzyme to clip 'DNA wires'

...onth of a meter, or roughly 10 times the size of a hydrogen atom. The Purdue researchers sliced the DNA wires with an enzyme called BamH1, one of numerous restriction enzymes that are used in standard genetic engineering techniques to snip DNA so that scientists can alter the genetic structures of organisms ...

Team Invents Device For Weighing Individual Molecules

...tive levels, probably to the point that individual hydrogen atoms can be weighed. Such an intricately accurate method of determining atomic-scale masses would be quite useful in areas such as quantum optics, in which individual atoms are manipulated. The next step for Roukes' team at Caltech is to engineer t...

Researchers extend mouse lifespan by protecting against free radicals

...catalase, an enzyme in the body that helps convert hydrogen peroxide into water and oxygen. Hydrogen peroxide ...e more human catalase, the enzyme that breaks down hydrogen peroxide. They targeted delivery of the catalase to different areas of the cell: the cytoplasm, wher...

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

...ds for tetra-amido macrocyclic ligand), works with hydrogen peroxide. Its "green" design is based on elements used naturally in biochemistry. Fe-TAMLs were discovered by Collins, whose group has developed an extensive suite of these catalysts to provide clean, safe alternatives to existing industrial practice...

Secrets of the deep may hold key to life on other planets

...wn survival. These bacteria take their energy from hydrogen sulphide in the vent fluid. "They're among the fastest growing animals on the planet - a full community can grow in just three years," said earth and environment lecturer Dr Crispin Little. "Vent communities are dependent on geochemical rather tha...

Computers close in on protein structure prediction

...orce field which favors close packing of atoms and hydrogen bonding to more accurately compute the energy of the structure. "What seems to be critical is the packing of the molecule," Baker said. "The protein fits together perfectly with no holes in the middle, and no atoms on top of each other. It's about a...

Green diesel: New process makes liquid transportation fuel from plants

...ercent of the energy found in the carbohydrate and hydrogen feed. If you look at a carbohydrate source such as...ount of hydrogen," says Dumesic. "Each molecule of hydrogen is used to convert each carbon atom in the carbohydrate reactant to an alkane. It's a very high yiel...

Ethanol and biodiesel from crops not worth the energy

... power and burning biomass and producing fuel from hydrogen conversion. ...

Using the genomic shortcut to predict bacterial behavior

... power and burning biomass and producing fuel from hydrogen conversion. ...

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