Stuff of stink bombs investigated for role in pregnancy
... role in the human reproductive system.
sulphide partially responsible for the foul odour ... research at the First International Conference on hydrogen
Sulphide in Biology and Medicine in Shanghai, ... gathering over the last ten years that the gas hydrogen
sulphide has a signalling role in the ....
Accolade for solar-hydrogen project
... A research project that aims to produce hydrogen
on an environmentally friendly and cost-effective ... award.
The new process of producing 'green' hydrogen
uses three abundant and renewable sources ... Sweden, Greece, USA, Australia and Germany.
has huge potential as an environmentally clean ...
Synthetic catalyst mimics nature's 'hydrogen economy'
... a catalyst that acts like nature's most pervasive hydrogen
The researchers describe their work ... and nickel-iron hydrogenase function as hydrogen
processors, much like platinum.
"Nature relies ... of the catalytic site to include the substrate hydrogen
The researchers' model of the ...
Scientists work to plug microorganisms into the energy grid
... researchers are also looking at producing hydrogen
from renewable resources. Donohue's lab is ... sphaeroides that use photosynthesis to produce hydrogen
from a combination of cellulosic feedstocks and sunlight. The hydrogen
can then converted to electricity using fuel ...
Progress toward artificial tissue?
... example, the researchers were able to produce a hydrogen
peroxide sensor. The carbon nanotubes catalyze the oxidation of hydrogen
peroxide, which results in a measurable current. hydrogen
peroxide plays a role in normal heart function ...
DOE funds bio-inspired solar fuel center at Arizona State
... to convert water cheaply and efficiently into hydrogen
fuel and oxygen. Society requires a renewable ... of solar energy to produce a clean fuel such as hydrogen
is essentially the only process that can satisfy ... to oxidize water (producing oxygen gas) and make hydrogen
or other fuels.
"This project demonstrates the ...
Breaking the ties that bind: New hope for biomass fuels
... into sheets. The sheets are held together by hydrogen
bondsan electrostatic attraction of a positive ... other types of attractions that are weaker than hydrogen
bonds. The plant then spins these sheets into ... cellulose generally has a well-ordered network of hydrogen
bonds holding it together, the material also ...
Diet secrets of 'the Royals'
... they may run into a reproductive wall."
and Oxygen: A Record of Dry Times and Rainy Seasons
Water is made of hydrogen
and oxygen, so ratios of rare hydrogen-2 ... isotope composition of their hair," he adds. The hydrogen
isotope ratio in elephant tail hair drops when ...
Weizmann Institute scientists develop a unique approach for splitting water into hydrogen and oxygen
... of efficient systems for splitting water into hydrogen
and oxygen, driven by sunlight is among the most ... today, underpinning the long term potential of hydrogen
as a clean, sustainable fuel. But man-made ... of reactions, which leads to the liberation of hydrogen
and oxygen in consecutive thermal- and ...
American Chemical Society Weekly PressPac -- April 1, 2009
... tried for years to find a material to optimize hydrogen
storage in futuristic fuel cell vehicles. Despite ... researchers have been unable to meet the hydrogen
storage goals proposed by the U.S. Department of Energy (DOE) for hydrogen
fuel cell vehicles, they state.
They describe ...
Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications
... complementary DNA base pairs, evaluating the hydrogen
bonds formed between them. Base pairing rules for DNA dictate that the hydrogen
bonds work to join up appropriate nucleotide ... complementary mateembedded in the substrate, the hydrogen
bonds stick the bases together and they attach, ...
Water acts as catalyst in explosives
... of high explosives made up of oxygen and hydrogen
produce water at thousands of degrees Kelvin and ... the team discovered that in water, when one hydrogen
atom serves as a reducer and the hydroxide (OH) ... you'd find in the interior of a planet, the hydrogen
of a water molecule starts to move around very ...
Dancing 'adatoms' help chemists understand how water molecules split
... understanding of the chemistry needed to generate hydrogen
fuel from water or to clean contaminated water. ... oxygen are central to such varied processes as hydrogen
production, breaking down pollutants, and in ... titanium dioxide as a way to split water into its hydrogen
and oxygen pieces, researchers can use a ...
Revealing new applications for carbon nanomaterials in hydrogen storage
... future. Research into safe and efficient means of hydrogen
production, storage, and use is essential to make ... are showing interest in using solid state hydrogen
storage materials, e.g. NaAlH4, as new energy ... sodium alanate, which is a popular material for hydrogen
"Now that the catalytic ...
Story tips from the Departments of Energy's Oak Ridge National Lab -- March 2009
... 576-0226; email@example.com ]
ENERGY -- hydrogen
shake . . .
for transportation may have received a boost with ... that converts cellulosic materials and water into hydrogen
fuel. A team of researchers from Virginia Tech, ...
No longer a gray area: Our hair bleaches itself as we grow older
... it. Going gray is caused by a massive build up of hydrogen
peroxide due to wear and tear of our hair ...
"Not only blondes change their hair color with hydrogen
peroxide," said Gerald Weissmann, MD, ... . "All of our hair cells make a tiny bit of hydrogen
peroxide, but as we get older, this little bit ...
Texas researchers provide emissions data for livestock industry
... Protection Agency to begin reporting ammonia and hydrogen
The EPA issued a final ... that can emit 100 pounds or more of ammonia or hydrogen
sulfide during any 24-hour period, Weinheimer ... otherwise."
Casey and Parker aggregated hydrogen
sulfide field data for the reporting process. ...
Structure of enzyme against chemical warfare agents determined
neutrons are able to locate the positions of hydrogen
make up half of all atoms in ... similar manner. Yet despite being so widespread, hydrogen
in proteins are quite elusive. As X-rays ... the electron
cloud around an atomic nucleus, hydrogen
atoms, with only one
electron, are normally ...
Our microbes, ourselves
... bacteria known as prevotellaceae. Further, such hydrogen
producers appear to coexist with ... weight and gastric bypass samples. Unlike the hydrogen
producers, however, these methane-liberating hydrogen
consumers are not bacteria. They belong instead ...
Heavy pyridine crystallizes differently
... in German .
The nuclei of ordinary hydrogen
atoms contain only a single proton. If a neutron is added, the hydrogen
becomes deuterium. In principle, molecules that contain deuterium in place of hydrogen
atoms are chemically identical. However, there ...
Hydrogen tank lighter than battery
... brings us a step closer to the everyday use of hydrogen
as a source of fuel for powering vehicles. A hydrogen
'tank' using this alloy would have a relative ... Southampton has shown considerable interest.
is considered to be a clean and therefore ...
Fuels of the future may come from 'ice that burns,' water and sunshine
... efforts to split water molecules into hydrogen
and oxygen in order to produce clean-burning hydrogen
fuel. The podcast also highlights how scientists ... that can cheaply and efficiently split water into hydrogen
and oxygen. The development could lead to cars ...
University success at national engineering awards
... Colin Snape's work on the scientific process of hydrogen
pyrolysis, in collaboration with Engineering ... year's Business Support of Universities Award.
pyrolysis also known as HyPy was a method ... used to liquefy large quantities of coal. It uses hydrogen
at a very high pressure (15MPa) and a temperature ...
American Chemical Society's Weekly PressPac
New material could speed development of hydrogen
Researchers ... U.S. Department of Energy (DOE) 2010 goals for hydrogen
storage and could help eliminate a key roadblock ... ways of using carbon nanotubes (CNTs) to store hydrogen
in fuel cell vehicles. CNTs are minute cylinders ...
The viability of hydrogen transportation markets: Chicken or egg?
may well be the new gasoline.
But where's the ... and refuel your energy-efficient vehicle?
stations be strategically convenientlocated on ... development obstacles need to be overcome if hydrogen
vehicles are ever to penetrate the transportation ...
Molecular cubes in the sunlight
... press release is also available in German .
will be one of the most important fuels of the future. It would be ideal to obtain hydrogen
by splitting water instead of from petroleum. ... at the cathode, protons (positively charged hydrogen
ions) are reduced to hydrogen, whereas at the ...
September Geology and GSA Today media highlights
... of mantle upwelling.
Stable carbon and hydrogen
isotopes from bat guano in the Grand Canyon, USA, ... a record of past climate and plant life. Stable hydrogen
and carbon isotope values of guano reflect local ... and sulfidic, and previous work hypothesized that hydrogen
sulfide release to the atmosphere could link the ...
A better way to make hydrogen from biofuels
... a way to convert ethanol and other biofuels into hydrogen
A new catalyst makes hydrogen
from ethanol with 90 percent yield, at a workable ... issues that need to be resolved before we can use hydrogen
as fuel -- how to make it, how to transport it, ...
Candy-coating keeps proteins sweet
... or less. Their latest experiments center on the hydrogen
bonding that makes the sugars rigid. They have ... be used for routine formulation evaluation.
bonds are responsible for many of waters ... mostly of water, are also defined by their hydrogen
bonds. Without these bonds, proteins would ...
New book tutors future presidents and public on science behind the headlines
... when President George W. Bush touted a future hydrogen
economy in his State of the Union address, ... fact that there are many problems with the use of hydrogen
as a transportation fuel.
"There was nobody ... said. "I doubt that he knew, for example, that hydrogen
is currently made from fossil fuels in a process ...
Strange molecule in the sky cleans acid rain, scientists discover
What makes the molecule so unusual is its two hydrogen
bonds, which are similar to those found in water. ...
The cause of these strange behaviors are weak hydrogen
bonds that hold water molecules together.
The new atmospheric molecule has two hydrogen
bonds, which allows it to form a six-sided ring ...
Scientists a step closer to producing fuel from bacteria
... Nostoc fixes nitrogen and, in doing so, releases hydrogen
that can then potentially be used as fuel. Fixing ... lead to understanding and improvement of the hydrogen
production mechanism of these bacteria. It will ... step for us will be further investigation into hydrogen
production, as well as constructing more ...
... glass of water.
Because oxygen and hydrogen
are energy-rich fuels, many researchers have ... process pick up electrons and convert back into hydrogen
at a partner electrode.
Nocera and Kanan also ... For direct conversion of solar energy into hydrogen
and oxygen, researchers will need to study the ...
Tips from the Journals of the American Society for Microbiology
... Blue Light and hydrogen
Peroxide May Effectively Treat Biofilms That ... used by dentists to cure resin fillings and hydrogen
peroxide (H 2 O 2 ) combined may be capable of ... seconds while in the presence of 3 to 300 mM of hydrogen
peroxide. Microbial counts from each treated ...
Closing the hydrogen economic loop
... and now hybrid gas-electric cars believes the hydrogen
economy is already upon us.
In a paper ... issue of the International Journal of Nuclear hydrogen
Production and Applications , Stanford Ovshinsky, ... that we already have the means for making the hydrogen
economy realistic. ...
... (CH2Cl2) to exchange one chlorine atom for a hydrogen
atom, forming nearly 100 % of the desired CHCl3. ... weakly adsorbed species. CH2Cl2 swaps one of its hydrogen
atoms for one such weakly bound chlorine atom. It leaves behind the hydrogen
atom, which is in turn weakly adsorbed to the ...
MIT creates new material for fuel cells
... cells get their energy from an external source of hydrogen
fuel, while conventional batteries draw from a ... used as the fuel and reforming of alcohol down to hydrogen
is not required. Such a fuel cell is attractive ... liquid, it is easier to store and transport than hydrogen
gas, and is safer (it won't explode). Methanol ...
Power from formic acid
... energy to our society. In this context, hydrogen
technology has taken on increased importance. ... now succeeded in the controlled extraction of hydrogen
from formic acidwithout the need for the ... reforming process usually involved in other hydrogen
generation systems. As they report in the journal ...
More efficient fuel-cells, thanks to a new catalyst
Most current research is focused on hydrogen
cells the biggest advantage of which is that they ... water vapour as the only waste product. However, hydrogen
is very expensive, both in producing it and in ... same energy from a similar amount of fuel, the hydrogen
has to be kept and stored under conditions of ...
Scientists aim to boost world energy supplies -- with microbes!
... called Syntrophus digest the oil and produce hydrogen
gas and acetic acid (the pungent ingredient of ... a type of organism known as archaea, combine the hydrogen
with carbon dioxide to produce methane.
The ... the technology could also be used to produce hydrogen
gas from inaccessible oil reserves, he said. ...