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Hydrogen in Biological News

Weizmann Institute scientists develop a unique approach for splitting water into hydrogen and oxygen

The design of efficient systems for splitting water into hydrogen and oxygen, driven by sunlight is among the most important challenges facing science today, underpinning the long term potential of hydrogen as a clean, sustainable fuel. But man-made systems that exist today are very inefficient an...

Revealing new applications for carbon nanomaterials in hydrogen storage

An international research team, involving Professor Rajeev Ahuja at Uppsala University and researchers in the USA, set out to understand the mechanism behind the catalytic effects of carbon nanomaterials. Experimental and theoretical efforts were combined in a synergistic approach and the results,...

The viability of hydrogen transportation markets: Chicken or egg?

Hydrogen may well be the new gasoline. But where's the nearest "gas" station where you can pull up and refuel your energy-efficient vehicle? Will hydrogen stations be strategically convenientlocated on street corners and travel-stop locations around the globe? What marketing development o...

A better way to make hydrogen from biofuels

COLUMBUS, Ohio -- Researchers here have found a way to convert ethanol and other biofuels into hydrogen very efficiently. A new catalyst makes hydrogen from ethanol with 90 percent yield, at a workable temperature, and using inexpensive ingredients. Umit Ozkan, professor of chemical and biom...

Closing the hydrogen economic loop

The inventor of the nickel metal hydride (NiMH) technology used for building batteries for countless portable electronic gadgets and now hybrid gas-electric cars believes the hydrogen economy is already upon us. In a paper published in the current issue of the International Journal of Nuclear...

Algae could one day be major hydrogen fuel source

ARGONNE, Ill. (April 1, 2008) As gas prices continue to soar to record highs, motorists are crying out for an alternative that wont cramp their pocketbooks. Scientists at U.S. Department of Energys Argonne National Laboratory are answering that call by working to chemically manipulate algae for...

Tiny buckyballs squeeze hydrogen like giant Jupiter

HOUSTON, March 20, 2008 -- Hydrogen could be a clean, abundant energy source, but it's difficult to store in bulk. In new research, materials scientists at Rice University have made the surprising discovery that tiny carbon capsules called buckyballs are so strong they can hold volumes of hydrogen...

Project focuses on production of hydrogen from bacteria and sunlight

TEMPE, Ariz. -- If we wanted to create the ideal environmentally friendly energy source, it would be a fuel that is easy and economical to produce, and one that does not pollute our air when burned. That is exactly what researchers at Arizona State University intend to develop in a new program tha...

Research explores role of hydrogen peroxide in cell health

WINSTON-SALEM, N.C. Hydrogen peroxide, the same mild acid that many people use to disinfectant their kitchens or treat cuts and abrasions, is also produced by the body to keep cells healthy. Now, researchers at Wake Forest University School of Medicine have solved how part of this complex process...

New form of compound stimulates research on hydrogen storage

This release is also available in French . Research on hydrogen-fueled cars may be one step closer to application thanks to a new form of hydride discovered by scientists at the ESRF. The material, lithium borohydride, is a promising energy storage system: it contains 18 weight percents ...

Microbes churn out hydrogen at record rate

By adding a few modifications to their successful wastewater fuel cell, researchers have coaxed common bacteria to produce hydrogen in a new, efficient way. Bruce Logan and colleagues at Penn State University had already shown success at using microbes to produce electricity. Now, using starter...

Scientists discover record-breaking hydrogen storage materials for use in fuel cells

Scientists at the University of Virginia have discovered a new class of hydrogen storage materials that could make the storage and transportation of energy much more efficient and affordable through higher-performing hydrogen fuel cells. Bellave S. Shivaram and Adam B. Phillips, the U.Va. phy...

Engineered eggshells to help make hydrogen fuel

COLUMBUS , Ohio -- Engineers at Ohio State University have found a way to turn discarded chicken eggshells into an alternative energy resource. The patented process uses eggshells to soak up carbon dioxide from a reaction that produces hydrogen fuel. It also includes a unique method for peeling...

Microbial fuel cell: High yield hydrogen source and wastewater cleaner

Using a new electrically-assisted microbial fuel cell (MFC) that does not require oxygen, Penn State environmental engineers and a scientist at Ion Power Inc. have developed the first process that enables bacteria to coax four times as much hydrogen directly out of biomass than can be generated typ...

'Green' energy from algae

...esearchers even go another step forwards. The biomass remaining after extraction (60 70%) is planned to be con-verted into other energy carriers like hydrogen or methane by means of the hydrothermal gasification process developed on the northern campus. ...

August 2009 Geology and GSA Today media highlights

...rresponding to the shallower depths, and proportions of sulfur occurring as hydrogen sulfide should be relatively low. Such fluid behavior appears to be consist... fluids would exist as one supercritical phase, with a higher proportion of hydrogen sulfide, which appears to be consistent with characteristics of high-grade ...

New supercomputer to reel in answers to some of Earth's problems

...sh. -- The newest supercomputer in town is almost 15 times faster than its predecessor and ready to take on problems in areas such as climate science, hydrogen storage and molecular chemistry. The $21.4 million Chinook supercomputer was built by HP, tested by a variety of researchers, and has now been commiss...

Stuff of stink bombs investigated for role in pregnancy

...critical role in the human reproductive system. hydrogen sulphide partially responsible for the foul odour ... research at the First International Conference on hydrogen Sulphide in Biology and Medicine in Shanghai, Chin...een gathering over the last ten years that the gas hydrogen sulphide has a signalling role in the body....

New technique can fast-track better ionic liquids for biomass pre-treatments

... Deconstruction Division and was the principal investigator for this research. "We attributed the swelling to disruption of inter- and intra-molecular hydrogen bonding between cellulose fibrils and lignin. The swelling was followed by complete dissolution of biomass. This is the first study to show the proces...

New crops needed for new climate

...ciety for Experimental Biology Annual Meeting in Glasgow, has shown that the concentration of cyanogenic glycosides, which break down to release toxic hydrogen cyanide, increased in plants in elevated CO 2 . This was compounded by the fact that protein content decreased, making the plants overall more toxic ...

Scientists track chemical changes in cells as they endure extreme conditions

... Specifically, the infrared microscope tracks the instantaneous response of hydrogen bond structures in cellular water as their immediate surroundings change. The spectral measurements indicate changes in hydrogen bonds, which in turn indicate changes in the presence of ions and various m...

OJ worse for teeth than whitening says Eastman Institute researchers

...anFang Ren, DDS, PhD, and his team determined that the effects of 6 percent hydrogen peroxide, the common ingredient in professional and over-the-counter whiten...d Dental and Health, sponsored the trial in part by providing the 6 percent hydrogen peroxide. In the meantime, Ren advises that consumers be aware of the a...

New crops needed for new climate

...ciety for Experimental Biology Annual Meeting in Glasgow, has shown that the concentration of cyanogenic glycosides, which break down to release toxic hydrogen cyanide, increased in plants in elevated CO 2 . This was compounded by the fact that protein content decreased, making the plants overall more toxic ...

Pushmi-pullyu of B-cell development discovered

...individual genes are inaccessible to the molecules that bind and activate them. Second, many of the genes have small methyl groups, a carbon and three hydrogen atoms (CH3), on their DNA in specific places, which also prevent them from being activated. These factors are considered epigenetic states, modificati...

DNA template could explain evolutionary shifts

... the same genetic code. That means it must replicate its DNA. During this process, an enzyme called a helicase separates the two strands, breaking the hydrogen bonds between the A T and G C base pairs. The two separating strands become the replication fork. On one strand, an enzyme called DNA polymerase rea...

Trans fats hinder multiple steps in blood flow regulation pathways

... Trans fats contribute to both of these causes of heart disease, Kummerow said. Trans fats are made through hydrogenation, which involves bubbling hydrogen through hot vegetable oil, changing the arrangement of double bonds in the essential fatty acids in the oil and "saturating" the "unsaturated" carbon ...

European top universities join forces in energy research

...students and two postgraduates. The fifteen new PhD students and six postgraduates are going to work on topics as diverse as solar cells, biofuels and hydrogen storage, all under the theme 'The molecular approach to sustainable energy". Summer and Winter schools The new graduate school in Sustainable ...

Accolade for solar-hydrogen project

... A research project that aims to produce hydrogen on an environmentally friendly and cost-effective ...rch award. The new process of producing 'green' hydrogen uses three abundant and renewable sources sunligh...K, Sweden, Greece, USA, Australia and Germany. hydrogen has huge potential as an environmentally clean ene...

Synthetic catalyst mimics nature's 'hydrogen economy'

... a catalyst that acts like nature's most pervasive hydrogen processor. The researchers describe their work i...drogenase and nickel-iron hydrogenase function as hydrogen processors, much like platinum. "Nature relies o...ups of the catalytic site to include the substrate hydrogen atom." The researchers' model of the nickel-iron...

Scientists work to plug microorganisms into the energy grid

...odiesel, researchers are also looking at producing hydrogen from renewable resources. Donohue's lab is workin...ter sphaeroides that use photosynthesis to produce hydrogen from a combination of cellulosic feedstocks and sunlight. The hydrogen can then converted to electricity using fuel cells...

One sponge-like material, three different applications

...ersity chemists, it can remove mercury from polluted water, easily separate hydrogen from other gases and, perhaps most impressive of all, is a more effective c...es carbon dioxide from hydrogen, an application that could be useful in the hydrogen economy. The gas separation process takes advantage of the 'soft' sulfu...

Progress toward artificial tissue?

...or 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 and...

DOE funds bio-inspired solar fuel center at Arizona State

...ight to convert water cheaply and efficiently into hydrogen fuel and oxygen. Society requires a renewable sour...se of solar energy to produce a clean fuel such as hydrogen is essentially the only process that can satisfy t...t to oxidize water (producing oxygen gas) and make hydrogen or other fuels. "This project demonstrates the ...

Conference tackles technology needed to address climate change

...ce dinner on May 14 at LIUNA Station; John Boyd, past president, Golder Associates; David Sanborn Scott, vice-president, International Association for hydrogen Energy. WHAT: 2nd Climate Change Technology Conference WHO: The Right Honourable Edward Schreyer John Gerretsen, Ontario Minister of the Env...

Breaking the ties that bind: New hope for biomass fuels

...ulose into sheets. The sheets are held together by hydrogen bondsan electrostatic attraction of a positive por...by other types of attractions that are weaker than hydrogen bonds. The plant then spins these sheets into high... cellulose generally has a well-ordered network of hydrogen bonds holding it together, the material also displ...

2009 ASPB Summer Undergraduate Research Fellowship award announcement

...action is responsible for SAUR19's functionality. Eric Johnson, University of Massachusetts Amherst Mentor: Alice Cheung Probing Intracellular hydrogen Peroxide Condition in Wild type and Mutants Defective in Stress-signaling I hope to finish up my current research by the end of my senior year. This ...

Home tooth bleaching slightly reduces enamel strength

...he research is published in a recent issue of the Journal of Dentistry . Tooth bleaching products contain solutions of various strengths of either hydrogen peroxide or carbamide peroxide, which provide the whitening effect. They bleach teeth by producing unstable free radicals that attack pigment molecule...

Diet secrets of 'the Royals'

...ought, they may run into a reproductive wall." hydrogen and Oxygen: A Record of Dry Times and Rainy Seasons Water is made of hydrogen and oxygen, so ratios of rare hydrogen-2 (deuteriu...e isotope composition of their hair," he adds. The hydrogen isotope ratio in elephant tail hair drops when rai...

UNH: Pavement sealcoat a source of toxins in stormwater runoff

...with a layer of sealcoat applied to the pavement, but the water running off the surface into nearby streams will be carrying more than just oxygen and hydrogen molecules. New research conducted at the University of New Hampshire Stormwater Center (UNHSC) indicates that sealcoat may contribute to increasingly ...

American Chemical Society Weekly PressPac -- April 1, 2009

...ave tried for years to find a material to optimize hydrogen storage in futuristic fuel cell vehicles. Despite ...aterials, 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 ...
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