Navigation Links
Temporary storage for electrons: Natural method of producing hydrogen
Date:11/2/2012

Scientists at the Max Planck Institute for Chemical Energy Conversion (MPI CEC) and the Ruhr-Universitt Bochum (RUB) have found through spectroscopic investigations on a hydrogen-producing enzyme that the environment of the catalytic site acts as an electron reservoir in the enzyme. Thus, it can very efficiently produce hydrogen, which has great potential as a renewable energy source. The research team describes their results in the journal "Angewandte Chemie".

Producing hydrogen with enzymes

The system analysed constitutes an enzyme that catalyses the formation and conversion of hydrogen. In its centre it has a double-iron core, and is therefore also called [FeFe] hydrogenase. Hydrogenases are of great interest for energy research, since they can efficiently produce hydrogen. However, new catalysts can only be developed given a deep understanding of their mode of action.

Electron transfer in several steps

In hydrogen production, two electrons get together with two protons. The research team showed that, as expected, the first electron is initially transferred to the iron centre of the enzyme. The second transfer on the other hand is to an iron-sulphur cluster that is located in the periphery. It thus forms a temporary storage for the second electron. This "super-reduced" state may be responsible for the extremely high efficiency of the hydrogenase. Subsequently both electrons are transferred in one step from the enzyme to the protons, so that hydrogen is generated. "Only the use of two different spectroscopic techniques made the discovery possible", says Agnieszka Adamska, a doctoral student at MPI CEC who carried out the spectroscopic studies.

10,000 molecules of hydrogen per second

"Up to 10,000 molecules of hydrogen per second can be generated by a single [FeFe] centre", says Camilla Lambertz, a postdoc at the RUB who prepared the biological samples for the project. The enz
'/>"/>

Contact: Dr. Camilla Lambertz
camilla.lambertz@rub.de
49-234-322-4496
Ruhr-University Bochum
Source:Eurekalert

Page: 1 2

Related biology news :

1. AVT Develops Biometrically Secure Medicine Storage and Retrieval System for Medbox RX
2. Medbox Safe Storage and Access Lockers Gaining Popularity
3. Medbox Developing a Patent Pending Wall-Mounted Biometric Kiosk for Storage of Sensitive Medicine Samples and Supplies for Doctors Offices.
4. Research provides new insights into dogs natural feeding behavior and finds they target a daily dietary intake that is high in fat
5. Study: DNA barcoding can ID natural health products
6. Scientists reveal how natural antibiotic kills tuberculosis bacterium
7. Natural regeneration building urban forests, altering species composition
8. Carnegie Mellon study shows skin-aging radicals age naturally formed particles in the air
9. Ben-Gurion University of the Negev receives $450,000 grant to conduct oil and natural gas research
10. Eco-computer with a natural wood look
11. Health care savings, naturally
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/13/2015)... , Feb. 13, 2015 ACT Genomics ... that aims to transform cancer genomic information into ... the company has raised US$ 8 million in the ... in Taipei, Taiwan , ACT ... ACTOnco™. With the aim to implement next generation ...
(Date:2/12/2015)... Feb. 12, 2015 NXT-ID, Inc. (NASDAQ: ... a biometric authentication company focused on the growing mobile ... patent 62/113114 for DISTRIBUTED METHOD AND SYSTEM ... The patent further establishes NXT-ID,s position in the emerging ... portfolio the ability for multiple devices to collaborate with ...
(Date:2/10/2015)...  Alere Inc. (NYSE: ALR), a global leader ... the quarter ended December 31, 2014. ... Alere said, "We made substantial progress in the ... leader in rapid diagnostics and delivering against our ... in early January enabled us to substantially reduce ...
Breaking Biology News(10 mins):ACT Genomics Raises $8 Million in its First Private Funding Round 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3Alere Inc. Announces Fourth Quarter 2014 Results 2Alere Inc. Announces Fourth Quarter 2014 Results 3Alere Inc. Announces Fourth Quarter 2014 Results 4Alere Inc. Announces Fourth Quarter 2014 Results 5Alere Inc. Announces Fourth Quarter 2014 Results 6Alere Inc. Announces Fourth Quarter 2014 Results 7Alere Inc. Announces Fourth Quarter 2014 Results 8Alere Inc. Announces Fourth Quarter 2014 Results 9Alere Inc. Announces Fourth Quarter 2014 Results 10Alere Inc. Announces Fourth Quarter 2014 Results 11Alere Inc. Announces Fourth Quarter 2014 Results 12Alere Inc. Announces Fourth Quarter 2014 Results 13Alere Inc. Announces Fourth Quarter 2014 Results 14Alere Inc. Announces Fourth Quarter 2014 Results 15Alere Inc. Announces Fourth Quarter 2014 Results 16Alere Inc. Announces Fourth Quarter 2014 Results 17Alere Inc. Announces Fourth Quarter 2014 Results 18Alere Inc. Announces Fourth Quarter 2014 Results 19Alere Inc. Announces Fourth Quarter 2014 Results 20Alere Inc. Announces Fourth Quarter 2014 Results 21Alere Inc. Announces Fourth Quarter 2014 Results 22Alere Inc. Announces Fourth Quarter 2014 Results 23Alere Inc. Announces Fourth Quarter 2014 Results 24Alere Inc. Announces Fourth Quarter 2014 Results 25Alere Inc. Announces Fourth Quarter 2014 Results 26Alere Inc. Announces Fourth Quarter 2014 Results 27Alere Inc. Announces Fourth Quarter 2014 Results 28Alere Inc. Announces Fourth Quarter 2014 Results 29Alere Inc. Announces Fourth Quarter 2014 Results 30Alere Inc. Announces Fourth Quarter 2014 Results 31Alere Inc. Announces Fourth Quarter 2014 Results 32Alere Inc. Announces Fourth Quarter 2014 Results 33
... the Walter and Eliza Hall Institute in Melbourne, Australia, ... the UK,s peak academy promoting excellence in science. ... to the Royal Society in 2011, including four Australians. ... process on the basis of excellence in science. ...
... in Paris indicating an increase in financing for women,s and ... and Child Health (PMNCH). In 2010, the G8 ... with an initial commitment of US$5 billion by 2015. The ... will surpass this initial commitment by roughly 53%. ...
... FRANCISCO, May 19, 2011 Sutro Biopharma, a ... with improved pharmaceutical properties, today announced that a ... Biotechnology and Bioengineering demonstrates that the company,s ... high-yield protein synthesis and scale-up with straightforward downstream ...
Cached Biology News:Top Australian malaria researcher elected Fellow of the Royal Society 2Top Australian malaria researcher elected Fellow of the Royal Society 3A G8 report released today in Paris indicating an increase in financing for women's and children's health 2Study Shows Sutro Biopharma's Biochemical Protein Synthesis Technology Enables Rapid Production and Scale-Up of Biopharmaceuticals 2
(Date:2/26/2015)... Feb. 26, 2015 Tauriga Sciences, Inc. (OTCQB: TAUG) ... with interests in the natural wellness sector and in ... that its products will be featured at the SEC ... 27 th Annual Growth Stock Conference on March ... 1 Ritz Carlton Drive, Dana Point ...
(Date:2/26/2015)... SAN FRANCISCO, Calif. , Feb. 26, 2015 /PRNewswire/ ... the treatment of cancer, today announced that Sean ... a corporate overview at the upcoming Cowen and Company ... Boston . Dr. McCarthy,s presentation will take ... About CytomX Therapeutics CytomX Therapeutics develops ...
(Date:2/25/2015)... Feb. 25, 2015 /CNW/ - Radient Technologies Inc. (TSX-V: RTI) ... financial results for the third quarter of its fiscal ... Management,s Discussion and Analysis, and the CEO & CFO ... December 31, 2014 are available on www.SEDAR.com ... Appointment The Corporation is also pleased to announce the ...
(Date:2/25/2015)... Market Publishers Ltd is happy to announce that ... have been recently uploaded to its catalogue. , ... . This research report provides wealth of qualitative and ... mortar industry as well as includes an all-round analysis ... It focuses on the main regions such as North ...
Breaking Biology Technology:SEC Compliance Featuring Products From Tauriga Sciences, Inc. at ROTH Capital Conference 2SEC Compliance Featuring Products From Tauriga Sciences, Inc. at ROTH Capital Conference 3SEC Compliance Featuring Products From Tauriga Sciences, Inc. at ROTH Capital Conference 4Radient Technologies Inc. Releases Third Quarter Results and Appoints New Interim CFO 2New Research Studies by 9Dimen Research Now Available at MarketPublishers.com 2New Research Studies by 9Dimen Research Now Available at MarketPublishers.com 3New Research Studies by 9Dimen Research Now Available at MarketPublishers.com 4
... from decreased size, antennaswhether in a cell phone ... system range, and bandwidth when their size is ... been directed toward producing antennas by screen-printing, inkjet ... such as dipoles and loops," explained Jennifer T. ...
... Md., March 16, 2011 Northwest Biotherapeutics (OTC Bulletin ... in the Company,s stock,  Northwest Biotherapeutics (NWBT) commented today ... to the Company or its products or programs.  ... with the trial-related activities for its large, 240-patient clinical ...
... Reportlinker.com announces that a new market research report ... Global Specialty Enzymes Industry ... worldwide markets for Specialty Enzymes in US$ Million ... Enzymes, Polymerases, Nucleases, and Other Specialty Enzymes. The ...
Cached Biology Technology:3-D printing method advances electrically small antenna design 2Northwest Biotherapeutics Addresses Recent Market Activity 2Global Specialty Enzymes Industry 2Global Specialty Enzymes Industry 3Global Specialty Enzymes Industry 4Global Specialty Enzymes Industry 5Global Specialty Enzymes Industry 6Global Specialty Enzymes Industry 7Global Specialty Enzymes Industry 8Global Specialty Enzymes Industry 9Global Specialty Enzymes Industry 10Global Specialty Enzymes Industry 11Global Specialty Enzymes Industry 12Global Specialty Enzymes Industry 13Global Specialty Enzymes Industry 14Global Specialty Enzymes Industry 15Global Specialty Enzymes Industry 16Global Specialty Enzymes Industry 17Global Specialty Enzymes Industry 18Global Specialty Enzymes Industry 19Global Specialty Enzymes Industry 20Global Specialty Enzymes Industry 21Global Specialty Enzymes Industry 22Global Specialty Enzymes Industry 23Global Specialty Enzymes Industry 24
... solution for scheduling, performing and documenting ... pipettes and liquid handling devices. Collects ... Supports all gravimetric calibration protocols ... NCCLS and GLP requirements Includes ...
... Activins are polypeptide hormones which ... (TGF-) superfamily. The TGF- superfamily is ... factors which control many aspects of ... (1). Other members incude TGF-s, bone ...
... which belong to the transforming growth ... is a large group of extra-cellular ... of development, reproductive function and tumor ... bone morphogenetic proteins, growth differentiation factors, ...
The new Silencer siRNA Starter Kit is perfect for researchers new to RNAi. It provides all of the reagents, protocols, and instructions necessary to get underway with siRNA transfection and ensure su...
Biology Products: