Navigation Links
'Tall order' sunlight-to-hydrogen system works, neutron analysis confirms
Date:2/3/2011

OAK RIDGE, Tenn. Feb. 3, 2011 -- Researchers at the Department of Energy's Oak Ridge National Laboratory have developed a biohybrid photoconversion system -- based on the interaction of photosynthetic plant proteins with synthetic polymers -- that can convert visible light into hydrogen fuel.

Photosynthesis, the natural process carried out by plants, algae and some bacterial species, converts sunlight energy into chemical energy and sustains much of the life on earth. Researchers have long sought inspiration from photosynthesis to develop new materials to harness the sun's energy for electricity and fuel production.

In a step toward synthetic solar conversion systems, the ORNL researchers have demonstrated and confirmed with small-angle neutron scattering analysis that light harvesting complex II (LHC-II) proteins can self-assemble with polymers into a synthetic membrane structure and produce hydrogen.

The researchers envision energy-producing photoconversion systems similar to photovoltaic cells that generate hydrogen fuel, comparable to the way plants and other photosynthetic organisms convert light to energy.

"Making a, self-repairing synthetic photoconversion system is a pretty tall order. The ability to control structure and order in these materials for self-repair is of interest because, as the system degrades, it loses its effectiveness," ORNL researcher Hugh O'Neill, of the lab's Center for Structural Molecular Biology, said.

"This is the first example of a protein altering the phase behavior of a synthetic polymer that we have found in the literature. This finding could be exploited for the introduction of self-repair mechanisms in future solar conversion systems," he said.

Small angle neutron scattering analysis performed at ORNL's High Flux Isotope Reactor (HFIR) showed that the LHC-II, when introduced into a liquid environment that contained polymers, interacted with polymers to form lamellar s
'/>"/>

Contact: Bill Cabage
cabagewh@ornl.gov
865-574-4399
DOE/Oak Ridge National Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Caltech-led team creates damage-tolerant metallic glass
2. Climate scientist warns world of widespread suffering if further climate change is not forestalled
3. X-ray crystallography reveals structure of precursor to blood-clotting protein
4. Speed installation of system to monitor vital signs of global ocean, scientists urge
5. Parasite investigations breed 3 Tall Poppies
6. Three-quarters of new solar systems worldwide were installed in the EU in 2009
7. Texas A&M research produces tools to study stallions subfertility
8. Scientists develop sustainable, environmentally friendly potting medium
9. Mother Nature to provide an environmentally friendly method for reducing mosquitoes
10. Innovotech receives funding to advance environmentally friendly agricultural crop protection product
11. Evidence that nanoparticles in sunscreens could be toxic if accidentally eaten
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... many fires burning in eastern New South Wales, Australia ... , At 03:35 UTC on July 11 (12:35 p.m. ... passed over eastern New South Wales (NSW), the Moderate ... image of the region and spotted smoke (light brown) ... thermal bands, are outlined in red. , The New ...
(Date:7/11/2014)... Cell scientists have set a "mouse TRAP" to capture ... a recent study published in the Journal of ... a technique called TRAP to extract cellular and genetic ... by scientists at the Rockefeller Institute for Medical Research ... the protein-making machinery, or ribosomes, of the cell type ...
(Date:7/11/2014)... international team of researchers, including scientists from the Max ... a reported a major step in understanding photosynthesis, the ... maintains the oxygen in its atmosphere and which is ... earth. , The researchers report the first direct ... namely the step in which a specific protein complex, ...
Breaking Biology News(10 mins):A first direct glimpse of photosynthesis in action 2
... N.C. Feb. 28, 2013 Researchers at Wake ... special population of adult stem cells in bone marrow ... intestine and produce intestinal cells, suggesting their potential to ... (IBD). Up to 1 million Americans have IBD, ...
... -- In a new study, biologists will investigate the ... has killed a record number of frogs, toads and ... received a $595,000 grant from the National Science Foundation ... and a fungus called Batrachochytrium dendrobatidis (Bd). ...
... decimate the normal intestinal microbiota, which may never ... the GI tract vulnerable to being colonized by ... New York, NY, and Centro Superior de Investigacin ... normal microbial diversity largely eliminated vancomycin-resistant enterococci (VRE) ...
Cached Biology News:Research supports promise of cell therapy for bowel disease 2Biologists explore link between amphibian behavior and deadly disease 2Biologists explore link between amphibian behavior and deadly disease 3Good bacteria may expunge vancomycin-resistant bacteria from your gut 2
(Date:7/10/2014)... Francisco, CA (PRWEB) July 10, 2014 ... family closer together. The Archer Family purchased a ... contained within DNA, but ended up with a lifetime ... discoveries contained within the family members’ DNA genuinely brought ... had decided to search deeper into genetic history and ...
(Date:7/10/2014)... July 10, 2014 OMICS Group’s 5th ... during 18-20 August, 2014 at Double Tree by Hilton ... recent developments in Analytical & Bioanalytical research methods only ... Speaking on this occasion, Dr. Srinubabu Gedela, MD of ... conference is a remarkable one in bringing a unique ...
(Date:7/10/2014)... Senior supply chain management executives from over 50 ... of “Reducing Cost, Lead Time, & Defects in the ... the partnership of the Bio Supply Management Alliance ( ... SCMI) of the University of San Diego in ... Institute of Peace and Justice in San Diego, Devendra ...
(Date:7/10/2014)... , July 10, 2014 On ... Dmitry Medvedev , presented Russia,s ... BIOCAD . The Company is developing a unique project ... project BIOCAD develops a number of innovative drugs based ... diseases. The ceremony took place at the International Exhibition ...
Breaking Biology Technology:Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2
... Suzanne DeCann visits the University of Wisconsin-Eau Claire ... to pick up her newly earned Master of Business Administration ... the first 11 UW-Eau Claire students to earn their MBAs ... shell get her first real look at the campus and ...
... South Carolina , a health insurance provider that ... its evolving document communication needs by designating two ... Esker DeliveryWare Platform and Esker Fax respectively provide ... fax. , ,BlueCross BlueShield has enlisted Esker software ...
... Middleton-based provider of testing instruments used in support of ... announced the purchase of Masthead Imagings assets. ... are the PIPSpro software package and QC-3 phantom, for ... PIPSpro software displays, enhances and analyzes portal images and ...
Cached Biology Technology:UW-Eau Claire graduates first online MBAs 2UW-Eau Claire graduates first online MBAs 3Blue Cross BlueShield of South Carolina implements Esker solutions 2Standard Imaging acquires Canadian PIPSpro radiation treatment technologies 2
... of Taq DNA polymerase. It is a ... Expressed from a gene construct in E. ... 5'-3' exonuclease domain of the DNA polymerase-encoding ... and even more heat-stable DNA polymerase activity ...
... (ELISA) test kits are qualitative one-step kits ... of drugs and/or their metabolites in forensic ... use only. It is recommended that all ... method such as GC/MS. The simple ...
... inhibitor that noncovalently binds and inactivates neutral pancreatic ... RNase 1, T1, T2, H, U1, U2 or ... inhibitor in that it has a more robust ... RNase in the absence of DTT or other ...
...
Biology Products: