Navigation Links
X-ray laser sees photosynthesis in action
Date:2/14/2013

Opening a new window on the way plants generate the oxygen we breathe, researchers used an X-ray laser at the Department of Energy's (DOE) SLAC National Accelerator Laboratory to simultaneously look at the structure and chemical behavior of a natural catalyst involved in photosynthesis for the first time.

The work, made possible by the ultrafast, ultrabright X-ray pulses at SLAC's Linac Coherent Light Source (LCLS), is a breakthrough in studying atomic-scale transformations in photosynthesis and other biological and industrial processes that depend on catalysts, which efficiently speed up reactions. The research is detailed in a Feb. 14 paper in Science.

"All life that depends on oxygen is dependent on photosynthesis," said Junko Yano, a Lawrence Berkeley National Laboratory chemist and co-leader in the experiment. "If you can learn to do this as nature does it, you can apply the design principles to artificial systems, such as the creation of renewable energy sources. This is opening up the way to really learn a lot about changes going on in the catalytic cycle."

Catalysts are vital to many industrial processes, such as the production of fuels, food, pharmaceuticals and fertilizers, and represent a $12 billion-per-year market in the United States alone. Natural catalysts are also key to the chemistry of life; a major goal of X-ray science is to learn how they function in photosynthesis, which produces energy and oxygen from sunlight and water.

The LCLS experiment focused on Photosystem II, a protein complex in plants, algae and some microbes that carries out the oxygen-producing stage of photosynthesis. This four-step process takes place in a simple catalyst a cluster of calcium and manganese atoms. In each step, Photosystem II absorbs a photon of sunlight and releases a proton and an electron, which provide the energy to link two water molecules, break them apart and release an oxygen molecule.

Past s
'/>"/>

Contact: Andy Freeberg
afreeberg@slac.stanford.edu
650-926-4359
DOE/SLAC National Accelerator Laboratory
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. High-energy X-rays shine light on mystery of Picassos paints
2. X-ray laser helps fight sleeping sickness
3. Advance in X-ray imaging shines light on nanomaterials
4. X-ray vision exposes aerosol structures
5. CU-Boulder physicists use ultrafast lasers to create first tabletop X-ray device
6. NTU research embraces laser and sparks cool affair
7. INRS develops a nanohybrid with remarkable properties using a new laser-plasma process
8. Recently FDA-Approved Full Neck Treatment for Sagging Skin Now Available at Maryland Laser Skin and Vein Institute
9. Researchers create laser the size of a virus particle
10. From lectures to explosives detection: Laser pointer identifies dangerous chemicals in real-time
11. Worlds smallest semiconductor laser created by University of Texas scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
X-ray laser sees photosynthesis in action
(Date:1/14/2014)... Carahsoft and CDS Federal Services have scheduled ... 2pm EST (11am PST), “Natural Language Processing: Converting Raw ... technology can turn raw, heterogeneous data into actionable knowledge ... online webinar will last approximately one hour. , Synopsis: ...
(Date:1/14/2014)... Jan. 14, 2014 The largest international professional ... plants and therapeutic derivatives thereof has endorsed an ... researchers about the challenges of adulterated herb and ... The Society for Medicinal Plant ...
(Date:1/14/2014)... Global Record Systems, LLC, (GRS), ... solutions for patients, physicians, the biopharmaceutical industry, regulators, ... the signing of a three-year Research Collaboration Agreement ... (FDA). This initiative is designed to generate ...
(Date:1/14/2014)... January 14, 2014 Independent publisher Bitingduck ... and Montreal, Canada, has big ideas for 2014 in ... press's goals are to produce high-quality, low-cost, DRM-free ebooks ... local businesses. , The first major development will ...
Breaking Biology Technology:Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2Bitingduck Press Looks Forward to 2014 With Multimedia E-books 2
... SHENYANG, China , May 11 /PRNewswire-Asia-FirstCall/ ... China -based biotechnology,company focused on researching, developing, manufacturing and marketing,biopharmaceutical products, ... ended March 31, 2010 on May 16, 2010 ,at ... , ...
... new papers, Rice University researchers report using ultracentrifugation (UCF) ... One team, led by Rice Professor Junichiro Kono ... made a small but significant step toward the dream ... highly conductive quantum nanowire. The other, led by ...
... , , ... Resverlogix Corp. (TSX:RVX) announced today that it will host a live teleconference ... pm Eastern/ 11:00 am Mountain time . The purpose of the ... a slide presentation followed by a question and answer session regarding the ...
Cached Biology Technology:3SBio Inc. To Report 2010 First Quarter Unaudited Financial Results on May 16, 2010 2Nano parfait a treat for scientists 2Nano parfait a treat for scientists 3Resverlogix Notice of Conference Call & Webcast for Year End Update 2
(Date:4/17/2014)... suggests that fish consumption advisories for expecting mothers ... contaminants like persistent organic pollutants (POPs). , ... including University of Toronto Scarborough PhD student Matt ... different levels of environmental contamination, a mother,s compliance ... the body influenced exposure in her children. , ...
(Date:4/17/2014)... German . Our ... provide us with a continuous stream of information about our ... still in a car the world glides by us ... without effort, our brain calculates self-motion from this "optic flow". ... steady gaze during our own movements. Together with biologists from ...
(Date:4/17/2014)... White House honored Clemson professor Rajendra Singh Thursday ... to promote and expand solar deployment in the ... D. Houser Banks Professor of Electrical and Computer ... Nanoelectronics, is considered a local hero leading the ... economic opportunity in solar power and driving policy ...
Breaking Biology News(10 mins):Fish consumption advisories fail to cover all types of contaminants 2How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... and the International Society for Computational Biology (ISCB) are ... year, the journal Bioinformatics will once again ... Bioinformatics and the ISCB have ... under the new official partnership. ISCB members enjoy a ...
... mutations in a gene that helps the body metabolize ... are at higher risk for side effects, including compromised ... new research. Published online Feb. 18 by the ... , the study suggests this genetic approach could also ...
... thought of as harmful yet few know that bacteria ... the role of bacteria in water treatment, Nanyang Technological ... three continents. Researchers will study the mechanisms of cell-to-cell ... will enable us to come up with better solutions ...
Cached Biology News:Gene mutation increases drug toxicity, rejection risk in pediatric kidney transplants 2Gene mutation increases drug toxicity, rejection risk in pediatric kidney transplants 3NTU seals global partnerships on environmental sciences R&D 2
... genome-wide microRNA expression profiling and built ... microfluidic on-chip synthesis platform. These microarrays ... comprehensive microRNA Expression Profiling Service. ... microRNA Microarray contains all known fish ...
... Microarrays designed for genome-wide microRNA expression ... and powerful Paraflo microfluidic on-chip synthesis ... part of our comprehensive microRNA Expression ... The Maize microRNA Microarray contains ...
... unique quantitative and qualitative capabilities of the ... LC/MS/MS Systems with the new Tempo nano ... a rapid solution for high sensitivity validation ... extensive sample preparation with high instrument selectivity ...
... XL extends the legendary MSn performance of ... structural information through Thermo Scientifics innovations in ... XL is the only mass spectrometer that ... CID. Pulsed Q Collision Induced Dissociation ...
Biology Products: