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:5/27/2015)... , May 27, 2015  The Companion Diagnostics ... understanding and unprecedented access to the partnering deals ... healthcare companies during 2014. Using these ... into the partnering activities of the past year. ... the partnering and alliances deals announced worldwide.The initial ...
(Date:5/27/2015)... 27, 2015 RXi Pharmaceuticals Corporation (NASDAQ: ... discovering and developing innovative therapies primarily in the ... has commenced a public offering of shares of ... its common stock and overallotment purchase rights to ... of common stock, warrants and overallotment purchase rights ...
(Date:5/27/2015)... , May 26, 2015 ... announced the addition of Jain PharmaBiotech,s new ... and Companies" to their offering. ... molecular diagnostics technologies that will play an ... health, pharmaceutical industry, forensics and biological warfare ...
(Date:5/27/2015)... , May 26, 2015 Research and ... the "Global Breast Cancer Monoclonal Antibodies Market ... Globally, Roche seems to dominate the breast ... Its block buster molecule, Herceptin has been able ... was found that breast cancer cells become recalcitrant ...
Breaking Biology Technology:Companion Diagnostics Deals and Alliances of 2014 2RXi Pharmaceuticals Announces Proposed Public Offering of Common Stock and Warrants 2RXi Pharmaceuticals Announces Proposed Public Offering of Common Stock and Warrants 3Global Molecular Diagnostics Market 2015-2024 - Analysis of Key Technologies, Markets and Companies 2Global Molecular Diagnostics Market 2015-2024 - Analysis of Key Technologies, Markets and Companies 3Global Breast Cancer Monoclonal Antibodies Market Outlook 2020 2Global Breast Cancer Monoclonal Antibodies Market Outlook 2020 3
(Date:5/27/2015)... , May 27, 2015   ... medication safety systems and image documentation solutions ... of comprehensive, technologically-advanced automation solutions, is pleased ... integration. The Codonics® Safe Label System® (SLS), ... in conjunction with the Omnicell Anesthesia Workstation, ...
(Date:5/26/2015)... May 26, 2015 Research ... addition of the "Saudi Arabia Biometric Systems ... their offering. ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ,The biometric ... is projected to grow at over 22% ... is attributed to the surging demand for better ...
(Date:5/25/2015)... SYDNEY , May 25, 2015  Australia,s market ... inception stage, although 2014 saw the advent of several ... on 24 April 2015 is expected to ignite interest ... devices in Australia . This in ... the industry and drive new partnerships amongst vendors and ...
Breaking Biology News(10 mins):Codonics and Omnicell Expand Partnership 2Codonics and Omnicell Expand Partnership 3Codonics and Omnicell Expand Partnership 4Saudi Arabia Biometric Systems Market Forecast and Opportunities, 2020 with Morpho Safran, ZK Technlogy, and Suprema Dominating 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 3Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 4
... Laboratory (NREL) recently recognized the professionals behind the ... its Intellectual Property & Technology Transfer Awards. ... spectrum of renewable energy and energy efficiency technologies ... with industry partners, the luncheon celebrated NREL,s commercialization ...
... 2013 /PRNewswire-iReach/ -- Glutathione is the body,s master ... a large variety of other toxins and insults. Debate over ... levels in cells and tissues has simmered for years. Now, ... is effective in increasing the body,s stores of this vital ...
... researchers at the University of Pittsburgh have discovered a ... the same approach that HIV uses to infect cells. ... be described in the June issue of the journal ... promising in the development of a potential treatment for ...
Cached Biology News:NREL staff recognized for breakthrough technologies 2Clinical Tests Demonstrate Long-Term Effectiveness of Oral Glutathione Supplements - Kyowa Study 2Clinical Tests Demonstrate Long-Term Effectiveness of Oral Glutathione Supplements - Kyowa Study 3Pitt discovery holds potential in destroying drug-resistant bacteria 2Pitt discovery holds potential in destroying drug-resistant bacteria 3
...
Verotoxin IIbeta (457)...
Thermo Labsystems offers a basic reader for 96-well microplates that is especially adapted for ELISA and other colorimetric assays....
... Universal Vacuum System UVS400 is a multi-tasking ... UVS400 combines a refrigerated vapor trap and ... single integrated unit. The easy-to-use, wide-mouth glass ... into single jar for easy disposal. The ...
Biology Products: