Navigation Links
Protein enables discovery of quantum effect in photosynthesis

aboratory and professor of chemistry at the University of California, and colleagues used 2-D spectroscopy to study what happens inside a bacteriochlorophyll complex, and detected a 'quantum beating."

The effect, described in the April 12, 2007 issue of Nature, occurs when light-induced excitations in the complex meet and interfere constructively ­ much like the interactions that occur between the ripples formed by throwing stones into a pond.

The collaboration is a good illustration of interdisciplinary science. The Washington University group's expertise is in photosynthesis, especially antenna systems, and the West Coast group's specialty is advanced laser techniques. The quantum finding would have been impossible without collaboration.

Good vibrations

"We have obtained the first direct evidence that remarkably long-lived wavelike electronic quantum coherence plays an important part in energy transfer processes during photosynthesis," said Fleming, the principal investigator for the study. "This wavelike characteristic can explain the extreme efficiency of the energy transfer because it enables the system to simultaneously sample all the potential energy pathways and choose the most efficient one."

Fleming is also a professor of chemistry at UC Berkeley, and an internationally acclaimed leader in spectroscopic studies of the photosynthetic process. In a paper entitled, "Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems," he and his collaborators report the detection of "quantum beating" signals, coherent electronic oscillations in both donor and acceptor molecules, generated by light-induced energy excitations, like the ripples formed when stones are tossed into a pond.

Electronic spectroscopy measurements made on a femtosecond (millionths of a billionth of a second) time-scale showed these oscillations meeting and interfering constructively, forming wav
'"/>

Source:Washington University in St. Louis


Page: 1 2 3

Related biology news :

1. Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
2. Protein discovery could unlock the secret to better TB treatment
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. An HIV Protein Plays a Surprising Role in Gene Activation
5. Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease
6. New SARS Protein Linked To Important Cell Doorway
7. The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures
8. PANTHER Protein Classification System Database 5.0
9. Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimers, Parkinsons Disease
10. Newly Discovered Compound Blocks Known Cancer-Causing Protein
11. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Protein enables discovery quantum effect photosynthesis

(Date:4/17/2014)... is available in German . ... recognise objects; they also provide us with a continuous stream ... around, fall or sit still in a car the ... on our retinas. Seemingly without effort, our brain calculates self-motion ... stable position and a steady gaze during our own movements. ...
(Date:4/17/2014)... RIVERSIDE, Calif. One day about eight years ago, ... of California, Riverside, and her father were on a field ... stumbled upon an orchid they had never seen before. , ... authority on orchids. The orchid turned out to be ... Silveras: Lophiaris silverarum . , "Lophiaris" is the genus ...
(Date:4/17/2014)... honeybees in Europe, Asia and the United States are ... be impacting native honeybee populations at this time, according ... include including Nosema microsporidia and Varroa ... resilient to these invasive pests, which suggests to us ... Asia and the United States currently are not necessary ...
Breaking Biology News(10 mins):How 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 4Orchid named after UC Riverside researcher 2Orchid named after UC Riverside researcher 3East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
... disadvantage , Some viruses' ability to exploit the human ... both a blessing and curse, according to the findings ... Hopkins Bloomberg School of Public Health. The process is ... allow the dengue virus to grow more rapidly in ...
... wreck that is stroke, the cutoff of oxygen kills brain ... overexciting receptors on the surface of brain cells. Now, researchers ... discovered how an insidious chain of molecular events contributes to ... issue of Neuron, Jun Gao and colleagues say that their ...
... funded by the Fungal Research Trust have discovered millions ... our pillows. , Aspergillus fumigatus, ... most likely to cause disease; and the resulting condition ... in leukaemia and bone marrow transplant patients. Fungi also ...
Cached Biology News:Computer models aid understanding of antibody-dependent enhancement in spread of dengue fever 2Molecular cabal contributes to stroke damage 2Pillows - a hot bed of fungal spores 2
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains how ... latent viruses is the Epstein Barr Virus (EBV), and one ... is a chronic inflammatory disease that destroys the body’s joints. ... patients have high concentrations of EBV DNA in their bodies ...
(Date:1/15/2014)... Arizona (PRWEB) January 15, 2014 2013 ... for Scottsdale’s Brain State Technologies®. They saw continued independent ... Medical Center who were awarded a $1 million grant ... published in “Brain and Behavior” a peer reviewed journal, ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of ... of tinnitus. Patients listen to sound therapy that is ... of weeks to months, their tinnitus volume decreases. , AudioNotch ... Music and Notched White Noise. Now, AudioNotch is pleased to ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 Date: ... p.m. , Location: Warrington Country Club, 1360 Almshouse Road, Warrington, ... only national nonprofit organization solely dedicated to finding a cure ... those affected worldwide, will host its annual Crystal Ball on ...
Breaking Biology Technology:Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... 2011 Advanced Life Sciences Holdings, Inc. ... company engaged in the discovery, development and commercialization of ... and respiratory diseases, today announced that it will present ... January 10-12th in San Francisco. (Logo: ...
... Texas, Jan. 4, 2011 Imagine a biological weapon so ... entire race. Impossible? Not when the seeds of death are ... ancient viruses lay dormant in each of us, buried deep ... survive should someone resurrect those deadly diseases? Doug ...
... 4, 2011 Reportlinker.com announces that ... available in its catalogue: ... DNA Probes and Biochips New Product ... for Instrument and Reagent Suppliers ...
Cached Biology Technology:Advanced Life Sciences to Present at the Biotech Showcase™ 2011 Conference 2James Bond Meets Cheaper by the Dozen: An Action Thriller the Entire Family Will Enjoy 2Reportlinker Adds The 2011 Molecular Diagnostics Market: DNA Probes and Biochips New Product Development Opportunities and Business Expansion Strategies for Instrument and Reagent Suppliers 2
... utilizies CTI Molecular Imaging's proprietary Focus™ ... sensitivty, and a large imaging volume ... to image multiple mice or large ... a dedicated small animal PET (Positron ...
... a convenient and affordable alternative for diagnostic ... an eight-port disposable manifold, the StatMatic I ... pipettes. The eight-port manifold, designed for 96-well ... 200, 250, or 300mL with well-to-well accuracy ...
... (MOPS Buffered) has been developed specifically for ... solution. HRP Stabilizer prevents the loss ... of the antibody or protein antigen portion ... at 0.2 microns., ,Contents: Aqueous, protein-containing ...
384 Well PCR Plate Carrier for Thermo-Sealer...
Biology Products: