Navigation Links
First step to converting solar energy using 'artificial leaf'
Date:6/30/2009

An international team of researchers has modified chlorophyll from an alga so that it resembles the extremely efficient light antennae of bacteria. The team was then able to determine the structure of these light antennae. This is the first step to converting sunlight into energy using an artificial leaf. The researchers will be publishing an article on their research findings in the online Early Edition of the PNAS journal in the week starting 29 June. Leiden researcher Swapna Ganapathy has obtained her PhD based on this subject, under the supervision of Professor Huub de Groot, one of the initiators of the research.

Forests at nano scale

They are the subject of dreams: artificial forests at nano scale. Or pavements and motorways where gaps in the surface are filled with pigment molecules that collect sunlight and convert it into fuel and other forms of clean energy. But before this can happen, artificial photosynthesis systems first have to be developed that work both quickly and efficiently.

Two things are needed to generate fuel from sunlight: an antenna that harvests light, and a light-driven catalyst. The article in PNAS is about the first of these: the antenna.

Imitating light antennae of bacteria

The fastest light harvesters are to be found in nature: in green leaves, algae and bacteria. The light antennae of bacteria chlorosomes are the fastest of all. They have to be capable of harvesting minimal quantities of light particles in highly unfavourable light conditions, such as deep in the sea. These chlorosomes are made up of chlorophyll molecules. The art is to imitate these systems very precisely.

German colleagues from the University of Wrzburg in Huub de Groot's team modified chlorophylls from the alga Spirulina, such that they resembled the pigments of bacteria. De Groot's Leiden group then studied the structure of these semi-synthetic light antennae.

'/>"/>
Contact: Hilje Papma
hd.papma@bb.leidenuniv.nl
31-715-273-282
Leiden University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Bio/Data Corporation Launches vW Select(TM) - The Worlds First and Only Complete Ristocetin CoFactor Assay
2. febit First to Offer Newly Published Mouse Genome on a Chip for DNA/RNA Detection and Enrichment
3. Scientists create first electronic quantum processor
4. Register to Win a Ski Weekend and Make Your Synthesis Easier with EasyMax™: the First Automated Chemistry Development Tool That Requires No Training
5. First-Ever Egg Donor Web Portal Becomes One of The Largest Resources for Aspiring Parents in the U.S.
6. OncoGenex Pharmaceuticals Completes Amendment to Phase 3 Special Protocol Assessment for Confirming Survival Benefit in Patients Receiving OGX-011 with First-Line Docetaxel for Metastatic Prostate Cancer
7. YM BIOSCIENCES REPORTS DAIICHI-SANKYO ENROLLS FIRST PATIENTS IN PHASE II, FIRST-LINE LUNG CANCER TRIAL WITH NIMOTUZUMAB
8. Virtify, Inc. Delivers Industrys First Enterprise Content Compliance Software Suite for Life Sciences Companies
9. Sinovac Receives Chinas First Influenza A (H1N1) Vaccine Order
10. A-WIT Technologies Releases World's First Low Cost C Stamp(TM) Based Biotechnology Laboratory in a Box
11. MEDomics Announces MitoDx(TM), the First NextGen Mitochondrial Genome Diagnostic Test
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/16/2014)... Mo. From cell phones to cars and ... life. Scientists and technology companies constantly are seeking ... for the first time using a water-based solution, ... a long-lasting and more efficient nuclear battery that ... a reliable energy source in automobiles and also ...
(Date:9/16/2014)... BlueInGreen® , a water quality company ... dissolved gases into liquids, announced the addition of ... representative firm to its sales network. H2Flow will ... and wastewater applications in the Canadian provinces of ... 1992 and serves Quebec and Ontario markets for ...
(Date:9/16/2014)... Sept. 16, 2014  Donald Fresne, President and CEO of ... Stephan Vagner , PhD to its Scientific Advisory Committee. ... Toulouse, France , performed research at Embl (European ... at Inserm, the French institute of health and medical research. ... at the Curie Institute, Orsay, France , ...
(Date:9/16/2014)... 2014  The Council for Entrepreneurial Development (CED), ... the country, today released a mid-year update to ... It showed that in the first half ... startups in the technology, life science, advanced manufacturing ... a variety of sources. Significant investment in technology companies ...
Breaking Biology Technology:BlueInGreen® Expands into Canada – Signs Representative Agreement with H2Flow Equipment Inc. 2New Appointment to the Scientific Advisory Committee at Egenix, Inc. 2CED's Mid-Year Update to its Innovators Report Shows NC Startups Attracting Investment From Across the Globe with Several High-Profile Investment Deals, IPOs and Acquisitions Signaling Strength of Entrepreneurial Sector 2CED's Mid-Year Update to its Innovators Report Shows NC Startups Attracting Investment From Across the Globe with Several High-Profile Investment Deals, IPOs and Acquisitions Signaling Strength of Entrepreneurial Sector 3CED's Mid-Year Update to its Innovators Report Shows NC Startups Attracting Investment From Across the Globe with Several High-Profile Investment Deals, IPOs and Acquisitions Signaling Strength of Entrepreneurial Sector 4
... ... first private companies providing paternity and other ancestry testing in Germany, ... new German Genetic Diagnosis Act ("Gendiagnostikgesetz"): German legislation has passed several ... as well as paternity testing. The new Genetic Diagnosis Act, which ...
... ... may be asking how the billions poured into science R&D has helped stimulate our economy. ... just ended as their first branded year with new hires, new instruments and more business ... ...
... ON , Jan. 26 /PRNewswire-FirstCall/ - YM BioSciences ... the Company that it may now enroll patients at US ... of its lead product, nimotuzumab. One of the two trials ... for curative treatment and being treated palliatively and the other ...
Cached Biology Technology:bj-diagnostik GmbH: The German Genetic Diagnosis Act will Become Effective 01.02.2010 - What Will Change for Paternity Testing? 2bj-diagnostik GmbH: The German Genetic Diagnosis Act will Become Effective 01.02.2010 - What Will Change for Paternity Testing? 3bj-diagnostik GmbH: The German Genetic Diagnosis Act will Become Effective 01.02.2010 - What Will Change for Paternity Testing? 4US Nanotechnology Instrument Manufacturer Proves the Success of R&D Stimulus 2YM BioSciences announces FDA clearance for two ongoing Phase II nimotuzumab trials into USA 2YM BioSciences announces FDA clearance for two ongoing Phase II nimotuzumab trials into USA 3YM BioSciences announces FDA clearance for two ongoing Phase II nimotuzumab trials into USA 4YM BioSciences announces FDA clearance for two ongoing Phase II nimotuzumab trials into USA 5
(Date:9/16/2014)... for the dinosaurs 66 million years ago decimated the ... extent than their deciduous peers, according to a study ... the journal PLOS Biology . , Applying ... fossilized leaves of angiosperms flowering plants excluding ... ecology of a diverse plant community thriving during a ...
(Date:9/16/2014)... the Keystone XL pipeline (KXL) would likely increase oil ... researchers surveyed by the non-profit organization Near Zero. The ... Climate Impact," and includes both supporters and opponents of ... oil sands could lead to significantly higher greenhouse gas ... markets respond. , "This report examines three main ...
(Date:9/16/2014)... Schizophrenia is associated with increased rates and intensity of ... that the relationship between schizophrenia and smoking stems, in ... to self-medicate symptoms and cognitive impairment associated with the ... issue of Biological Psychiatry , sheds light on ... nicotine receptors in the brain was lower in schizophrenia ...
Breaking Biology News(10 mins):Meteorite that doomed dinosaurs remade forests 2Meteorite that doomed dinosaurs remade forests 3Meteorite that doomed dinosaurs remade forests 4Keystone XL would likely raise oil sands production and greenhouse gas emissions 2Smoking and schizophrenia linked by alterations in brain nicotine signals 2
... shows that a "gatekeeper" protein plays an important role in ... C/EBP alpha, is normally abundantly expressed to help protect skin ... The NC State research shows, however, that the protein is ... Moreover, when the protein is inactivated in special lab mice ...
... JOLLA, CAThe seeds sprouting in your spring garden may still be ... finite energy pack contained within each seed. Once those resources are ... a "green" photosynthetic program. Researchers at the Salk Institute for Biological ... In a study published in the May 24, 2011, issue ...
... highly coveted technical capabilities as the observation of ... detection of low concentrations of biochemical agents and ... Researchers with the U.S. Department of Energy (DOE),s ... with researchers at the University of Stuttgart in ...
Cached Biology News:Lack of 'gatekeeper' protein linked to skin cancer 2It's not easy being green 2It's not easy being green 3Sharpening the nanofocus 2Sharpening the nanofocus 3Sharpening the nanofocus 4
... Extract Protein Array Kit is designed for ... The expression of a protein in an ... antibody. When the antibody binds the protein, ... chemiluminescent or fluorescent signal created by directly ...
... Stabilizer is a is a bovine protein-free ... product is an aqueous solution that contains ... buffered saline), pH 6.6 - 7.2. ... methylisothiazolone and 0.02% bromonitrodioxane as a preservative. ...
... mounting medium designed for the preservation ... especially recommended when using tracers containing ... can also be used with conventional ... Rhodamine (TMRITC) and Texas Red. Gel/Mount ...
...
Biology Products: