Navigation Links
Nature's billion-year-old battery key to storing energy
Date:4/18/2012

Montreal, April 19, 2011 New research at Concordia University is bringing us one step closer to clean energy. It is possible to extend the length of time a battery-like enzyme can store energy from seconds to hours, a study published in the Journal of The American Chemical Society shows.

Concordia Associate Professor Lszl Klmn along with his colleagues in the Department of Physics, graduate students Sasmit Deshmukh and Kai Tang has been working with an enzyme found in bacteria that is crucial for capturing solar energy. Light induces a charge separation in the enzyme, causing one end to become negatively charged and the other positively charged, much like in a battery.

In nature, the energy created is used immediately, but Klmn says that to store that electrical potential, he and his colleagues had to find a way to keep the enzyme in a charge-separated state for a longer period of time.

"We had to create a situation where the charges don't want to or are not allowed to go back, and that's what we did in this study," says Klmn.

Klmn and his colleagues showed that by adding different molecules, they were able to alter the shape of the enzyme and, thus, extend the lifespan of its electrical potential.

In its natural configuration, the enzyme is perfectly embedded in the cell's outer layer, known as the lipid membrane. The enzyme's structure allows it to quickly recombine the charges and recover from a charge-separated state.

However, when different lipid molecules make up the membrane, as in Klmn's experiments, there is a mismatch between the shape of the membrane and the enzyme embedded within it. Both the enzyme and the membrane end up changing their shapes to find a good fit. The changes make it more difficult for the enzyme to recombine the charges, thereby allowing the electrical potential to last much longer.

"What we're doing is similar to placing a racecar in on snow-covered street
'/>"/>

Contact: Clea Desjardins
clea.desjardins@concordia.ca
514-848-2424 x5068
Concordia University
Source:Eurekalert

Page: 1 2

Related biology news :

1. TriCipher myOneLogin SignatureBook Offers Digital Signatures On-Demand
2. Genetic signatures provide new direction in liver cancer
3. Beverages leave geographic signatures that can track peoples movements
4. Genome signatures enable tracking of algal complexity
5. Blood signatures to diagnose infection
6. CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand
7. Study identifies new genetic signatures of breast cancer drug resistance
8. UMMS researchers identify epigenetic signatures of autism
9. Epigenetic signatures direct the repair potential of reprogrammed cells
10. Scientists decipher 3 billion-year-old genomic fossils
11. Hydrogen tank lighter than battery
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... 19, 2014  Earlier this year Donald Spector ... and one of the most prolific inventors in the ... transmitted from Smartphones to third party agencies. Spector envisioned ... one of the earliest known patents in this area. ... the military, child care, elder care and hospital applications. ...
(Date:11/21/2014)... -- C-Labs LLC, a leading provider of remote and ... announced the appointment of John Traynor to ... advisor to the firm, Mr. Traynor will now oversee ... out of the C-Labs office in Redmond, ... , Chief Executive Officer. Photo - ...
(Date:11/18/2014)... , Nov. 18, 2014  The Secure Identity ... Association today jointly announce the formation of The ... of its Identity and Biometric Entry and ... Framework received official support from BORDERPOL, the international ... improve and provide expertise regarding border security, traveler ...
Breaking Biology News(10 mins):Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 2Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 4C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3
... Stephen Moose has developed a corn plant with enormous potential ... silage, Moose said, due to a greater number of leaves ... energy crop. The gene known as Glossy 15 was ... waxy coating that acts like a sun screen for the ...
... for its health benefits. But now scientists have ... produce medicines for several autoimmune and inflammatory diseases, ... open access journal BMC Biotechnology . ... research organizations have participated in the study as ...
... knows, children love sweet-tasting foods. Now, new research ... indicates that this heightened liking for sweetness has a ... rate. "The relationship between sweet preference and growth ... demands increase. Children are programmed to like sweet ...
Cached Biology News:Doubling a gene in corn results in giant biomass 2Tobacco makes medicine 2Liking sweets makes sense for kids 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... Maryland, July 1 Human Genome Sciences, Inc. (Nasdaq: ... top-line results available on Monday, July 20, from BLISS-52, the ... (belimumab, formerly LymphoStat-B(R)) in systemic lupus erythematosus (SLE). ... ) , , Senior management will host a ...
... DUSSELDORF, Germany, July 1 Gerresheimer AG, a,leading ... life,science industry, has sold its Technical Plastics operations, which are ... Group, Bad Soden,Germany. "Through the sale of the Technical Plastics ... step in its focus on the core,business of pharma & ...
... modified chlorophyll from an alga so that it resembles the ... able to determine the structure of these light antennae. This ... an artificial leaf. The researchers will be publishing an article ... the PNAS journal in the week starting 29 ...
Cached Biology Technology:Human Genome Sciences to Host July 20 Conference Call to Discuss Top-Line Phase 3 Results for Benlysta(TM) (Formerly Lymphostat-B(R)) in Systemic Lupus Erythematosus 2Gerresheimer Sells Technical Plastics Business 2First step to converting solar energy using 'artificial leaf' 2
...
Whole blood is collected from healthy guinea pigs of either sex from US source which are free of visible diseases at time of blood collection. Hemolytic titer: CH50 = 435 units...
... l-[35S]in vitro cell labeling mix, ... *Aqueous solution stabilized with 0.1% ... pyridine 3,4-dicarboxylic acid. *Amino acid ... labeling containing l-[35S]Methionine and l-[35S]Cysteine. ...
...
Biology Products: