HOME >> BIOLOGY >> NEWS
Green, leafy spinach may soon power cellphones and laptops

For the first time, MIT researchers have incorporated a plant's ability to convert sunlight to energy into a solid-state electronic "spinach sandwich" device that may one day power laptops and cell phones.

At the heart of the device is a protein complex dubbed Photosystem I (PSI). Derived from spinach chloroplasts, PSI is 10 to 20 nanometers wide. Around 100,000 of them would fit on the head of a pin. "They are the smallest electronic circuits I know of," said researcher Marc A. Baldo, assistant professor of electronic engineering and computer science at MIT.

Baldo and other researchers from MIT, the University of Tennessee and the U.S. Naval Research Laboratory, including electrical and biomedical engineers, nanotechnology experts and biologists, collaborated on the world's first solid-state photosynthetic solar cell. The work was reported in NanoLetters, a publication of the American Chemical Society.

"We have crossed the first hurdle of successfully integrating a photosynthetic protein molecular complex with a solid-state electronic device," Baldo said.

Plants' ability to generate energy has been optimized by evolution, so a spinach plant is extremely efficient, churning out a lot of energy relative to its size and weight. But combining biological and non-biological materials in one device has stymied researchers in the past. Biological materials need water and salt to survive-both are deadly for electronics.

FROM WET TO DRY

A new twist in the current work is a membrane of peptide surfactants-similar to the main ingredient in soap-that helped the photosynthetic complexes self-assemble and stabilize while the circuit was fabricated.

So far, scientists and engineers' efforts to harness the photosynthetic properties of green plants have been most successful with naturally soft organic materials in liquid solutions. But if organic solar cells are to be practical for commercial device
'"/>

Contact: Denise Brehm
brehm@mit.edu
617-253-2704
Massachusetts Institute of Technology
20-Sep-2004


Page: 1 2 3

Related biology news :

1. Green, black tea extracts found to lower cholesterol
2. New standard on the menu, certified slurried spinach
3. Making a safer anthrax vaccine using spinach
4. Wastewater could treat itself, power city
5. ASU researchers demonstrate new technique that improves the power of atomic force micrscopy
6. Coordinating power of circadian rhythms keeps estrus and pregnancy on track
7. FDA approves VYTORIN, first and only to powerfully reduce LDL cholesterol through dual inhibition
8. Spanish scientists develop powerful tool for exploration and integration of biological information
9. Volcanic soils yield new clues about the emergence of powerful chiefdoms in Hawaii
10. Motion that powers sperm provides key to unravelling rare genetic disorder
11. Ethanol to power the future of hydrogen fuel cells

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Green leafy spinach may soon power cellphones and laptops

(Date:7/30/2014)... York University is paving the way for a ... and military troops exposed to poisonous chemicalsparticularly those ... article in the current issue of the journal ... organophosphates, which are compounds commonly used in pesticides ... by NYU School of Engineering Associate Professor of ...
(Date:7/30/2014)... The black truffle uses reversible epigenetic processes to regulate ... The ,methylome, - a picture of the genome regulation ... open access journal Genome Biology and illustrates ... elements and ,jumping genes,. The authors say this may ... are controlled. , Black truffles (Tuber melanosporum), also known ...
(Date:7/30/2014)... Lewis Carroll,s Through the Looking Glass, collaborators from ... Singapore improved a 35-year-old ecology model to better ... of years. , The new model, called a ... Queen Effect," an evolutionary hypothesis introduced by Lee ... organisms must constantly increase their fitness (or ability ...
Breaking Biology News(10 mins):Engineering a protein to prevent brain damage from toxic agents 2How black truffles deal with the jumpers in their genome 2Classic Lewis Carroll character inspires new ecological model 2Classic Lewis Carroll character inspires new ecological model 3
(Date:7/31/2014)... (PRWEB) July 31, 2014 ... and collaboration company, is proud to announce the ... LMS complements Adobe Connect’s elearning tools to quickly ... delivers content with training tools for desktop and ... with LMS is the perfect online training solution, ...
(Date:7/31/2014)... July 31, 2014 The Kidney Cancer Association ... its monthly news magazine, Kidney Cancer News. , Bill ... on a website maintained by an international news organization. When ... increase in viewers.” , This month’s program highlights news of ... analyzed in a recent study. Kidney Cancer News also ...
(Date:7/31/2014)... (PRWEB) July 31, 2014 Boston’s Adult ... itself flush with innovative adult stem cell biotechnologies. ... and has three additional patent applications currently under ... The patented inventions address two of the most vexing ... medicine. Adult stem cells are difficult to identify; ...
(Date:7/31/2014)... Sales Horizons, a leader in sales ... training course – Mastering the Complex Sale ... Drawn from proven sales training programs used by thousands ... Sale online sales training course is available to every ... contact with customers, like technical support, engineers, clinical support, ...
Breaking Biology Technology:SoundConnect Enhances Portfolio with Adobe Connect Learning Management System (LMS) 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 3Sales Horizons Offers Mastering the Complex Sale - a Comprehensive, Online Sales Skills Training Course 2Sales Horizons Offers Mastering the Complex Sale - a Comprehensive, Online Sales Skills Training Course 3
Cached News: