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:


(Date:4/13/2017)... 2017 According to a new market research report ... Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and Region ... expected to grow from USD 14.30 Billion in 2017 to USD 31.75 ... ... MarketsandMarkets Logo ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, Inc. ... technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate governance ... Gino ... we look forward to their guidance and benefiting from their ...
(Date:4/5/2017)... LONDON , April 4, 2017 KEY ... is anticipated to expand at a CAGR of 25.76% ... neurodegenerative diseases is the primary factor for the growth ... full report: https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The ... of product, technology, application, and geography. The stem cell ...
Breaking Biology News(10 mins):
(Date:4/27/2017)... ... April 27, 2017 , ... Sierra Instruments announces ... capillary thermal mass flow technology provide exponentially more accurate mass flow data than ... of all industrial processes—such as those involving chemical reactions, combustion, respiration, pharmaceutical, and ...
(Date:4/27/2017)... WASHINGTON , April 27, 2017  Kinexum, a ... science products, today announces the appointment of Thomas ... G. Alexander ("Zan") Fleming, M.D., Kinexum founder, who becomes ... strategic advisor to Kinexum clients. Thomas ... take on the Kinexum mission and lead the firm,s ...
(Date:4/26/2017)... Baltimore, Maryland (PRWEB) , ... April 26, 2017 ... ... it will be demonstrating its new Bioflash MailGuardtm mail security screening solution at ... The Bioflash MailGuard system provides a fast, highly accurate, easy to ...
(Date:4/25/2017)... ... April 25, 2017 , ... Franz Inc ... (CL) development tools, and market leader for Semantic Graph Database technology, ... available within the most effective system for developing and deploying applications to solve ...
Breaking Biology Technology:
Cached News: