Navigation Links
Scientists trick iron-eating bacteria into breathing electrons instead
Date:1/28/2013

act with Fe(II), so you should be able to provide a stream of pure electrons to the outsides of the bacteria and get them to grow.

Bond and his colleagues added the marine iron oxidizer Mariprofundus ferrooxydans PV-1, along with some nutrient medium, to an electrode carefully tuned to provide electrons at the same energy level, or potential, as Fe(II) would provide. The idea, says Bond, was to "fool the bacteria into thinking they're at the world's best buffet of Fe(II) atoms."

It worked. The bacteria multiplied and formed a film on the electrode, Bond says, and eventually they were able to grow M. ferrooxydans with no iron in the medium, proof that the bacteria were living off the electrons they absorbed from the electrode to capture carbon dioxide and replicate. And since the electron donor is a solid surface, say the authors, it's pretty likely that the bacterial electron-harvesting machinery is exposed on the outer membrane of the cell.

It's this capture of carbon dioxide that could enable electrochemical cultivation to create biofuels or other useful products one day, Bond says.

"Bacteria are experts at the capture of carbon dioxide. They build cells and compounds" with the carbon, he says. They might one day be exploited as microscopic energy packagers: bacteria like M. ferrooxydans could capture electricity from an electrode, combine it with carbon dioxide, and package it as a carbon-rich compound we could use as fuel. This would take the energy in electricity, which is ephemeral, and convert it into a tangible product that could be stored in a tank. But that kind of work is a long way off, cautions Bond.

"If there are 100 steps to making this work this is step one," he says.


'/>"/>
Contact: Jim Sliwa
jsliwa@asmusa.org
202-942-9297
American Society for Microbiology
Source:Eurekalert

Page: 1 2

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Queens scientists seek vaccine for Pseudomonas infection
3. Scientists produce eye structures from human blood-derived stem cells
4. American Society of Plant Biologists honors early career women scientists
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Scientists discover new method of proton transfer
7. Salk scientists open new window into how cancers override cellular growth controls
8. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
9. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
10. UGA scientists reveal genetic mutation depicted in van Goghs sunflower paintings
11. Genetic mutation depicted in van Goghs sunflower paintings revealed by scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/24/2014)... Scientists at The New York Stem Cell ... to creating a viable cell replacement therapy for ... , For the first time, NYSCF scientists generated ... samples of patients with primary progressive multiple sclerosis ... induce these stem cells into becoming oligodendrocytes, the ...
(Date:7/24/2014)... ply silent freeways, solar panels blanket rooftops and power ... howling winds and from the blazing desert sun. , ... and economically feasible to convert California,s all-purpose energy infrastructure ... Energy , the plan shows the way to ... that could create tens of thousands of jobs and ...
(Date:7/24/2014)... at Albert Einstein College of Medicine of ... J. Fox Foundation for Parkinson,s Research to translate a ... This drug discovery project will test chemical compounds on ... a drug that acts on an underlying cause of ... help many people manage their symptoms, we are eager ...
Breaking Biology News(10 mins):NYSCF scientists 1 step closer to cell therapy for multiple sclerosis patients 2Stanford study shows how to power California with wind, water and sun 2Stanford study shows how to power California with wind, water and sun 3Stanford study shows how to power California with wind, water and sun 4Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 2Albert Einstein College of Medicine receives grant from the Michael J. Fox Foundation to fund drug discovery project targeting Parkinson's 3
... organizations, educational and research institutions, and other stakeholders have ... research funding for food and agriculture. This initiative represents ... speak up in support of science for food and ... of the Joint Select Committee on Deficit Reduction (the ...
... systems are now commonly used to distribute water in many ... a plastic called cross-linked polyethylene (PEX). Are these pipes harmful ... of drinking water? Previous international studies have shown ... taste and odour to drinking water. It has also been ...
... "It is strange to think of a sea turtle as ... at the Smithsonian,s National Museum of Natural History, "but they ... skin and shells." Feuerstein is co-author of a recent ... that make a home on the bodies Olive Ridley and ...
Cached Biology News:1,200 speak up for Federal research funding for Food and Agriculture 2Survey identifies sea turtle 'hitchhikers' 2
(Date:7/24/2014)... July 24, 2014  Now available is a stem ... Rehealth Regenerative Therapies , located in Guadalajara, ... active people a new health option: stem cell ... age, countless patients suffer from joint and muscle injuries ... muscle tears, torn rotator cuff, tennis elbow, and knee ...
(Date:7/24/2014)... have yet to materialise. Yet, scientists are making ... computers faster. One such approach relies on quantum ... applying an electric field. A new study demonstrates ... quantum dots (TQDs) with electrical impulses can help ... should TQDs be used as quantum information units, ...
(Date:7/24/2014)... Your cell phone may stay charged ... storage capacity. , New research indicates that lithium-ion ... at Lawrence Livermore National Laboratory and ... components will perform as electrodes. , The growing ... for higher-performance batteries. Several key characteristics of lithium-ion ...
(Date:7/24/2014)... -- Neogen Corporation (Nasdaq: NEOG ) advised market ... from new rodenticide research are premature. In its regular ... 22, 2014, Neogen,s CEO commented about several new developments ... "It was my intent Tuesday at our conference call ... type of rodenticide, but certainly not to give any ...
Breaking Biology Technology:Stem Cells In Sports Injuries, Joints And Muscular Pain 2Stem Cells In Sports Injuries, Joints And Muscular Pain 3Getting More Life out of Lithium-ion Batteries 2Neogen comments on SenesTech 2
... ... software featuring new ClearTrial TRACK provides integrated planning, outsourcing, project tracking, reforecasting, accrual ... ... ClearTrial ( www.cleartrial.com ), the leading provider of Clinical Trial Operations (CTO) software, ...
... ... America has invaded the natural habitat of the western prairie fringed orchid and has caused ... are regaining the upper hand with integrated control techniques that are eliminating the leafy ... ...
... , , HOUSTON, Sept. 24 ... Browne, Chief Financial Officer, will present at the JMP Securities 4th ... 2009 at 3:30 PM EDT. JMP Securities will host a ... http://www.wsw.com/webcast/jmp9/cybx/ . The replay will be available for 90 ...
Cached Biology Technology:ClearTrial Launches Industry-first Software Platform for Integrating Clinical Trial Operations from Plan to Cash™, Driving Operational Efficiencies and Accelerating Clinical Development 2ClearTrial Launches Industry-first Software Platform for Integrating Clinical Trial Operations from Plan to Cash™, Driving Operational Efficiencies and Accelerating Clinical Development 3ClearTrial Launches Industry-first Software Platform for Integrating Clinical Trial Operations from Plan to Cash™, Driving Operational Efficiencies and Accelerating Clinical Development 4Weed Scientists Take Steps to Protect Rare Orchid 2Weed Scientists Take Steps to Protect Rare Orchid 3Cyberonics to Present at JMP Securities 4th Annual Healthcare Focus Conference 2