Navigation Links
Microbial hair: It's electric
Date:10/11/2010

of measurable current. The conductivity was similar to that of a semiconductor modest but significant.

When the researchers cut the nanowire, the flow of current stopped.

Previous studies showed that electrons could move across a nanowire, which did not prove that nanowires conducted electrons along their length.

El-Naggar's group is the first to carry out this technically difficult but more telling experiment.

Electricity carried on nanowires may be a lifeline. Bacteria respire by losing electrons to an acceptor for Shewanella, a metal such as iron. (Breathing is a special case: Humans respire by giving up electrons to oxygen, one of the most powerful electron acceptors.)

Nealson said of Shewanella: "If you don't give it an electron acceptor, it dies. It dies pretty rapidly."

In some cases, a nanowire may be a microbe's only means of dumping electrons.

When an electron acceptor is scarce nearby, nanowires may help bacteria to support each other and extend their collective reach to distant sources.

The researchers noted that Shewanella attach to electron acceptors as well as to each other, forming a colony in which every member should be able to respire through a chain of nanowires.

"This would be basically a community response to transfer electrons," El-Naggar explained. "It would be a form of cooperative breathing."

El-Naggar and his team are among the pioneers in a young discipline. The term "bacterial nanowire" was coined in 2006. Fewer than 10 studies on the subject have been published, according to co-author Yuri Gorby of The J. Craig Venter Institute in San Diego, discoverer of nanowires in Shewanella.

Gorby and others became interested in nanowires when they noticed that reduction of metals appeared to be occurring around the filaments. Since reduction requires the transfer of electrons to a metal, the researchers suspected that the filaments were carrying
'/>"/>

Contact: Carl Marziali
marziali@usc.edu
213-740-4751
University of Southern California
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Paratek to Present Clinical Data at the 50th Interscience Conference on Antimicrobial Agents and Chemotherapy
2. Ansell Launches Worldss First Antimicrobial Surgical Glove
3. New AccuPRO-ID™ Microbial Identification Testing Service
4. The toxicity of antimicrobial silver in products can be reduced
5. SynCo Bio Partners Signs New Manufacturing Agreements to Supply the US Market; Securing its Position as a Market Leader in Microbial Biopharmaceutical Contract Production
6. Microban Signs Exclusive Agreement with Sharp Electronics to Launch Calculators with New Microban(R) 3G Silver(TM) Antimicrobial Technology
7. RB Rubber Introduces Environmentally Friendly Antimicrobial Rubber Flooring Products
8. New Antimicrobial Webs Sterilize Medical Implants for 14 Days
9. Novexel Presents 16 Posters and one Slide Presentation at the 49th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) Meeting in San Francisco
10. BioNeutrals Ygiene(TM) Hospital Grade Antimicrobial Proven To Be Completely Inert to Steel In Independent Corrosion Testing
11. Microban Partners With YogaDirect.com to Launch Yoga Mats With Zinc Antimicrobial Technology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2015)... -- Sanofi, un leader mondial et ... le premier semestre 2015. Le Directeur Général ... Visionner l,interview vidéo et lire la transcription :  ... sommaire de l,interview :  - Résultats ... - Diabète - Praluent ...
(Date:7/29/2015)... Ala., July 29, 2015  HealthSouth ... nation,s largest providers of post-acute healthcare services, offering ... its results of operations for the second quarter ... quarter was characterized by strong volume growth in ... Adjusted EBITDA," said Jay Grinney, President and Chief ...
(Date:7/29/2015)... CHICAGO , July 29, 2015  AmnioChor Inc., ... cell technology, is very pleased to announce that the ... has agreed to invest in their seed round ... OmniBank placental tissue storage capabilities. AmnioChor,s ... placenta, and the human stem cells living within those ...
(Date:7/29/2015)... July 29, 2015 /PRNewswire/ - RepliCel Life Sciences Inc. ... medicine company, is pleased to announce that the final ... have been locked.  Prototypes for industrial and regulatory ... an application for CE mark clearance to market ... in 2016. (Photo: http://photos.prnewswire.com/prnh/20150729/248373 )  ...
Breaking Biology Technology:HealthSouth Reports Results for Second Quarter 2015 2HealthSouth Reports Results for Second Quarter 2015 3HealthSouth Reports Results for Second Quarter 2015 4HealthSouth Reports Results for Second Quarter 2015 5HealthSouth Reports Results for Second Quarter 2015 6HealthSouth Reports Results for Second Quarter 2015 7HealthSouth Reports Results for Second Quarter 2015 8HealthSouth Reports Results for Second Quarter 2015 9HealthSouth Reports Results for Second Quarter 2015 10HealthSouth Reports Results for Second Quarter 2015 11HealthSouth Reports Results for Second Quarter 2015 12HealthSouth Reports Results for Second Quarter 2015 13HealthSouth Reports Results for Second Quarter 2015 14HealthSouth Reports Results for Second Quarter 2015 15HealthSouth Reports Results for Second Quarter 2015 16HealthSouth Reports Results for Second Quarter 2015 17HealthSouth Reports Results for Second Quarter 2015 18HealthSouth Reports Results for Second Quarter 2015 19HealthSouth Reports Results for Second Quarter 2015 20HealthSouth Reports Results for Second Quarter 2015 21HealthSouth Reports Results for Second Quarter 2015 22HealthSouth Reports Results for Second Quarter 2015 23HealthSouth Reports Results for Second Quarter 2015 24HealthSouth Reports Results for Second Quarter 2015 25HealthSouth Reports Results for Second Quarter 2015 26HealthSouth Reports Results for Second Quarter 2015 27HealthSouth Reports Results for Second Quarter 2015 28HealthSouth Reports Results for Second Quarter 2015 29HealthSouth Reports Results for Second Quarter 2015 30HealthSouth Reports Results for Second Quarter 2015 31HealthSouth Reports Results for Second Quarter 2015 32HealthSouth Reports Results for Second Quarter 2015 33HealthSouth Reports Results for Second Quarter 2015 34HealthSouth Reports Results for Second Quarter 2015 35HealthSouth Reports Results for Second Quarter 2015 36
... 8 LS9, Inc., the,Renewable Petroleum Company(TM), today ... Officer. Mr. Haywood brings over 30 years of,experience ... track record of,planning, engineering, execution and start-up of ... year will be pivotal to LS9 as the ...
... Circassia to Develop Dopexamine as Part of Proprietary Post-Surgery ... ... October 8 Circassia Ltd, a specialty,biopharmaceutical company focused on ... has acquired the US, Canadian and Japanese,development and commercialization rights ...
... YORK, Oct. 7 Living Proof, a technology-based,beauty ... introduction, No Frizz -- a line of silicone-free,frizz-eliminating ... the company. The Living Proof team of scientists ... Labs and an Institute Professor at MIT., ...
Cached Biology Technology:LS9, Inc. Appoints Bill Haywood Chief Executive Officer 2Circassia Acquires North American and Japanese Rights to Dopexamine 2Circassia Acquires North American and Japanese Rights to Dopexamine 3Living Proof, Inc.: The Launch of the Next Beauty Revolution 2Living Proof, Inc.: The Launch of the Next Beauty Revolution 3
(Date:7/27/2015)... July 27, 2015   Zynx Health ™, ... clinical improvement solutions, today announced that its ... available on Android smartphones and tablets. With this ... organizations can use ZynxCarebook to securely exchange messages ... streamline care transitions to other care settings, and ...
(Date:7/21/2015)... July 21, 2015 Today, ZTE announced its ... as well as expected revenues in 2015 that relate to sales ... revenue guidance of approximately 2,200 MSEK for 2015. Jörgen ... leading smartphone manufacturer in China and we ... 02 5 for Axon , ...
(Date:7/20/2015)... 20, 2015  Acuity Market Intelligence,s latest research ... of Commerce and Privacy" forecasts that between 2014 ... will be downloaded to smart mobile devices by ... market is projected to generate more than $67.9 ... seven-year forecast period.    "Biometrics is ...
Breaking Biology News(10 mins):Zynx Health Adds Android Device Support to ZynxCarebook Solution 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 3FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2Biometrics on Smart Mobile Devices to Redefine Digital Identity with 12.9 Billion Biometric App Downloads between 2014 and 2020 2
... the IODP Arctic Coring Expedition (ACEX) is making news with ... of Nature, an article by several of the expedition scientists ... warm, unusually wet, and ice-free up to the time the ... Earth's atmosphere ?a period calculated to have occurred 55 million ...
... evolved 7 million years ago, the more advanced species ... researchers believe can effectively block the HIV-1 virus from ... quickly to overcome antiviral compounds designed to prevent infections. ... Cole of UCF's Burnett College of Biomedical Sciences has ...
... known to count the days until spring. Now, scientists have ... scientists here today (Aug. 9) at a meeting of the ... Amasino described studies that have begun to peel back some ... bloom at the optimal time of year. , "Flowering at ...
Cached Biology News:Arctic coring expedition continues to yield new clues 2Defense peptide found in primates may block some human HIV transmissions 2Defense peptide found in primates may block some human HIV transmissions 3Genetic snooze button governs timing of spring flowers 2Genetic snooze button governs timing of spring flowers 3
... the ultimate in utility and flexibility press-to-seal ... the needs of the researcher. They are ... or as sheet material that can be ... isolators are autoclavable and non-cytotoxic and can ...
2,4-Dinitrophenyl hapten is conjugated to Human Serum Albumin (HSA) protein through lysine....
IC50: 3 ng/ml · Limit of detection: 0.5 ng/ml...
Antibodies were affinity purified using epitopes specific to PPP1CC immobilized on solid support....
Biology Products: