Navigation Links
Video-article shows how to purify magnetic bacteria
Date:11/15/2012

Magnetotactic bacteria, like Magnetospirillum magneticum, have evolved cellular processes that allow them to take up iron molecules to produce magnetic nanocrystals like magnetite. Since they were first discovered and isolated in 1975 by Robert Blakemore, scientists continue to be fascinated by these unique bacteria, whether as a means to isolate biogenic magnetite or to understand the evolutionary advantages of producing these minerals. A new video-article in JoVE (Journal of Visualized Experiments) details a procedure to purify and enrich samples of magnetotactic bacteria from aquatic environments, developed in the laboratory of Dr. Brian Lower at The Ohio State University.

Magnetotactic bacteria are microorganisms, typically found in stratified water columns or aquatic sediments all over the world. Though many of these bacteria tend to thrive in environments with low levels of oxygen, the defining characteristic they share are small, magnetic, membrane bound nanocrystals of either the iron oxide magnetite or the iron sulfide greigite.

"These nanocrystals allow the organisms to align themselves with the earth's magnetic field and swim up or down based on the geomagnetic field to find their microenvironments," Dr. Lower explains. "These bacteria are fairly ubiquitous. They can be found all over the world, and interestingly they can be found in sediment samples from millions of years ago."

These bacteria are a valuable anomaly to the scientific community. Their fossil record gives geologists accurate representations of the Earth's past magnetic field, when combined with carbon dating, and could potentially provide other clues about earth's geological history. The magnetotactic minerals may also have medical or other novel applications. "You can coat these minerals with antibodies and target specific cancer cell lines or heat the magnets with an alternating magnetic field to kill a cancer cell line," says Dr. Lower.

"We decided to publish in JoVE because it will allow a wide variety of scientists to see how easy it is to isolate and enrich these species. We hope the video-protocol will spur other collaborations or new research," Dr. Lower said. The article will be published on November 15, 2012 in JoVE's General section. JoVE acquisition editor Rachelle Baker stated, "We are very excited for this article not only because it is our first featuring magnetotactic bacteria but we believe it will lay a foundation for other groups to build expand upon this work and share their methods with the community, which is the founding principle of JoVE."


'/>"/>

Contact: Neal Moawed
press@jove.com
617-245-0137
The Journal of Visualized Experiments
Source:Eurekalert  

Related biology news :

1. US preterm birth rate shows 5-year improvement
2. New health-economic model shows benefits of boosting dietary calcium intake
3. Clinical hypnosis can reduce hot flashes after menopause, Baylor study shows
4. Reducing radiation: Heart Institute model shows hope for new standards worldwide
5. New Study Shows That Improvements in Employee Health Behaviors Persist Over Two Years
6. New genomics study shows ancestry could help solve disease riddles
7. Sandia shows monitoring brain activity during study can help predict test performance
8. UMD study shows exercise may protect against future emotional stress
9. UC Santa Cruz study shows how sea otters can reduce CO2 in the atmosphere
10. New study shows promise in using RNA nanotechnology to treat cancers and viral infections
11. Study shows hope of greater global food output, less environmental impact of agriculture
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Video-article shows how to purify magnetic bacteria
(Date:3/20/2017)... 2017 At this year,s CeBIT Chancellor Dr. ... DERMALOG. The Chancellor came to the DERMALOG stand together with the Japanese ... CeBIT partner country. At the largest German biometrics company the two government ... and iris recognition as well as DERMALOG´s multi-biometrics system.   ... ...
(Date:3/13/2017)... Future of security: Biometric Face Matching software  ... ... enables to match face pictures against each other or against large databases. The ... ... fastest software for biometric Face Matching on the market. The speed is at ...
(Date:3/7/2017)... Brandwatch , the leading social intelligence company, today ... to uncover insights to support its reporting, help direct future ... UK,s leading youth charity will be using Brandwatch Analytics social listening ... better understanding of the topics and issues that are a priority ... ...
Breaking Biology News(10 mins):
(Date:4/21/2017)... ... April 21, 2017 , ... The University of Connecticut, ... funding to three startups through the UConn Innovation Fund. The $1.5 million UConn ... affiliated with UConn. , The UConn Innovation Fund provides investments of up to ...
(Date:4/20/2017)... Ca (PRWEB) , ... April 20, 2017 , ... ... Virtual Event , this new webinar will explore challenging patient cases when screening ... to the hospital, there may be a need for bridging parental anticoagulation especially ...
(Date:4/20/2017)... ... , ... NetDimensions appoints Bill Mastin, a learning technology veteran, as its new ... the learning technologies industry, Mastin joins NetDimensions from the New York office of learning ... LEO, Mastin served as SVP of the North America offices and prior to that, ...
(Date:4/20/2017)... Dutch philosopher Koert van Mensvoort - founder of the Next Nature ... Eindhoven - has written a ,Letter to Humanity, in support of ... becoming a slave and victim to its own technology, but to employ technology ... ... Mensvoort – founder of the Next Nature Network and Fellow of ‘Next Nature’ ...
Breaking Biology Technology: