About Careers Internship MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

Cable Bacteria Discovered That Function As Electrical Cables

by Bidita Debnath on November 1, 2012 at 9:49 PM
Font : A-A+

 Cable Bacteria Discovered That Function As Electrical Cables

A new type of bacteria is discovered by Danish scientists which form a kind of gigantic power lines to survive between the different layers of marine mud.

Researchers at Aarhus University, Denmark, made a sensational discovery almost three years ago when they measured electric currents in the seabed.

Advertisement

It was unclear as to what was conducting the current, but the researchers imagined the electric currents might run between different bacteria via a joint external wiring network.

The researchers have now solved the mystery. It turns out that the whole process takes place inside bacteria that are one centimetre long.

They make up a kind of live electric cable that no one had ever imagined existed. Each one of these 'cable bacteria' contains a bundle of insulated wires that conduct an electric current from one end to the other.
Advertisement

"Our experiments showed that the electric connections in the seabed must be solid structures built by bacteria," says PhD student Christian Pfeffer, Aarhus University.

He could interrupt the electric currents by pulling a thin wire horizontally through the seafloor. Just as when an excavator cuts our electric cables.

In microscopes, scientists found a hitherto unknown type of long, multi-cellular bacteria that was always present when scientists measured the electric currents.

"The incredible idea that these bacteria should be electric cables really fell into place when, inside the bacteria, we saw wire-like strings enclosed by a membrane," says Nils Risgaard-Petersen, Aarhus University. Kilometers of living cables

The bacterium is one hundred times thinner than a hair and the whole bacterium functions as an electric cable with a number of insulated wires within it. Quite similar to the electric cables we know from our daily lives.

"Such unique insulated biological wires seem simple but with incredible complexity at nanoscale," says PhD student Jie Song, Aarhus University, who used nanotools to map the electrical properties of the cable bacteria.

Source: ANI
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Anemia among Indian Women and Children Remains a Cause of Concern- National Family Health Survey-5
H1N1 Influenza Prevention in Children: What Parents Need to Know
Dietary Factors Responsible for Dihydrotestosterone (DHT) Production and Hair Loss
View all
Recommended Reading
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Shigellosis MRSA - The Super Bug Food Safety for Health Antibiotics 

Most Popular on Medindia

Color Blindness Calculator Pregnancy Confirmation Calculator Indian Medical Journals Vent Forte (Theophylline) Loram (2 mg) (Lorazepam) Calculate Ideal Weight for Infants Iron Intake Calculator Blood Pressure Calculator Nutam (400mg) (Piracetam) Selfie Addiction Calculator
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
×

Cable Bacteria Discovered That Function As Electrical Cables Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests