Featured Research

from universities, journals, and other organizations

New transportable technology detects bacteria in water

Date:
November 10, 2010
Source:
American Institute of Physics
Summary:
To keep soldiers in the battlefield healthy, the US Army is exploring new ways to detect harmful bacteria in water.

To keep soldiers in the battlefield healthy, the U.S. Army is exploring new ways to detect harmful bacteria in water.

Current techniques for analyzing water in the field can take as long as 24 hours to complete, according to Bart Lipkens of Western New England College in Springfield, Massachusetts and his colleagues at Physical Sciences in Andover, Ma.

They are working on an alternative technology that uses sound waves to accelerate the process.

"The goal of our project is to speed up the detection of bacteria in water supplies," said Lipkens. "We're developing a first order trigger, an alarm that maybe there's something in the water that warrants further investigation."

Lipkens has created a device that quickly gathers bacterial spores from running water using acoustical radiation force. It broadcasts waves of ultrasound into the liquid, exerting a pressure on the bacteria that pushes it into a collection pocket. In previous work, Lipkens used this technique to successfully separate polystyrene beads from water.

The device can draw in 15 percent of the bacterial cells from the water in a single pass. When the flow is shut off, the bacteria settle and can then be transferred to another apparatus for identification. Compared to existing methods, this procedure is quick.

Bacillus cereus, the species of bacteria used in this experiment, is about a micron in diameter and harmless. But its properties are very similar to many types of bacteria that would be harmful in drinking water.

"We think we would ultimately get the same results with harmful bacteria," said Lipkens, who will present his data at the 2nd Pan-American/Iberian Meeting on Acoustics in Cancun, Mexico.

The talk "Separation of bacterial spores from flowing water in macroscale cavities by ultrasonic standing waves" by Bart Lipkens was presented on November 16.


Story Source:

The above story is based on materials provided by American Institute of Physics. Note: Materials may be edited for content and length.


Cite This Page:

American Institute of Physics. "New transportable technology detects bacteria in water." ScienceDaily. ScienceDaily, 10 November 2010. <www.sciencedaily.com/releases/2010/11/101110113159.htm>.
American Institute of Physics. (2010, November 10). New transportable technology detects bacteria in water. ScienceDaily. Retrieved September 3, 2014 from www.sciencedaily.com/releases/2010/11/101110113159.htm
American Institute of Physics. "New transportable technology detects bacteria in water." ScienceDaily. www.sciencedaily.com/releases/2010/11/101110113159.htm (accessed September 3, 2014).

Share This



More Plants & Animals News

Wednesday, September 3, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Snack Attack: Study Says Action Movies Make You Snack More

Snack Attack: Study Says Action Movies Make You Snack More

Newsy (Sep. 2, 2014) You're more likely to gain weight while watching action flicks than you are watching other types of programming, says a new study published in JAMA. Video provided by Newsy
Powered by NewsLook.com
Get A Mortgage, Receive A Cat — Only In Russia

Get A Mortgage, Receive A Cat — Only In Russia

Newsy (Sep. 2, 2014) The incentive is in keeping with a Russian superstition that it's good luck for a cat to be the first to cross the threshold of a new home. Video provided by Newsy
Powered by NewsLook.com
U.N. Says Ebola Travel Restrictions Will Cause Food Shortage

U.N. Says Ebola Travel Restrictions Will Cause Food Shortage

Newsy (Sep. 2, 2014) The U.N. says the problem is two-fold — quarantine zones and travel restrictions are limiting the movement of both people and food. Video provided by Newsy
Powered by NewsLook.com
Sharks Off the Menu and on the Tourist Trail in Palau

Sharks Off the Menu and on the Tourist Trail in Palau

AFP (Sep. 2, 2014) Tourists in Palau clamour to dive with sharks thanks to a pioneering conservation initiative -- as the island nation plans to completely ban commercial fishing in its vast ocean territory. 01:15 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins