Navigation Links
Speeding up E. coli detection
Date:1/14/2011

A simple, automated method of tracking E. coli uses a laser to detect and monitor the microbe in potentially contaminated bodies of water or waterways. The technique described this month in the International Journal of Computational Biology and Drug Design could reduce the incidence of waterborne disease outbreaks.

Microbial contamination of water is a worldwide environmental and health problem. Water related diseases are the leading causes of illness and death in the world. The impacts of water quality on public health and economy are highly significant as evidenced by waterborne disease outbreaks, boil water advisories, contamination of irrigation waters, and beach closures. Considerable government and private efforts have been made to improve and monitor water quality.

Beach managers need reliable methods to determine the origins of contaminants in order to reduce those sources and maintain a healthy beach. Sources of fecal contamination in recreational waters are often unknown and/or of non-point origins. Identifying and reducing the sources of fecal contamination for a particular beach is often hindered by the presence of multiple and diffuse sources, natural variability in bacterial indicator concentrations over space and time, and the dynamic currents, weather patterns, and natural processes that affect these concentrations.

The Indiana Department of Environmental Management (IDEM), for example, has provided substantial funding support to coastal communities through the BEACH Act to increase the frequency of beach monitoring. Whereas beach monitoring for fecal bacterial indicators such as E. coli is necessary, knowing the source of bacterial contamination is fundamentally important for preventing microbial pollution in water. Simple counts of fecal indicator bacteria do not provide vital information regarding the source of microbial contamination. It is thus necessary to develop scientific techniques for microbial source tracking. With knowledge gained from employment of appropriate methodologies, it would be possible to assess risk, choose effective remediation strategies, and bring polluted waters into compliance with regulatory policies.

Now, Bin Chen of Purdue University Calumet, and colleagues there and at the University of Minnesota, St Paul, have turned to a laser technique for potential use in microbial source tracking. Their technique uses laser imaging of bacterial colonies and high-resolution optical scattering image analysis to identify the host species of E. coli in a sample.

"The water quality of lakes, rivers and streams in many areas has long been monitored in the government and other agencies," the team says, "however, many of them still do not meet the goal of 'fishable and swimmable' because identifying the source of bacterial contamination is difficult." The new technology, demonstrated by Chen and colleagues, could address that shortfall allowing water contamination to be remediated.


'/>"/>

Contact: Bin Chen
chen121@calumet.purdue.edu
Inderscience Publishers
Source:Eurekalert

Related medicine news :

1. Nausea and speeding heart can be signs of flu in pregnant women
2. Alzheimers Foundation of America Applauds Social Security for Speeding Disability Benefits for Early-Onset Alzheimers Disease
3. New glaucoma test allows earlier, more accurate detection
4. Boston University School of Medicine awarded grants to improve early detection of lung cancer
5. New tool in the early detection of bowel disease
6. NIH study suggests that early detection is possible for prion diseases
7. Noninvasive Glaucoma Test Might Speed Up Detection
8. Brains Error-Detection System Demystified
9. Portable breast scanner allows cancer detection in the blink of an eye
10. New Tumor Marker May Improve Cancer Detection: Study
11. Colonoscopy technique increases polyp detection in far reaches of right colon
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... , ... June 25, 2016 , ... "With 30 hand-drawn ... specific project," said Christina Austin - CEO of Pixel Film Studios. , ProHand ... all within Final Cut Pro X . Simply select a ProHand generator and ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a ... area —Johnson is one of the first doctors to perform the treatment. Orthobiologics ...
(Date:6/24/2016)... CA (PRWEB) , ... June 24, 2016 , ... A ... procedures that most people are unfamiliar with. The article goes on to state that ... but also many of these less common operations such as calf and cheek reduction. ...
(Date:6/24/2016)... ... 2016 , ... Marcy was in a crisis. Her son James, eight, was out of control. ... and physically. , “When something upset him, he couldn’t control his emotions,” remembers Marcy. ... rocks at my other children and say he was going to kill them. If ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... now offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with ... Damon brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... Revolutionary technology includes multi-speaker listening to conquer ... in advanced audiology and hearing aid technology, has today ... world,s first internet connected hearing aid that opens up ...      (Photo: http://photos.prnewswire.com/prnh/20160622/382240 ) , ... , TwinLink™ - the first dual communication ...
(Date:6/23/2016)... , June 23, 2016 ... "Surgical Procedure Volumes: Global Analysis (United States, China, ... Canada)" report to their offering. ... essential tool for healthcare business planners, provides surgical procedure ... at surgery trends with an in-depth analysis of growth ...
(Date:6/23/2016)...  The National Pharmaceutical Council (NPC) today announced ... research organization as its newest member.  ... president and chief scientific officer, Mallinckrodt Pharmaceuticals, will ... Board of Directors. ... us in support of our efforts to conduct ...
Breaking Medicine Technology: