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:10/13/2017)... ... ... The American Board of Family Medicine's (ABFM) Board of Directors has selected ... Dr. James C. Puffer upon his retirement. Dr. Newton will serve in the position ... the end of 2018. Upon assuming the role of President and CEO on January ...
(Date:10/13/2017)... Shelton, CT (PRWEB) , ... October 13, 2017 , ... ... and long-term care services, staged a mock evacuation of the facility as part of ... Department, Shelton Fire Department, Echo Hose EMS and Shelton City Emergency Manager, as well ...
(Date:10/13/2017)... ... 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of ... popular and least understood books in the Holy Scriptures, Revelation. The Book of Revelation ... scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... healthcare compliance program management, will showcase a range of technology and learning solutions ... Living (NCAL) Convention and Expo to be held October 14–18, 2017 at the ...
(Date:10/12/2017)... Bethesda, MD (PRWEB) , ... October 12, 2017 , ... ... Award of Excellence to Carol Friedman, PhD, FACMI, during the Opening Session of AMIA’s ... 4 – 8. , In honor of Morris F. Collen, a pioneer in the ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... 28, 2017 Cohen Veterans Bioscience and Early ... of wearable and home sensors for real-time monitoring of ... Foundation, a nonprofit organization focused on disruptive health solutions ... affordable analytical system to record and integrate behavioral, cognitive, ... ...
(Date:9/23/2017)... , Sept. 22, 2017 Janssen Biotech, Inc. ... response letter from the U.S. Food and Drug Administration ... of sirukumab for the treatment of moderately to severely ... additional clinical data are needed to further evaluate the ... severely active RA. ...
(Date:9/18/2017)... Pa. and KALAMAZOO, Mich. , Sept. 18, ... , and OptiMed Specialty Pharmacy of ... to offer a strategic hub service that expedites and ... sought-after personal spirometer, Spiro PD 2.0, and wellness management ... spirometer is a medical device used to measure lung ...
Breaking Medicine Technology: