New Biosensor for Most Serious Form of Listeria Food Poisoning Bacteria

Summary posted by Meridian on 4/22/2009
Source: Nanowerk
Author: n/a

Scientists at Purdue University and the University of Illinois at Urbana-Champaign, United States, and the Indian Institute of Technology, India, have developed a new biosensor that is faster and more sensitive than current models for detecting the deadliest strain of Listeria food poisoning bacteria. The bacteria is responsible for hundreds of deaths and thousands of hospitalizations each year in the United States, and is particularly dangerous for those with weakened immune systems. Other, already available tests, can detect five of the six known species of Listeria, and use antibodies that signal its presence. The researchers in this study are using heat shock proteins, which the body produces in response to stress, to detect Listeria monocytogenes, the deadliest of the Listeria bacteria. Their tests show that the new biosensor has a microbe capture rate up to 83 percent higher than tests using antibodies. Their study appears in the current issue of the American Chemical Society (ACS)'s Analytical Chemistry journal. The article can be viewed online at the link below.

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our team contact us site map	New Biosensor for Most Serious Form of Listeria Food Poisoning Bacteria Summary posted by Meridian on 4/22/2009 Source: Nanowerk Author: n/a Scientists at Purdue University and the University of Illinois at Urbana-Champaign, United States, and the Indian Institute of Technology, India, have developed a new biosensor that is faster and more sensitive than current models for detecting the deadliest strain of Listeria food poisoning bacteria. The bacteria is responsible for hundreds of deaths and thousands of hospitalizations each year in the United States, and is particularly dangerous for those with weakened immune systems. Other, already available tests, can detect five of the six known species of Listeria, and use antibodies that signal its presence. The researchers in this study are using heat shock proteins, which the body produces in response to stress, to detect Listeria monocytogenes, the deadliest of the Listeria bacteria. Their tests show that the new biosensor has a microbe capture rate up to 83 percent higher than tests using antibodies. Their study appears in the current issue of the American Chemical Society (ACS)'s Analytical Chemistry journal. The article can be viewed online at the link below. The original article may still be available at www.nanowerk.com/news/newsid=10218.php As tagged by Meridian Institute: Health And Medical: Devices, Diseases Implications: Human Enhancement, Governance Nanomaterials: Metal Nanoparticle Regions: North America Stakeholders: Government, Academia Related Forums: Health and Medical Governance print format	NDN Home Subscribe Manage Subscription Search News Archives Nanotechnology Quintuples Heating Capacity of Solar Water Heaters -- Renewable Energy Magazine (9/1/2010) Researchers at the University of Rio de Janeiro (UFRJ), Brazil, have developed a solar heating system that uses nanotechnology to heat water to five times the temperature of a conventional system, while also permitting the collector surface area to retain up to 98 percent of heat from solar radiation. [More] Pakistan's Science Minister Attacks Funding Cuts -- SciDev.Net (9/1/2010) The Pakistan government has cuts its funds for the Pakistan Ministry of Science and Technology's 2010-2011 budget by almost half, causing the science minister, Muhammad Azam Khan Swati, to criticize his own government. [More] Nanotechnology: Small wonders -- Nature (9/1/2010) This article takes an in-depth look at the United States National Nanotechnology Initiative (NNI)'s first 10 years - to find out where the money went and what the initiative plans to do next. [More] Nanotech on Farmers' Fields -- Silicon Nutrition (8/31/2010) A plant nutrition study that addresses nano-sized plant nutrients is now available from the Landbouwkundige Uitgeverij G.C. van den Berg (Veenendaal, The Netherlands). [More] More News... Learn how to include these headlines on your own website by clicking here. Please email us if you require text-only versions of the daily emails.