Navigation Links
Technology uses live cells to detect food-borne pathogens, toxins
Date:2/29/2008

WEST LAFAYETTE, Ind. - Researchers have developed a new technology that can simultaneously screen thousands of samples of food or water for several dangerous food-borne pathogens in one to two hours.

The technique, which has potential biosecurity and food safety applications, also can estimate the amount of microbes present and whether they pose an active health risk. This could help neutralize potential threats and improve food processing techniques, said Arun Bhunia, a professor of food science at Purdue University.

"For food safety and biosecurity purposes, you need a quick test - a first line of defense - to be able to tell if there is something pathogenic in the food or water," Bhunia said.

The technology utilizes live mammalian cells that release a measurable amount of a signaling chemical when harmed. Optical equipment and computer software can then analyze this quantity to estimate the amount of harmful microbes present, Bhunia said.

"This is very important," he said. "With many toxins or pathogens, there is an effective dose or threshold you must pass before you have to worry. By providing information on quantity, this technology gives you a higher degree of confidence in the test and what steps must be taken to alleviate the problem."

The technology can recognize very small amounts of Listeria monocytogenes, a bacterium that kills one in five infected and is the leading cause of food-borne illness. It also recognizes several species of Bacillus, a non-fatal but common cause of food-poisoning, said Pratik Banerjee, a Purdue researcher and first author of a study detailing the technology that is published in the February issue of the journal Laboratory Investigation.

The cells are suspended in collagen gel, a useful substance for capturing particles of a desired size, and put into small wells within multi-well plates. Each well can test one sample, so tests can be expanded to quickly analyze
'/>"/>

Contact: Douglas M. Main
dmain@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. M2SYS Introduces Revolutionary Biometric Artificial Intelligence Technology to Significantly Reduce Fingerprint Software False Reject Rates
2. Bacteria and nanofilters -- the future of clean water technology
3. Astronomy technology brings nanoparticle probes into sharper focus
4. Strategy for nanotechnology-related environmental, health and safety research
5. New technology sharpens X-ray vision
6. Iridescence workshop promotes natures nanotechnology
7. Department of Energy putting power in the hands of consumers through technology
8. Bangladesh to dramatically expand technology that doubles efficiency of urea fertilizer use
9. Cheaper drugs now closer to realization with new DropArray technology
10. New report finds great potential for Swedish medical technology
11. Breakthrough technology observes synapse in real time, supporting theory of vesicular recycling
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Technology uses live cells to detect food-borne pathogens, toxins
(Date:9/30/2014)... captured the popular attention of both children and aquarium ... sold as dehydrated eggs, these tiny brine shrimp readily ... tank of salt water. , Physicists, though, are ... shrimp vertically migrate in large groups in response to ... night and retreating deeper during the day. , Two ...
(Date:9/30/2014)... Prenatal exposure to tetrachloroethylene (PCE) in drinking water ... abruption, according to a new study led by ... , The study, published in the journal ... 1,019 unexposed pregnancies among 1,766 women in Cape ... late 1960s to the early 1980s by the ...
(Date:9/30/2014)... runoff in Hawaii is causing tumors in endangered sea ... published Tuesday in the peer-reviewed open-access journal PeerJ ... in algae that the turtles eat, promoting the formation ... organs. , Scientists at Duke University, the University of ... conducted the study to better understand the causes ...
Breaking Biology News(10 mins):Laser-guided sea monkeys show how zooplankton migrations may affect global ocean currents 2Contaminated water linked to pregnancy complications, BU study finds 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3
... Autism Speaks applauds the consensus statement and recommendations ... disorders in children with autism spectrum disorders (ASD) released ... advancing physician awareness of unique challenges in the medical ... see the publication of these consensus recommendations. Autism Speaks, ...
... nerves are the likely origin of the Devil Facial Tumour ... an international team of scientists has discovered. Devil ... only Tasmanian devils and was first reported in 1996. It ... disease is characterised by large tumours, mostly on the face ...
... have new insight into the sex lives of the much-maligned ... deaths, according to a report published online on December 31st ... finding a partner of the right species type, male and ... harmony. Those tones are produced and varied based on the ...
Cached Biology News:Pediatrics GI recommendations -- first step to guidelines for children with autism 2Pediatrics GI recommendations -- first step to guidelines for children with autism 3Nervous culprit found for Tassie devil facial tumor disease 2To a mosquito, matchmaking means 'singing' in perfect harmony 2
(Date:10/2/2014)... (PRWEB) October 02, 2014 Protea ... AG jointly announced today an update from their ... 3D InSight™ microtissues. In August 2014, Protea received ... scientific team for onsite training on the handling ... developed workflows for processing the 3D microtissues for ...
(Date:10/2/2014)... Wayne, NJ (PRWEB) October 02, 2014 At ... squeezed, Bel-Art Products has introduced a new kind ... New to market is the Scienceware® Squeeze Rite™ Wash ... the dip tube position within the bottle reduces the waste ... complete dispensing of those liquids. , “Easier to squeeze when ...
(Date:10/2/2014)... 2, 2014  CSSi ( www.CSSiEnroll.com ), the ... research industry, is pleased to announce its participation ... of October.  President Chris Trizna will ... in Clinical Trials New England conference sponsored by ... the annual Site Solutions Summit sponsored by the ...
(Date:10/2/2014)... and BRIDGEWATER, N.J. , Oct. 2, ... a leader in synthetic biology, and Amneal ... manufacturer by volume in the U.S., today announced ... (ECC) for a target active pharmaceutical ingredient (API).  ... of the collaboration is to develop a consistent, ...
Breaking Biology Technology:Protea Biosciences and InSphero AG Successful in Mass Spectrometry Imaging of 3D Microtissues 2Protea Biosciences and InSphero AG Successful in Mass Spectrometry Imaging of 3D Microtissues 3Protea Biosciences and InSphero AG Successful in Mass Spectrometry Imaging of 3D Microtissues 4New Wash Bottle Reduces Waste of Reagents, Solutions, and Other Liquids 2Patient Recruitment Expert CSSi to be Featured at Upcoming Industry Events 2Patient Recruitment Expert CSSi to be Featured at Upcoming Industry Events 3Intrexon and Amneal Expand Relationship with Second Product Collaboration 2Intrexon and Amneal Expand Relationship with Second Product Collaboration 3
... Aug. 28 Medivation, Inc.,(Nasdaq: MDVN ) today ... will present at the following conferences:, -- BioCentury,s ... 9:00 a.m. Eastern Time at the Millennium Broadway Hotel ... Conference on Wednesday, September 24,at 4:30 p.m. Eastern Time ...
... Exclusion of Venous Thromboembolism-, LEXINGTON, Mass., Aug. ... US Food and Drug Administration (FDA) has,granted 510(k) ... HemosIL D-Dimer,assay to exclude venous thromboembolism (VTE) in ... embolism (PE), when used in,conjunction with a clinical ...
... (ESA) has appointed the UK,s National Physical Laboratory (NPL) ... will lead a consortium to identify the next generation ... in future space missions. , "Advances in nanotechnology are ... Research Scientist in the nanomaterials group at NPL, who ...
Cached Biology Technology:Medivation Announces Participation in Upcoming Conferences 2Instrumentation Laboratory Receives FDA Clearance to Expand the Intended Use of HemosIL(R) D-Dimer Assay 2
Melanoma Antigen, Family C, 1 (MAGEC1) Rabbit anti-Human Polyclonal Antibody Immunogen: Synthetic peptide - KLH conjugated Family: New Recommended Storage: Long term: -20C; Short term: +4...
X box-binding protein 1...
Mouse monoclonal [AE3] to Cytokeratin 1 - 8, prediluted ( Abpromise for all tested applications). Antigen: Tissue / cell preparation - Human epidermal cells. Entrez GeneID: 140807 Swiss P...
Mouse HAI-1 Ectodomain MAb (Clone 199732)...
Biology Products: