Paper Title:
Binding Inhibition Assay Using Fiber-Optic Based Biosensor for the Detection of Foodborne Pathogens
  Abstract

Frequent outbreaks of foodborne illness have been increasing the need for simple, rapid and sensitive methods to detect foodborne pathogens. Conventional methods for pathogen detection and identification are labor-intensive and take days to complete. Some immunological rapid assays are developed, but these assays still require prolonged enrichment steps. Biosensors have shown great potential for the rapid detection of foodborne pathogens. Among the biosensors, fiber-optic methods have much potential because they can be very sensitive and simple to operate. Fiber-optic biosensors typically use a light transmittable, tapered fiber to send excitation laser light to the detection surface and receive emitted fluorescent light. The fluorescent light excited by an evanescent wave generated by the laser is quantitatively related to fluorophor-labeled biomolecules immobilized on the fiber surface. A portable and automated fiber-optic biosensor, RAPTOR (Research International, Monroe, WA), was used to detect Salmonella enteritidis in food samples. A binding inhibition assay based on the biosensor was developed to detect the bacteria in hot dog samples. The biosensor and the binding inhibition assay could detect 104 cfu/ml of bacteria in less than 10 min of assay time.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
1145-1150
DOI
10.4028/www.scientific.net/KEM.321-323.1145
Citation
M. T. Morgan, G. Y. Kim, D. Ess, A. Kothapalli, B. K. Hahm, A. Bhunia, "Binding Inhibition Assay Using Fiber-Optic Based Biosensor for the Detection of Foodborne Pathogens", Key Engineering Materials, Vols. 321-323, pp. 1145-1150, 2006
Online since
October 2006
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Price
$32.00
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