Paper Title:
Thermalstability of Polyclonal Antibody to Salmonella typhimurium on a Magnetostrictive Sensor Platform
  Abstract

Thermalstability of polyclonal antibodies to Salmonella typhimurium was investigated by studying the effect of temperature on the binding activity to Salmonella typhimurium using a magnetostrictive platform. Antibodies were immobilized using the Langmuir-Blodgett (LB) technique. Then sensors were stored at temperatures of, 25°C (room temperature), 45°C and 65°C, respectively, and then the ability of these sensors to detect S. typhimurium was tested at a predetermined schedule. Changes in the fundamental resonance frequency of sensors after exposure to 1 ml of 1×109cfu/ml of S. typhimurium were recorded over the testing period. The shift in resonance frequency was attributed to the binding of bacteria to antibody immobilized sensor. The results showed that at each temperature, the binding ability of the antibody to S. typhimurium decreased gradually over the testing period, and the higher the temperature, the lower the longevity of the polyclonal antibody. The longevity of polyclonal antibody on the magnetostrictive sensor platform was about 30, 8 and 5 days at room temperature (25°C), 45°C and 65°C, respectively.

  Info
Periodical
Advanced Materials Research (Volumes 284-286)
Chapter
Biomaterials
Edited by
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
Pages
1724-1727
DOI
10.4028/www.scientific.net/AMR.284-286.1724
Citation
J. Hu, R. Guntupalli, R. S. Lakshmanan, B. Chin, "Thermalstability of Polyclonal Antibody to Salmonella typhimurium on a Magnetostrictive Sensor Platform", Advanced Materials Research, Vols. 284-286, pp. 1724-1727, 2011
Online since
July 2011
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Price
$32.00
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