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Sensors 2008, 8(12), 7571-7580; doi:10.3390/s8127571
Article

Sensitive Aflatoxin B1 Determination Using a Magnetic Particles-Based Enzyme-Linked Immunosorbent Assay

1
 and
1,2,*
Received: 6 October 2008 / Revised: 28 October 2008 / Accepted: 20 November 2008 / Published: 26 November 2008
(This article belongs to the Section Physical Sensors)
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Abstract

A magnetic particle-based enzyme-liked immunosorbent assay (mp-ELISA) has been developed as new an alternative immunoassay for Aflatoxin B1 determination. The method is based on conventional competitive ELISA whereby the anti-Aflatoxin B1 antibody is immobilized on the magnetic particles’ surface. The influence of the antibody type as well as antibody immobilization on the magnetic beads surface was investigated in detail. Also, optimum values for the general parameters of the method (e.g. tracer concentration, type of antibody, and incubation time) were established. Finally, a sensitive immunoassay method (mp-ELISA) was performed for Aflatoxin B1 determination at ppt level (LOD = 1 ppt Aflatoxin B1).
Keywords: Magnetic particle-based enzyme-liked immunosorbent assay (mp-ELISA); Aflatoxin B1; immobilization; antibody; sensitivity Magnetic particle-based enzyme-liked immunosorbent assay (mp-ELISA); Aflatoxin B1; immobilization; antibody; sensitivity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Tudorache, M.; Bala, C. Sensitive Aflatoxin B1 Determination Using a Magnetic Particles-Based Enzyme-Linked Immunosorbent Assay. Sensors 2008, 8, 7571-7580.

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