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

Sensors

Madalina Tudorache¹ 

[1] Laboratory of Quality Control and Process Monitoring and University of Bucharest, 4-12 Regina Elisabeta, 030018 Bucharest, Romania; E-mail:

关键词: Magnetic particle-based enzyme-liked immunosorbent assay (mp-ELISA);    Aflatoxin B1;    immobilization;    antibody;    sensitivity;   

DOI  :  10.3390/s8127571

来源: mdpi

【 摘 要 】

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).

【 授权许可】

CC BY   
© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.