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Quick and convenient construction of lambda-cyhalothrin antigen for the generation of specific antibody.
- Source :
-
Analytical Biochemistry . May2020, Vol. 597, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- Lambda-cyhalothrin is a pyrethroid widely used in crop, fruit and vegetable production, but has potential health threats to human. Immunoassay is a cheap, rapid and facile method to detect lambda-cyhalothrin, yet wide application of this method still requires improvement in the construction of antigen. In this study, we developed a one-step lambda-cyhalothrin hapten synthesis that transformed the cyanide group in lambda-cyhalothrin to amide. Complete antigen was assembled by coupling the amide with succinic-anhydride-activated carrier proteins, and corresponding polyclonal antibodies were generated using Balb/c mice. Using antibody generated by the method in this paper, the competitive ELISA demonstrated the lowest detection limit of 3.772 μg/L for lambda-cyhalothrin, and no significant cross-reactivity for other pyrethroid pesticides was observed. All the results suggested we have established a more efficient technique of generating lambda-cyhalothrin antibody. Furthermore, since the activated proteins used in this study are highly controllable, we believe these proteins could potentially be the prototype of a series of standardized carrier proteins for the synthesis of complete antigens. Image 1 • A safe and high-yielding one-step lambda-cyhalothrin hapten synthesis strategy was developed. • A novel succinic anhydride activating technology was developed which provided the carrier proteins with more reactive sites. • The carrier protein activation method has provided a new solution to the poor-conjugation problems. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00032697
- Volume :
- 597
- Database :
- Academic Search Index
- Journal :
- Analytical Biochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 142669240
- Full Text :
- https://doi.org/10.1016/j.ab.2020.113669