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Volume 12
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10.3390/bios12040233
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Article

A Novel Full-length IgG Recombinant Antibody Highly Specific to Clothianidin and Its Application in Immunochromatographic Assay

by
Yunyun Chang
1,
Yang Chen
1,
Shasha Jiao
1,
Xinying Lu
1,
Yihua Fang
1,
Yihua Liu
1,2,*,
Ying Zhao
1,
Xiuping Zhan
3,
Guonian Zhu
1 and
Yirong Guo
1,*
1
Institute of Pesticide and Environmental Toxicology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, China
2
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
3
Shanghai Agricultural Technology Extension Service Center, Shanghai 201103, China
*
Authors to whom correspondence should be addressed.
Biosensors 2022, 12(4), 233; https://doi.org/10.3390/bios12040233
Submission received: 19 March 2022 / Revised: 4 April 2022 / Accepted: 10 April 2022 / Published: 11 April 2022
(This article belongs to the Special Issue Immunosensors and Immunoassays for Environmental, Agricultural and Food Safety Applications)
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Abstract

The toxicity of clothianidin to non-target organisms has gradually attracted world-wide attention. It is essential to develop reliable methods for the on-site detection of clothianidin residue. In this study, analogue-based heterologous ic-ELISAs were designed to rapidly screen desirable hybridomas, which could be used for the construction of recombinant antibodies (RAbs) against clothianidin. Based on the antibody variable region genes, two full-length IgG RAbs (1F7-RAb and 5C3-RAb) were produced by the mammalian cell expression system. The performance of the two RAbs was characterized and compared by heterologous ic-ELISAs and non-competitive surface plasmon resonance (SPR) assays. Using heterologous ic-ELISAs, the 1F7-RAb exhibited highly specific and sensitive recognition to clothianidin with an IC50 of 4.62 μg/L, whereas the 5C3-RAb could bind to both clothianidin and dinotefuran. The results of the non-competitive SPR assay further verified that the 1F7-RAb had a higher specificity and affinity to clothianidin than the 5C3-RAb. Finally, a gold immunochromatographic assay based on the novel antibody, 1F7-RAb, was developed for rapid detection of clothianidin with high sensitivity (visual detection limit of 2.5 μg/L), specificity, and good reproducibility, which can be used as an effective supervision tool for clothianidin residue in agricultural and environmental samples.
Keywords: clothianidin; heterologous ic-ELISAs; recombinant full-length IgG; non-competitive surface plasmon resonance assay; gold immunochromatographic assay clothianidin; heterologous ic-ELISAs; recombinant full-length IgG; non-competitive surface plasmon resonance assay; gold immunochromatographic assay

Share and Cite

MDPI and ACS Style

Chang, Y.; Chen, Y.; Jiao, S.; Lu, X.; Fang, Y.; Liu, Y.; Zhao, Y.; Zhan, X.; Zhu, G.; Guo, Y. A Novel Full-length IgG Recombinant Antibody Highly Specific to Clothianidin and Its Application in Immunochromatographic Assay. Biosensors 2022, 12, 233. https://doi.org/10.3390/bios12040233

AMA Style

Chang Y, Chen Y, Jiao S, Lu X, Fang Y, Liu Y, Zhao Y, Zhan X, Zhu G, Guo Y. A Novel Full-length IgG Recombinant Antibody Highly Specific to Clothianidin and Its Application in Immunochromatographic Assay. Biosensors. 2022; 12(4):233. https://doi.org/10.3390/bios12040233

Chicago/Turabian Style

Chang, Yunyun, Yang Chen, Shasha Jiao, Xinying Lu, Yihua Fang, Yihua Liu, Ying Zhao, Xiuping Zhan, Guonian Zhu, and Yirong Guo. 2022. "A Novel Full-length IgG Recombinant Antibody Highly Specific to Clothianidin and Its Application in Immunochromatographic Assay" Biosensors 12, no. 4: 233. https://doi.org/10.3390/bios12040233

APA Style

Chang, Y., Chen, Y., Jiao, S., Lu, X., Fang, Y., Liu, Y., Zhao, Y., Zhan, X., Zhu, G., & Guo, Y. (2022). A Novel Full-length IgG Recombinant Antibody Highly Specific to Clothianidin and Its Application in Immunochromatographic Assay. Biosensors, 12(4), 233. https://doi.org/10.3390/bios12040233

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