Sensitive and rapid detection of bisphenol A using signal amplification nanoparticles loaded with anti-bisphenol A monoclonal antibody

Autor: Sumei Ling, Aidi Xu, Menghan Sun, Xiaoli Li, Yongming Huang, Yang Xu, Jianli Huang, Tingting Xie, Shihua Wang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Food Chemistry: X, Vol 24, Iss , Pp 101903- (2024)
Druh dokumentu: article
ISSN: 2590-1575
DOI: 10.1016/j.fochx.2024.101903
Popis: Bisphenol A has been reported to be a ubiquitous contaminant, and exposure to this compound can lead to adverse effects in human health. In the study, monoclonal antibody against BPA (anti-BPA mAb) with high affinity (3.74 × 109 L/mol) secreted by cell line 2E3 was successfully screened. Inspired by the signal amplification of nanoparticles, anti-BPA mAbs were labeled with nano-materials including colloidal gold (AuNP) and gold nanoflowers (AuNF) for preparation of immunoprobes and AuNP-/AuNF-based test strips. The developed AuNP- and AuNF-based test strips achieved the rapid and sensitive detection of BPA within 10 min, with the limit of detection (LOD) of 25 μg/mL and 3.125 μg/mL, respectively. The detection result in BPA spiked samples measured by the proposed methods was consistent with that detected by LC-MS method. The preparation process of as-prepared test strip is time-saving and considered as ideal candidates method for rapid screening BPA in real samples.
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