Kumar Sandeep, Bhogal Shikha, Kaur Gurpreet, Malik Ashok Kumar, Aulakh Jatinder Singh
Department of Chemistry, Punjabi University, Patiala 147002, Punjab, India.
University Centre for Research and Development, Chandigarh University, Gharuan, Mohali 140413, Punjab, India; Department of Chemistry, Chandigarh University, Gharuan, Mohali 140413, Punjab, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2025 Apr 5;330:125623. doi: 10.1016/j.saa.2024.125623. Epub 2024 Dec 20.
A sensitive and efficient fluorescent sensor based on a magnetic manganese-doped zinc sulfide molecularly imprinted probe (FeO/Mn-ZnS/MIP) was successfully developed for the detection of chlorpyrifos (CPF). The probe combined the advantages of magnetic separation, the fluorescence properties of Mn-ZnS, and the exceptional molecule recognition capabilities of molecularly imprinted polymers. The developed sensor exhibits selective binding to CPF, resulting in a quenching of fluorescence intensity of FeO/Mn-ZnS/MIP by a photo-induced electron transfer mechanism. The sensor demonstrated a detection limit of 0.41 ng/mL within a linear range of 1-50 ng/mL. Further, the probe was effectively utilized to analyze vegetable samples (cabbage, and cauliflower), yielding recoveries of 97.10-102.15 %. The objective of this research is to contribute to the development of a highly effective fluorescence sensing system capable of detecting several dangerous substances, including chlorpyrifos.
一种基于磁性锰掺杂硫化锌分子印迹探针（FeO/Mn-ZnS/MIP）的灵敏高效荧光传感器被成功开发用于检测毒死蜱（CPF）。该探针结合了磁分离、Mn-ZnS的荧光特性以及分子印迹聚合物卓越的分子识别能力等优点。所开发的传感器对CPF表现出选择性结合，通过光诱导电子转移机制导致FeO/Mn-ZnS/MIP的荧光强度猝灭。该传感器在1-50 ng/mL的线性范围内检测限为0.41 ng/mL。此外，该探针被有效地用于分析蔬菜样品（卷心菜和花椰菜），回收率为97.10-102.15%。本研究的目的是为开发一种能够检测包括毒死蜱在内的几种危险物质的高效荧光传感系统做出贡献。
