PMID- 34379138 OWN - NLM STAT- MEDLINE DCOM- 20220217 LR - 20220217 IS - 1432-0800 (Electronic) IS - 0007-4861 (Linking) VI - 108 IP - 2 DP - 2022 Feb TI - Ultrasensitive and Highly Selective Detection of Bisphenol a Using Core-Shell Magnetic Molecularly Imprinted Quantum Dots Electrochemiluminescent Probe. PG - 379-385 LID - 10.1007/s00128-021-03351-z [doi] AB - The main aim of this work was to develop a magnetic molecularly imprinted polymer (MMIP)-based quantum dots electrochemiluminescent (ECL) probe for the ultrasensitive and highly selective detection of bisphenol A (BPA). The prepared core-shell Fe(3)O(4)@SiO(2) exhibited superparamagnetic properties, making them easy to separate. The MIP was fabricated by the self-polymerization of dopamine on the surface of amine-terminated Fe(3)O(4)@SiO(2) (Fe(3)O(4)@SiO(2)-NH(2)) magnetic nanoparticles and doped with quantum dots (QDs) to form an ECL system. The ECL intensity decrease with the concentration of BPA increased, due to the BPA molecules occupied molecularly imprinted sites and blocked the strong ECL emission of QDs. The prepared ECL sensor performed satisfactorily in the detection of BPA, with a wide linear range from 10(- 4) to 10(- 9) mol L(- 1) and a low detection limit of 3.4 x 10(- 10) mol L(- 1) (S/N = 3). The recoveries of BPA achieved were in the range 96%-107% in the detection of actual water samples. The proposed ECL sensor displayed high sensitivity and stability, and may provide an approach for determining other important analytes. CI - (c) 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Shi, Jianjun AU - Shi J AD - School of Chemical Engineering, Anhui University of Science and Technology, 232001, Huainan, China. aust_jjshi@163.com. AD - Institute of Environment-friendly Materials and Occupational Health, Anhui University of Science and Technology, 241003, Wuhu, China. aust_jjshi@163.com. FAU - Zhang, Xinyi AU - Zhang X AD - School of Chemical Engineering, Anhui University of Science and Technology, 232001, Huainan, China. AD - Institute of Environment-friendly Materials and Occupational Health, Anhui University of Science and Technology, 241003, Wuhu, China. FAU - Zhang, Qianqian AU - Zhang Q AD - School of Chemical Engineering, Anhui University of Science and Technology, 232001, Huainan, China. FAU - Yang, Ping AU - Yang P AD - School of Chemical Engineering, Anhui University of Science and Technology, 232001, Huainan, China. LA - eng GR - 21505001/National Natural Science Foundation of China/ GR - 201903a06020003/National Major Science and Technology Projects of China/ PT - Journal Article DEP - 20210811 PL - United States TA - Bull Environ Contam Toxicol JT - Bulletin of environmental contamination and toxicology JID - 0046021 RN - 0 (Benzhydryl Compounds) RN - 0 (Phenols) RN - 7631-86-9 (Silicon Dioxide) RN - MLT3645I99 (bisphenol A) SB - IM MH - Benzhydryl Compounds MH - Magnetic Phenomena MH - *Molecular Imprinting MH - Phenols MH - *Quantum Dots MH - Silicon Dioxide OTO - NOTNLM OT - Bisphenol A OT - Electrochemiluminescent sensor OT - Magnetic core-shell nanoparticles OT - Molecularly imprinted polymer OT - Quantum dots EDAT- 2021/08/12 06:00 MHDA- 2022/02/19 06:00 CRDT- 2021/08/11 12:20 PHST- 2021/03/20 00:00 [received] PHST- 2021/07/24 00:00 [accepted] PHST- 2021/08/12 06:00 [pubmed] PHST- 2022/02/19 06:00 [medline] PHST- 2021/08/11 12:20 [entrez] AID - 10.1007/s00128-021-03351-z [pii] AID - 10.1007/s00128-021-03351-z [doi] PST - ppublish SO - Bull Environ Contam Toxicol. 2022 Feb;108(2):379-385. doi: 10.1007/s00128-021-03351-z. Epub 2021 Aug 11.