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The ZIF\u20108@CdSe molecularly imprinted ECL sensor combines the high sensitivity of ECL and the high selectivity of molecular imprinting to realize the sensitive and specific detection of estriol. CdSe QDs and gold nanoparticles were encapsulated within ZIF\u20108 to obtain the ZIF\u20108@CdSe QDs\/GNP (ZIF@CdSe\/GNP) composite. Subsequently, the GNPs were further loaded on the surface of this composite to obtain the GNP\/ZIF@CdSe\/GNP composite. <jats:sc>l<\/jats:sc>\u2010Cysteine was used to immobilize the GNP\/ZIF@CdSe\/GNP composite on the surface of a gold electrode to obtain the GNP\/ZIF@CdSe\/GNP\u2010modified gold electrode. A molecularly imprinted polymer (MIP) film was prepared on the surface of the modified electrode by electropolymerization with <jats:italic>o<\/jats:italic>\u2010phenylenediamine as the functional monomer and estriol as the template molecule. After elution, estriol could be specifically recognized by the cavities. The readsorption of estriol by the MIP can prevent the coreactant from reaching the electrode surface through the cavities, thereby weakening ECL. A good linear relationship existed between the \u2206ECL and lg C of estriol concentrations of 1\u2009\u00d7\u200910<jats:sup>\u221214<\/jats:sup> to 1\u2009\u00d7\u200910<jats:sup>\u22129<\/jats:sup>\u2009mol\u00b7L<jats:sup>\u22121<\/jats:sup>. The detection limit was as low as 8.9\u2009\u00d7\u200910<jats:sup>\u221216<\/jats:sup>\u2009mol\u00b7L<jats:sup>\u22121<\/jats:sup>. The sensor was applied in the determination of estriol in serum samples with a recovery of 97.0\u2013102%.<\/jats:p>","DOI":"10.1002\/bio.4264","type":"journal-article","created":{"date-parts":[[2022,4,26]],"date-time":"2022-04-26T07:08:30Z","timestamp":1650956910000},"page":"1109-1119","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Molecularly imprinted electrochemiluminescence sensor based on ZIF\u20108 doped with CdSe quantum dots for the detection of trace estriol"],"prefix":"10.1002","volume":"37","author":[{"given":"Yongjuan","family":"Meng","sequence":"first","affiliation":[{"name":"College of Chemistry and Bioengineering Guilin University of Technology  Guilin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinling","family":"Pu","sequence":"additional","affiliation":[{"name":"College of Chemistry and Bioengineering Guilin University of Technology  Guilin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiamei","family":"Gan","sequence":"additional","affiliation":[{"name":"College of Chemistry and Bioengineering Guilin University of Technology  Guilin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8920-3223","authenticated-orcid":false,"given":"Jianping","family":"Li","sequence":"additional","affiliation":[{"name":"College of Chemistry and Bioengineering Guilin University of Technology  Guilin China"},{"name":"College of Environmental Science and Engineering Guilin University of Technology  Guilin China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,5,4]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"365","volume":"2","author":"Charithra M. 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