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Mercaptopropionic (MPA)\u2010capped CdTe QDs serving as both donors and acceptors were successfully synthesized by changing the refluxing time in aqueous solution. CTAB micelles formed in water and minimized the distance between the donors and acceptors significantly by electrostatic interactions, improving FRET efficiency. Several factors that affected the fluorescence spectra of the FRET system were investigated. The prepared FRET system was feasible as an effective fluorescent probe to detect Hg(II) in aqueous solution. At pH\u00a07.0, a linear relationship between the quenched fluorescence intensity of orange\u2010emitting acceptors (QDs<jats:sub>(A)<\/jats:sub>) and Hg(II) concentration was acquired in the range 5\u2013250\u00a0nmol\/L with a detection limit of 1.95\u00a0nmol\/L. The developed method showed excellent analytical performance for Hg(II) with high sensitivity and acceptable selectivity, reproducibility and stability. This finding indicated that the method has a promising potential application for environmental monitoring. This study demonstrated the great promise of QDs for expedient, low\u2010cost and high\u2010sensitivity detection of Hg(II).<\/jats:p>","DOI":"10.1002\/bio.3597","type":"journal-article","created":{"date-parts":[[2019,1,24]],"date-time":"2019-01-24T15:42:30Z","timestamp":1548344550000},"page":"205-211","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["A simple FRET system using two\u2010color CdTe quantum dots assisted by cetyltrimethylammonium bromide and its application to Hg(II) detection"],"prefix":"10.1002","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3502-9615","authenticated-orcid":false,"given":"Jing","family":"Wang","sequence":"first","affiliation":[{"name":"Key Laboratory of Biomedical Functional Materials China Pharmaceutical University  Nanjing China"},{"name":"Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education China Pharmaceutical University  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fengjuan","family":"Song","sequence":"additional","affiliation":[{"name":"Key Laboratory of Biomedical Functional Materials China Pharmaceutical University  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yongling","family":"Ai","sequence":"additional","affiliation":[{"name":"Key Laboratory of Biomedical Functional Materials China Pharmaceutical University  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shanwen","family":"Hu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering Linyi University  Linyi China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhizhou","family":"Huang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Biomedical Functional Materials China Pharmaceutical University  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenying","family":"Zhong","sequence":"additional","affiliation":[{"name":"Key Laboratory of Biomedical Functional Materials China Pharmaceutical University  Nanjing China"},{"name":"Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education China Pharmaceutical University  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,1,24]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_2_7_2_1","DOI":"10.1039\/C4NR03952A"},{"doi-asserted-by":"publisher","key":"e_1_2_7_3_1","DOI":"10.1021\/ja045676z"},{"doi-asserted-by":"publisher","key":"e_1_2_7_4_1","DOI":"10.1039\/B813919A"},{"doi-asserted-by":"publisher","key":"e_1_2_7_5_1","DOI":"10.1021\/ja910988d"},{"doi-asserted-by":"publisher","key":"e_1_2_7_6_1","DOI":"10.1002\/cphc.200500217"},{"doi-asserted-by":"publisher","key":"e_1_2_7_7_1","DOI":"10.1021\/acs.analchem.5b02037"},{"doi-asserted-by":"publisher","key":"e_1_2_7_8_1","DOI":"10.1002\/bio.3177"},{"doi-asserted-by":"publisher","key":"e_1_2_7_9_1","DOI":"10.1002\/bio.3092"},{"doi-asserted-by":"publisher","key":"e_1_2_7_10_1","DOI":"10.1021\/acs.analchem.7b00267"},{"doi-asserted-by":"publisher","key":"e_1_2_7_11_1","DOI":"10.1021\/ac502553u"},{"doi-asserted-by":"publisher","key":"e_1_2_7_12_1","DOI":"10.1002\/bio.3309"},{"doi-asserted-by":"publisher","key":"e_1_2_7_13_1","DOI":"10.1002\/bio.3231"},{"doi-asserted-by":"publisher","key":"e_1_2_7_14_1","DOI":"10.1039\/c2an35888c"},{"doi-asserted-by":"publisher","key":"e_1_2_7_15_1","DOI":"10.1021\/nn901393v"},{"doi-asserted-by":"publisher","key":"e_1_2_7_16_1","DOI":"10.1039\/c1ay05178d"},{"doi-asserted-by":"publisher","key":"e_1_2_7_17_1","DOI":"10.1039\/C5AY00416K"},{"doi-asserted-by":"publisher","key":"e_1_2_7_18_1","DOI":"10.1039\/C5AY01680K"},{"doi-asserted-by":"publisher","key":"e_1_2_7_19_1","DOI":"10.1039\/C6AN00492J"},{"doi-asserted-by":"publisher","key":"e_1_2_7_20_1","DOI":"10.1021\/ac504358q"},{"doi-asserted-by":"publisher","key":"e_1_2_7_21_1","DOI":"10.1021\/nl101052f"},{"key":"e_1_2_7_22_1","first-page":"299,131","author":"Wang B. 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