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Therefore, to improve the current ordinary separation and collection method, we report herein a strategy of magnetism-resolved separation and fluorescence quantification for near-simultaneous detection of multiple pathogens, followed by the direct antimicrobial susceptibility testing (AST). To accomplish this strategy, we utilized aptamer-modified fluorescent-magnetic multifunctional nanoprobes (apt-FMNPs). FMNPs with intriguing different magnetic responses and excellent fluorescence quality were first self-assembled based on metal coordination interaction using (3-mercaptopropyl) trimethoxysilane, magnetic \u03b3-Fe2O3, and fluorescent quantum dots as matrix components. Then, aptamers, which specific to target pathogens of Escherichia coli O157:H7 (E. coli) and Salmonella typhimurium (S. typ), were conjugated with FMNPs to yield apt-FMNPs nanoprobes for multiple pathogens assay. Based on the discrepant magnetic response of pathogen@nanoprobes complex under the identical external magnetic field, the model bacteria were fished out by magnetic adsorption at different time points and subjected to fluorescence quantification with good linear ranges and detection limits within 1h. Multiple pathogens spiked in real samples were also effectively detected by the apt-FMNPs and sequentially fished out for AST assay, which showed similar results to that for pure pathogens. The apt-FMNPs-based strategy of near-simultaneous detection of multiple pathogens shows promise for the potential application in the diagnosis and treatment of pathogen-related infectious diseases.<\/jats:p>","DOI":"10.1021\/acs.analchem.8b02572","type":"journal-article","created":{"date-parts":[[2018,7,12]],"date-time":"2018-07-12T18:38:12Z","timestamp":1531420692000},"page":"9621-9628","source":"Crossref","is-referenced-by-count":71,"title":["Magnetism-Resolved Separation and Fluorescence Quantification\nfor Near-Simultaneous Detection of Multiple Pathogens"],"prefix":"10.1021","volume":"90","author":[{"given":"Linyao","family":"Li","sequence":"first","affiliation":[{"name":"Southwest University , , , ,","place":["Chongqing, People\u2019s Republic\nof China, 400715"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qingjin","family":"Li","sequence":"additional","affiliation":[{"name":"Southwest University , , , ,","place":["Chongqing, People\u2019s Republic\nof China, 400715"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyi","family":"Liao","sequence":"additional","affiliation":[{"name":"Southwest University , , , ,","place":["Chongqing, People\u2019s Republic\nof China, 400715"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Sun","sequence":"additional","affiliation":[{"name":"Southwest University , , , ,","place":["Chongqing, People\u2019s Republic\nof China, 400715"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Quansheng","family":"Cheng","sequence":"additional","affiliation":[{"name":"Southwest University , , , ,","place":["Chongqing, People\u2019s Republic\nof China, 400715"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7716-9216","authenticated-orcid":true,"given":"Yang","family":"Song","sequence":"additional","affiliation":[{"name":"Southwest University , , , ,","place":["Chongqing, People\u2019s Republic\nof China, 400715"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4026-090X","authenticated-orcid":true,"given":"Erqun","family":"Song","sequence":"additional","affiliation":[{"name":"Southwest University , , , ,","place":["Chongqing, People\u2019s Republic\nof China, 400715"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8066-1524","authenticated-orcid":true,"given":"Weihong","family":"Tan","sequence":"additional","affiliation":[{"name":"Hunan University , , ,","place":["Changsha, People\u2019s Republic of China, 410082"]},{"name":"University of Florida , , , ,","place":["Gainesville, Florida, United States, 32611-7200"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2018,7,12]]},"reference":[{"key":"2026081803281806400_cit1","doi-asserted-by":"publisher","first-page":"204","DOI":"10.4315\/0362-028X-59.2.204","volume":"59","author":"Beuchat","year":"1996","journal-title":"J. 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