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Herein, a dual-modal split-type immunosensor was constructed to detect microcystin-LR (MC-LR), based on the photocurrent change of CdS\/ZnO hollow nanorod arrays (HNRs) and the blue shift of the surface plasmon resonance peak from Au nanobipyramids@Ag. By using mesoporous silica nanospheres as the carrier to immobilize secondary antibody and DNA primer, a hybridization chain reaction was adopted to capture alkaline phosphatase, while its catalytic reaction product, ascorbic acid, exhibited dual functions. The detailed mechanism was investigated, showing that ascorbic acid can not only act as the electron donor to capture the holes in CdS\/ZnO-HNRs, leading to the increase photocurrent, but also as the reductant to form silver shells on Au nanobipyramids, generating multiply vivid color variations and blue shifts. Compared with the traditional photoelectrochemical immunosensor or colorimetric method for MC-LR, a more accurate and reliable result can be obtained, due to different mechanisms and independent signal transduction. Therefore, this work can not only propose a new dual-modal immunosensor for MC-LR detection but also provide innovative inspiration for constructing sensitive, accurate, and visual analysis for toxins.<\/jats:p>","DOI":"10.1021\/acs.analchem.8b02546","type":"journal-article","created":{"date-parts":[[2018,7,9]],"date-time":"2018-07-09T12:42:35Z","timestamp":1531140155000},"page":"9606-9613","source":"Crossref","is-referenced-by-count":161,"title":["Dual-Modal Split-Type Immunosensor for Sensitive Detection\nof Microcystin-LR: Enzyme-Induced Photoelectrochemistry and Colorimetry"],"prefix":"10.1021","volume":"90","author":[{"given":"Jie","family":"Wei","sequence":"first","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]},{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weidan","family":"Chang","sequence":"additional","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]},{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aori","family":"Qileng","sequence":"additional","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weipeng","family":"Liu","sequence":"additional","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yue","family":"Zhang","sequence":"additional","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiya","family":"Rong","sequence":"additional","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1697-1747","authenticated-orcid":true,"given":"Hongtao","family":"Lei","sequence":"additional","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1130-4945","authenticated-orcid":true,"given":"Yingju","family":"Liu","sequence":"additional","affiliation":[{"name":"South China Agricultural University , , ,","place":["Guangzhou, China, 510642"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2018,7,9]]},"reference":[{"key":"2026081803204522600_cit1","doi-asserted-by":"publisher","first-page":"4841","DOI":"10.1021\/acs.est.6b05939","volume":"51","author":"Ceballos-Laita","year":"2017","journal-title":"Environ. 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