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It is reported that the change of viscosity and an imbalance of H2S production in the mitochondria are both associated with overexpression of amyloid betapeptide (A\u03b2), which is thought to play a central role in the pathogenesis of Alzheimer\u2019s disease (AD). However, to our best knowledge, no fluorescent probe is found for dual detection of mitochondrial viscosity and H2S. Herein, a dual-response fluorescent probe (Mito-VS) is designed and synthesized to monitor the level of viscosity and H2S, respectively. Mito-VS itself is nonfluorescent due to a free intramolecular rotation between dimethylaniline and pyridine. After the increase of viscosity, the rotation is prohibited and an intense red fluorescence is released. Upon the addition of H2S, the probe can react with H2S to form compound 3 and a strong green fluorescence can be observed. Moreover, the probe possesses a good mitochondrion-targeting ability and is applied for imaging the change of viscosity on the red channel and visualizing the variation of exogenous and endogenous H2S concentration on the green channel in mitochondria. Most importantly, the probe is capable of studying the cross-talk influence of viscosity and H2S in mitochondria, which is very beneficial for knowing the pathogenesis of AD.<\/jats:p>","DOI":"10.1021\/acs.analchem.8b02068","type":"journal-article","created":{"date-parts":[[2018,7,5]],"date-time":"2018-07-05T03:29:29Z","timestamp":1530761369000},"page":"9418-9425","source":"Crossref","is-referenced-by-count":221,"title":["A Dual-Response Fluorescent Probe for the Detection\nof Viscosity and H2S and Its Application in Studying Their\nCross-Talk Influence in Mitochondria"],"prefix":"10.1021","volume":"90","author":[{"given":"Song-Jiao","family":"Li","sequence":"first","affiliation":[{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7206-2564","authenticated-orcid":true,"given":"Yong-Fei","family":"Li","sequence":"additional","affiliation":[{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]},{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong-Wen","family":"Liu","sequence":"additional","affiliation":[{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dong-Ye","family":"Zhou","sequence":"additional","affiliation":[{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wen-Li","family":"Jiang","sequence":"additional","affiliation":[{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"Ou-Yang","sequence":"additional","affiliation":[{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8382-5264","authenticated-orcid":true,"given":"Chun-Yan","family":"Li","sequence":"additional","affiliation":[{"name":"Xiangtan University , , , ,","place":["Xiangtan, PR China, 411105"]},{"name":"Hunan University , , , ,","place":["Changsha, PR China, 410082"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2018,7,5]]},"reference":[{"key":"2026081803280449700_cit1","doi-asserted-by":"publisher","first-page":"69","DOI":"10.1038\/nchem.120","volume":"1","author":"Kuimova","year":"2009","journal-title":"Nat. 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