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Dual sensing of glutathione and acidic pH values by using MnO2 nanosheets and 3-acetyl-7-hydroxy-2H-chromen-2-one as a fluorescent pH probe

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机构: [1]The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China [2]The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, People’s Republic of China [3]College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, People’s Republic of China [4]Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, People’s Republic of China [5]The Liver Center of Fujian Province, Fujian Medical University, Fuzhou 350025, People’s Republic of China
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关键词: pH-responsive fluorescent dye Multifunctional nanoprobe Logical analysis Inner filter effect Phenol group Intramolecular charge transfer

摘要:
A multifunctional nanoprobe is described for dual sensing of acidic pH values and glutathione (GSH) by combining the pH-responsive fluorescent probe 3-acetyl-7-hydroxy-2H-chromen-2-one (AHC) and MnO2 nanosheets. The fluorescence of the MnO2/AHC composite is weak due to an inner filter effect. If, however, the MnO2 nanosheets are reductively decomposed by GSH, the blue fluorescence of the pH probe AHC (with excitation/emission maximum at 417/456nm) will be restored. The MnO2 nanosheets also are decomposed by acidic pH values, and the fluorescence of AHC is decreased. According to absorbance and fluorescence signal changes, the pH and GSH induced responses can be easily distinguished. Thus, the nanoprobe can be used for logical analysis of acidic pH values and GSH. The nanoprobe works in the pH range from 4 to 7, and GSH can be determined in the concentration range from 0.5 to 200 mu M.

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出版当年[2018]版:
大类 | 2 区 化学
小类 | 2 区 分析化学
最新[2023]版:
大类 | 2 区 化学
小类 | 2 区 分析化学
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出版当年[2017]版:
Q1 CHEMISTRY, ANALYTICAL
最新[2023]版:
Q1 CHEMISTRY, ANALYTICAL

影响因子: 最新[2023版] 最新五年平均 出版当年[2017版] 出版当年五年平均 出版前一年[2016版] 出版后一年[2018版]

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第一作者机构: [1]The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China
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通讯机构: [1]The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China [2]The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, People’s Republic of China [5]The Liver Center of Fujian Province, Fujian Medical University, Fuzhou 350025, People’s Republic of China
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