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Zhao Y, Shen A, Hao X, Li M, Hou L, Li Z, Duan R, Du M, Li X, Wang X, Zhao X, Yang Y. Ultrasensitivity Detecting AChE through "Covalent Assembly" and Signal Amplification Strategic Approaches and Applied to Screen Its Inhibitor. Anal Chem 2023; 95:4503-4512. [PMID: 36812425 DOI: 10.1021/acs.analchem.2c05313] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
An ultrasensitivity detecting assay for acetylcholinesterase (AChE) activity was developed based on "covalent assembly" and signal amplification strategic approaches. After hydrolyzing thioacetylcholine by AChE and participation of thiol in a self-inducing cascade accelerated by the Meldrum acid derivatives of 2-[bis(methylthio) methylene] malonitrile (CA-2), mercaptans triggered an intramolecular cyclization assembly by the probe of 2-(2,2-dicyanovinyl)-5-(diethylamino) phenyl 2,4-dinitrobenzenesulfonate (Sd-I) to produce strong fluorescence. The limit of detection for AChE activity was as low as 0.0048 mU/mL. The detection system also had a good detecting effect on AChE activity in human serum and could also be used to screen its inhibitors. By constructing a Sd-I@agarose hydrogel with a smartphone, a point-of-care detection of AChE activity was achieved again.
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Affiliation(s)
- Yongwei Zhao
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ao Shen
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xiaohui Hao
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Mengwen Li
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Lala Hou
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ziqi Li
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ruochen Duan
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Man Du
- School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xue Li
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xuebing Wang
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xiuqing Zhao
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yunxu Yang
- Department of Chemistry and Chemical Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Yang T, Xie Y, Zhang S, He X. Synthesis of Dual Red‐Emitting Fluorescent Silver Nanoclusters in Aqueous Lipoic Acid‐Based Polymer Solutions and Application for Cu
2+
Detection and Cell Imaging. ChemistrySelect 2022. [DOI: 10.1002/slct.202200185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tao Yang
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241 China
| | - Yangchun Xie
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241 China
| | - Sanjun Zhang
- State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200241 China
| | - Xiaohua He
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241 China
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Xue Y, Cheng Z, Luo M, Hu H, Xia C. Synthesis of Copper Nanocluster and Its Application in Pollutant Analysis. BIOSENSORS 2021; 11:424. [PMID: 34821639 PMCID: PMC8615659 DOI: 10.3390/bios11110424] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 05/09/2023]
Abstract
Copper nanoclusters (Cu NCs) with their inherent optical and chemical advantages have gained increasing attention as a kind of novel material that possesses great potential, primarily in the use of contaminants sensing and bio-imaging. With a focus on environmental safety, this article comprehensively reviews the recent advances of Cu NCs in the application of various contaminants, including pesticide residues, heavy metal ions, sulfide ions and nitroaromatics. The common preparation methods and sensing mechanisms are summarized. The typical high-quality sensing probes based on Cu NCs towards various target contaminants are presented; additionally, the challenges and future perspectives in the development and application of Cu NCs in monitoring and analyzing environmental pollutants are discussed.
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Affiliation(s)
- Yan Xue
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China; (Y.X.); (Z.C.); (M.L.)
| | - Zehua Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China; (Y.X.); (Z.C.); (M.L.)
| | - Mai Luo
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China; (Y.X.); (Z.C.); (M.L.)
| | - Hao Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China; (Y.X.); (Z.C.); (M.L.)
| | - Chenglai Xia
- Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan 528000, China
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510150, China
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