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Nie J, Tang X, Wei J, Li Z, Zhou B, Dai X, Wu W, Ni Z. Fluorescent Biomass-Based Platform for Detection of ClO - in Cells and Water-Soluble Systems. APPLIED SPECTROSCOPY 2024; 78:217-226. [PMID: 38190986 DOI: 10.1177/00037028231219524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
The generation and presence of excessive hypochlorous acid derivative ionic form (ClO-) could cause various diseases, such as arteriosclerosis, DNA damage, and cardiovascular illness. It is a critical need to develop a highly sensitive sensor for reliable detection of ClO- in cells and water-soluble systems. In this work, a hydroxyl group has been introduced into the compound 2-amino-3-(((E)-4-(2-(2-(2-hydroxyethoxy)ethyl)-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)benzylidene)amino)maleonitrile (NDC) to increase its solubility in water, at the same time, the hydrazone unit was designed as a specific recognition group for the "off-on" fluorescence probe of ClO-. The probe NDC presents high selectivity, sensitivity, anti-interference, and low detection limit (67 nM) for ClO-. The recognition mechanism that ClO- breaks the C=N bond and forms the fluorescent compound 4-(2-(2-(2-hydroxyethoxy)ethyl)-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)benzaldehyde (ND-3) has been confirmed by time-of-flight mass spectrometry. The probe NDC presents a good performance in the actual test of water samples and can be designed as the test papers for the quick and convenient detection of ClO- range from 0 to 1 μM. Moreover, the practical application was demonstrated by the successful imaging of endogenous and exogenous ClO- in HeLa cells. Our fluorescent biomass-based platform opens vast possibilities for repeatability, sensitivity, and selectivity detection of ClO- in cells and water-soluble systems.
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Affiliation(s)
- Jing Nie
- Institute of Building Intelligence, Jiangsu Vocational Institute of Architectural Technology, Xuzhou, Jiangsu, China
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
| | - Xinxue Tang
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Jianhua Wei
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
| | - Zebiao Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Binbin Zhou
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xi Dai
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
- School of Materials Science and Engineering, Xuzhou College of Industrial Technology, Xuzhou, Jiangsu, China
| | - Wenli Wu
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Zhonghai Ni
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu, China
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Zhang S, Wang T, Wang X, Liao W, Wang X, Yuan Y, Chen G, Jia X. A novel aggregation-induced emission fluorescent probe with large Stokes shift for sensitive detection of pH changes in live cells. LUMINESCENCE 2022; 37:2139-2144. [PMID: 36367244 DOI: 10.1002/bio.4407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/04/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
Abstract
The detection of intracellular pH is crucial for elucidating the pathological process of cancers, as well as for medical diagnostic applications. Here, we developed an aggregation-induced emission active pH-responsive fluorescent probe (TPE-DCP) for sensitively detecting cell pH changes. The probe shows obvious pH-sensing properties at ~615 nm, with a pKa value of 6.82 and a good linear pH response ranging from 8.5 to 4.5. TPE-DCP holds advantages such as excellent anti-interference performance, good photostability, and low cytotoxicity, and has been successfully used to image intracellular pH changes in cells.
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Affiliation(s)
- Shuwei Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Ting Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Xuewen Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Wenyi Liao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Xinyao Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Yu Yuan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Gang Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaodong Jia
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
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