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Hypochlorite-Activated Fluorescence Emission and Antibacterial Activities of Imidazole Derivatives for Biological Applications
- Title
- Hypochlorite-Activated Fluorescence Emission and Antibacterial Activities of Imidazole Derivatives for Biological Applications
- Authors
- Thanh Chung Pham; Van-Nghia Nguyen; Choi, Yeonghwan; Kim, Dongwon; Jung, Ok-Sang; Lee, Dong Joon; Kim, Hak Jun; Lee, Myung Won; Yoon, Juyoung; Kim, Hwan Myung; Lee, Songyi
- Ewha Authors
- 윤주영; Nguyen Van Nghia
- SCOPUS Author ID
- 윤주영; Nguyen Van Nghia
- Issue Date
- 2021
- Journal Title
- FRONTIERS IN CHEMISTRY
- ISSN
- 2296-2646
- Citation
- FRONTIERS IN CHEMISTRY vol. 9
- Keywords
- fluorescent sensor; fluorogenic probe; hypochlorite sensor; antibacterial effect; probe-killer
- Publisher
- FRONTIERS MEDIA SA
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- The ability to detect hypochlorite (HOCl/ClO-) in vivo is of great importance to identify and visualize infection. Here, we report the use of imidazoline-2-thione (R1SR2) probes, which act to both sense ClO- and kill bacteria. The N2C=S moieties can recognize ClO- among various typical reactive oxygen species (ROS) and turn into imidazolium moieties (R1IR2) via desulfurization. This was observed through UV-vis absorption and fluorescence emission spectroscopy, with a high fluorescence emission quantum yield (Phi(F) = 43-99%) and large Stokes shift (Delta v similar to 115 nm). Furthermore, the DIM probe, which was prepared by treating the DSM probe with ClO-, also displayed antibacterial efficacy toward not only Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) but also methicillin-resistant Staphylococcus aureus (MRSA) and extended-spectrum beta-lactamase-producing Escherichia coli (ESBL-EC), that is, antibiotic-resistant bacteria. These results suggest that the DSM probe has great potential to carry out the dual roles of a fluorogenic probe and killer of bacteria.
- DOI
- 10.3389/fchem.2021.713078
- Appears in Collections:
- 자연과학대학 > 화학·나노과학전공 > Journal papers
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