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Different positions of cyano substitution controlled directionality of ESIPT processes with two asymmetric proton acceptors system: A TD-DFT study. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Yao W, Deng T, Huang A, Zhang Y, Li Q, Li Z. Promoting photothermal antibacterial activity through an excited-state intramolecular proton transfer process. J Mater Chem B 2023. [PMID: 36806436 DOI: 10.1039/d2tb02664c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The construction of an efficient photothermal antibacterial platform is a promising strategy for the treatment of drug-resistant bacterial infections. Herein, through the introduction of excited-state intramolecular proton transfer to promote the photothermal effect, N-(2,4-dihydroxybenzylidene)-4-aminophenol (DOA)-polyvinyl alcohol (PVA) systems (DPVA) can reach 55 °C within 10 s under irradiation. They show superior antibacterial behavior against drug-resistant bacteria and a therapeutic effect on infected skin wounds with only 100 s of irradiation, much faster than those of reported photothermal materials (5-10 min). This work provides a convenient approach to fabricate broad-spectrum antibacterial wound dressings for treating bacteria-infected wounds, greatly contributing to the design and applications of photothermal antibacterial platforms.
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Affiliation(s)
- Wanni Yao
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, TaiKang Center for Life and Medical Sciences, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China.
| | - Tian Deng
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, P. R. China.
| | - Arui Huang
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, TaiKang Center for Life and Medical Sciences, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China.
| | - Yufeng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, P. R. China.
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, TaiKang Center for Life and Medical Sciences, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China.
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, TaiKang Center for Life and Medical Sciences, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China. .,Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China
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Li S, Cao Y, Dong H. Solvent polarity dependent excited state behaviors for 2‐(2‐hydroxyphenyl) benzothiazole‐5‐(9H‐carbazol‐9‐yl)phenol fluorophore: A theoretical study. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Songtao Li
- Hebei Key Laboratory of Physics and Energy Technology, Department of Mathematics and Physics North China Electric Power University Baoding China
| | - Yahui Cao
- Hebei Key Laboratory of Physics and Energy Technology, Department of Mathematics and Physics North China Electric Power University Baoding China
| | - Hao Dong
- Hebei Key Laboratory of Physics and Energy Technology, Department of Mathematics and Physics North China Electric Power University Baoding China
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Shi L, Yang D. The alkoxylation effects on the excited‐state intramolecular proton transfer behaviors for 2,6‐bis(benzothiazolyl‐2‐yl)phenol fluorophore: A theoretical research. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lijuan Shi
- Division of General Education Zhongyuan Institute of Science and Technology Zhengzhou China
| | - Dapeng Yang
- College of Physics and Electronics North China University of Water Resources and Electric Power Zhengzhou China
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Liang X, Fang H. Fine-tuning directionality of ESIPT behavior of the asymmetric two proton acceptor system via atomic electronegativity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120406. [PMID: 34600322 DOI: 10.1016/j.saa.2021.120406] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
The excited state intramolecular proton transfer (ESIPT) processes and photophysical features of 3-(benzo[d]oxazol-2-yl)-2-hydroxy-5-methoxy benzaldehyde (BOHMB) and 3-(benzo[d]selenazole-2-yl)-2-hydroxy-5-methoxy benzaldehyde (BSeHMB) molecules were investigated in detail by using density functional theory (DFT) and time-dependent DFT (TD-DFT) methods. The strengthened excited state hydrogen bonds (H-bond) of the title compounds are favorable to ESIPT process according to the analyses of structural parameter, infrared vibration frequency, electron density and reduced density gradient. The atomic substitution changes the intramolecular H-bond O1-H2…O3 and O1-H2…N4 and the fluorescence emission peaks of BOHMB-N and BSeHMB-N in normal and tautomer forms. The potential energy curves indicate that the ESIPT energy barriers of BOHMB-O, BTHMB-O and BSeHMB-O increase as the electron-withdrawing abilities of atoms (from O to S and Se) are gradually weakened. However, the ESIPT energy barriers of BOHMB-N and BTHMB-N follow the totally opposite order. For BOHMB and BSeHMB, ESIPT process prefers to occur in the direction from O-H group to the O atom.
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Affiliation(s)
- Xiuning Liang
- Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Hua Fang
- Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing 210037, People's Republic of China.
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