Issue 24, 2023

Promoting photothermal antibacterial activity through an excited-state intramolecular proton transfer process

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.

Graphical abstract: Promoting photothermal antibacterial activity through an excited-state intramolecular proton transfer process

Supplementary files

Article information

Article type
Paper
Submitted
07 12月 2022
Accepted
08 2月 2023
First published
08 2月 2023

J. Mater. Chem. B, 2023,11, 5537-5543

Promoting photothermal antibacterial activity through an excited-state intramolecular proton transfer process

W. Yao, T. Deng, A. Huang, Y. Zhang, Q. Li and Z. Li, J. Mater. Chem. B, 2023, 11, 5537 DOI: 10.1039/D2TB02664C

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