AIE‐Active Glycomimetics Triggered Bacterial Agglutination and Membrane‐Intercalating toward Efficient Photodynamic Antiseptic

作者：Qiaoni Guo, Shaobo Xue, Jianguo Feng, Chen Peng, Chengcheng Zhou, Yan Qiao · 发表于：Advanced Healthcare Materials · 年份：2023 · DOI：10.1002/adhm.202300818 · 被引用次数：17 · 研究领域：Nanoplatforms for cancer theranostics、Luminescence and Fluorescent Materials、Antimicrobial Peptides and Activities

Abstract Opportunistic infections caused by Pseudomonas aeruginosa ( P. aeruginosa ) are particularly difficult to treat due to the altered membrane permeability and inherent resistance to conventional antibiotics. Here, a cationic glycomimetics is designed and synthesized with aggregation‐induced emission (AIE) characteristics namely TPyGal, which self‐assembles into the spherical aggregates with galactosylated surface. TPyGal aggregates can effectively cluster P. aeruginosa through multivalent carbohydrate‐lectin interactions and auxiliary electrostatic interactions and subsequently trigger membrane‐intercalating, which results in efficient photodynamic eradication of P. aeruginosa under white light irradiation by in situ singlet oxygen ( 1 O 2 ) burst to disrupt bacterial membrane. Furthermore, the results demonstrate that TPyGal aggregates promote the healing of infected wounds, indicating the potential for clinical treatment of P. aeruginosa infections.