We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Polymer Photocatalysts Containing Segregated π‐Conjugation Units with Electron‐Trap Activity for Efficient Natural‐light‐driven Bacterial Inactivation.
- Authors
Wu, Xiaojie; Hu, Bochen; Li, Di; Chen, Biyi; Huang, Yuanyong; Xie, Zhongkai; Li, Longhua; Shen, Nanjun; Yang, Fuchen; Shi, Weidong; Chen, Ming; Zhu, Yongfa
- Abstract
Development of highly efficient and metal‐free photocatalysts for bacterial inactivation under natural light is a major challenge in photocatalytic antibiosis. Herein, we developed an acidizing solvent‐thermal approach for inserting a non‐conjugated ethylenediamine segment into the conjugated planes of 3,4,9,10‐perylene tetracarboxylic anhydride to generate a photocatalyst containing segregated π‐conjugation units (EDA‐PTCDA). Under natural light, EDA‐PTCDA achieved 99.9 % inactivation of Escherichia coli and Staphylococcus aureus (60 and 45 min), which is the highest efficiency among all the natural light antibacterial reports. The difference in the surface potential and excited charge density corroborated the possibility of a built‐in electron‐trap effect of the non‐conjugated segments of EDA‐PTCDA, thus forming a highly active EDA‐PTDA/bacteria interface. In addition, EDA‐PTCDA exhibited negligible toxicity and damage to normal tissue cells. This catalyst provides a new opportunity for photocatalytic antibiosis under natural light conditions.
- Subjects
BACTERIAL inactivation; POLYMERS; SURFACE potential; STAPHYLOCOCCUS aureus; ESCHERICHIA coli; ANTIBIOSIS; PHOTOCATALYSTS
- Publication
Angewandte Chemie, 2023, Vol 135, Issue 48, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202313787