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

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 (AI...

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Bibliographic Details
Published in:Advanced healthcare materials 2023-10, Vol.12 (26), p.e2300818-e2300818
Main Authors: Guo, Qiaoni, Xue, Shaobo, Feng, Jianguo, Peng, Chen, Zhou, Chengcheng, Qiao, Yan
Format: Article
Language:English
Subjects:
Agglutination
Aggregates
Antibiotics
Carbohydrates
Electrostatic properties
Light irradiation
Membrane permeability
Membranes
Pseudomonas aeruginosa
Singlet oxygen
White light
Wound healing
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Summary: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 ( O ) 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.
ISSN:2192-2640
2192-2659
DOI:10.1002/adhm.202300818