Dissolving microneedle system containing Ag nanoparticle-decorated silk fibroin microspheres and antibiotics for synergistic therapy of bacterial biofilm infection.

Autor: Li Y; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Gong JY; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Wang P; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Fu H; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Yousef F; Department of Chemical Engineering, University of Chester, Chester CH1 4BJ, United Kingdom., Xie R; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Wang W; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Liu Z; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Pan DW; School of Chemical Engineering, Sichuan University, Chengdu 610065, China., Ju XJ; School of Chemical Engineering, Sichuan University, Chengdu 610065, China. Electronic address: juxiaojie@scu.edu.cn., Chu LY; School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
Jazyk: angličtina
Zdroj: Journal of colloid and interface science [J Colloid Interface Sci] 2024 May; Vol. 661, pp. 123-138. Date of Electronic Publication: 2024 Jan 26.
DOI: 10.1016/j.jcis.2024.01.147
Abstrakt: Most cases of delayed wound healing are associated with bacterial biofilm infections due to high antibiotic resistance. To improve patient compliance and recovery rates, it is critical to develop minimally invasive and efficient methods to eliminate bacterial biofilms as an alternative to clinical debridement techniques. Herein, we develop a dissolving microneedle system containing Ag nanoparticles (AgNPs)-decorated silk fibroin microspheres (SFM-AgNPs) and antibiotics for synergistic treatment of bacterial biofilm infection. Silk fibroin microspheres (SFM) are controllably prepared in an incompatible system formed by a mixture of protein and carbohydrate solutions by using a mild all-aqueous phase method and serve as biological templates for the synthesis of AgNPs. The SFM-AgNPs exert dose- and time-dependent broad-spectrum antibacterial effects by inducing bacterial adhesion. The combination of SFM-AgNPs with antibiotics breaks the limitation of the antibacterial spectrum and achieves better efficacy with reduced antibiotic dosage. Using hyaluronic acid (HA) as the soluble matrix, the microneedle system containing SFM-AgNPs and anti-Gram-positive coccus drug (Mupirocin) inserts into the bacterial biofilms with sufficient strength, thereby effectively delivering the antibacterial agents and realizing good antibiofilm effect on Staphylococcus aureus-infected wounds. This work demonstrates the great potential for the development of novel therapeutic systems for eradicating bacterial biofilm infections.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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