Double-Edged Dissolving Microneedle Patches Loaded with Zn/Ce Composites and Vancomycin for Treatment of Drug-Resistant Bacterial Infected Skin Abscess.

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Tác giả: Zhaoyou Chu, Yechun Jiang, Yu Jin, Yan Ma, Haisheng Qian, Hui Shen, Yujie Wang, Silong Wu, Miaomiao Yang, Pengfei Zhu

Ngôn ngữ: eng

Ký hiệu phân loại: 594.38 *Pulmonata

Thông tin xuất bản: Germany : Small (Weinheim an der Bergstrasse, Germany) , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 149243

The management of abscess wounds induced by antibiotic-resistant bacterial infections has become increasingly formidable due to the widespread overutilization and misuse of antimicrobial agents. This study presents an innovative dissolvable microneedle (MN) patch incorporating Au@ZnO/Ce nanocomposites and vancomycin (AZC/Van@MN), exhibiting robust antimicrobial and anti-inflammatory properties, meticulously engineered for the therapeutic intervention of abscess wounds. The developed AZC/Van@MN patch demonstrates exceptional biocompatibility as evidenced by comprehensive histopathological and hematological assessments. It effectively eradicates bacterial colonies through the synergistic action of Van and mild photothermal therapy (PTT, ≤42 °C). Transcriptomic analysis elucidates that the antibacterial mechanism involves the upregulation of riboflavin biosynthesis and the suppression of arginine biosynthesis pathways. Furthermore, AZC/Van@MN significantly reduces abscess dimensions, bacterial load, and inflammatory response, while simultaneously enhancing wound healing via accelerated re-epithelialization and angiogenesis. This double-edged MN patch represents a promising strategy for combating skin abscesses instigated by antibiotic-resistant bacteria.
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