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第46卷第8期 沈世彬,晏美俊,王 星,等. 基于OPA三元缩合反应的多功能抗菌水凝胶敷料的构建及体外性能
2026年8月 研究[J]. 南京医科大学学报(自然科学版),2026,46(8):1175-1186 ·1185 ·
中的实时可视化监测提供了可能。此外,细胞实 financial support.
验结果显示,OSN 水凝胶不仅无细胞毒性,还能够 [参考文献]
促进 L929 细胞迁移,提示其具有潜在的促伤口愈
[1] BAI Q,HU F F,GOU S Y,et al. Curcumin⁃loaded chito⁃
合能力。
san⁃based hydrogels accelerating S. aureus⁃infected wound
先前研究显示,80%的细菌感染与生物膜形成 healing[J]. Int J Biol Macromol,2024,259(Pt 1):
密切相关,这不仅显著增加了细菌清除难度,还会导 129111
致伤口愈合延迟,相比浮游细菌,生物膜对抗生素的 [2] LIU Y F,NI P W,HUANG Y,et al. Therapeutic strate⁃
耐受性高数千倍 [26-28] 。但也有研究表明,在大分子底 gies for chronic wound infection[J]. Chin J Traumatol,
物或药物中引入异吲哚和苯并异吲哚基团,可显著 2022,25(1):11-16
增强其对包括生物膜形成菌和耐药菌在内的多种 [3] MALONE M,SCHULTZ G. Challenges in the diagnosis
细菌的抗菌活性 [29] 。在抗菌性能方面,OSN⁃2 与 and management of wound infection[J]. Br J Dermatol,
2022,187(2):159-166
OSN⁃3 组水凝胶对 MRSA 与 E.coli 均表现出显著的
[4] ABBAS A,BARKHOUSE A,HACKENBERGER D,et al.
抑制效果,其抗菌机制与异吲哚结构破坏细菌膜完
Antibiotic resistance:a key microbial survival mechanism
整性有关 [30] ;本研究结果表明,异吲哚结构可诱导
that threatens public health[J]. Cell Host Microbe,2024,
细菌内ROS过量生成,引发氧化应激损伤,对MRSA
32(6):837-851
与 E.coli 均具有强效杀灭作用。SEM 进一步证实, [5] LI D W,TANG G K,YAO H,et al. Formulation of pH⁃re⁃
OSN⁃1水凝胶对细菌生物膜的清除效果极其微弱,而 sponsive PEGylated nanoparticles with high drug loading
OSN⁃2与 OSN⁃3 能够有效破坏生物膜结构,从而显 capacity and programmable drug release for enhanced an⁃
示出良好的广谱抗菌潜力。该体系无需抗生素即 tibacterial activity[J]. Bioact Mater,2022,16:47-56
可实现高效抗菌,显著降低耐药风险,为耐药菌感 [6] NGUYEN H M,NGOC LE T T,NGUYEN A T,et al. Bio⁃
染创面治疗提供了安全策略。 medical materials for wound dressing:recent advances
综上所述,本研究基于OPA三元缩合反应成功 and applications[J]. RSC Adv,2023,13(8):5509-5528
[7] YOUSEFIAN F,HESARI R,JENSEN T,et al. Antimicro⁃
构建出一种具备可注射、快速成型、超强黏附、荧光
bial wound dressings:a concise review for clinicians[J].
可视、可控降解、生物相容性良好、广谱高效抗菌活
Antibiotics(Basel),2023,12(9):1434
性以及潜在促愈合能力于一体的无抗生素多功能
[8] SU J J,LI J K,LIANG J H,et al. Hydrogel preparation
抗菌水凝胶敷料 OSN,为无抗生素智能伤口敷料的 methods and biomaterials for wound dressing[J]. Life,
研制提供了新思路与新方法。但本研究目前仅完 2021,11(10):1016
成体外验证,后续还将继续开展动物模型体内实验 [9] CAI J,GUO J M,WANG S G. Application of polymer hy⁃
进一步证实其应用潜力。 drogels in the prevention of postoperative adhesion:a re⁃
利益冲突声明: view[J]. Gels,2023,9(2):98
所有作者声明无利益冲突。 [10]ZHANG Z,HE C L,RONG Y,et al. A fast and versatile
Conflict of Interests: cross⁃linking strategy viao⁃phthalaldehyde condensation
All authors declare no conflict of interests. for mechanically strengthened and functional hydrogels[J].
作者贡献声明: Natl Sci Rev,2021,8(4):nwaa128
沈世彬负责实验设计、数据分析、作图和文章撰写;晏美 [11]REN H,ZHANG Z,CHENG X L,et al. Injectable,self⁃
俊负责数据分析代码支持、文章修改、数据整理及分析;王星 healing hydrogel adhesives with firm tissue adhesion and
负责研究指导、实验设计、经费支持和数据支持;唐国柯负责 on⁃demand biodegradation for sutureless wound closure[J].
研究指导、论文审阅、经费支持。 Sci Adv,2023,9(33):eadh4327
Author’s Contributions: [12]ZHANG Y,ZHANG Q,WONG C T T,et al. Chemoselec⁃
SHEN Shibin was responsible for experimental design, tive peptide cyclization and bicyclization directly on un⁃
data analysis,figure drawing,and manuscript writing;YAN protected peptides[J]. J Am Chem Soc,2019,141(31):
Meijun provided coding support for data analysis,revised the 12274-12279
manuscript,data collation and analysis;WANG Xing provided [13]CAO Q C,WANG H F,WANG X,et al. A versatile cross⁃
research guidance,participated in experimental design,and pro⁃ linking strategy on facile fabrication of fluorescent hydro⁃
vided financial support and data support. TANG Guoke provided gels via O⁃phthalaldehyde ternary condensation[J]. Chin
research guidance ,reviewed the manuscript ,and provided J Chem,2021,39(8):2195-2200

