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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
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