高等学校化学学报 ›› 2025, Vol. 46 ›› Issue (7): 20240566.doi: 10.7503/cjcu20240566

• 高分子化学 • 上一篇    下一篇

一锅法对PMMA及聚酯类材料的表面改性及抗生物垢性能评价

赵莹1,2, 董继程1,2, 方元1,2, 张立军3,4(), 靳琳3,4, 刘波1,2, 程昉1,2()   

  1. 1.大连理工大学化工学院制药工程系, 2.精细化工国家重点实验室, 3. 医学部, 大连 116024
    4.大连市第三人民医院, 大连 116033
  • 收稿日期:2024-12-23 出版日期:2025-07-10 发布日期:2025-04-01
  • 通讯作者: 张立军,程昉 E-mail:lijunzhangw@sina.com;ffcheng@dlut.edu.cn
  • 基金资助:
    国家自然科学基金(82171032);国家自然科学基金(21773022);辽宁省应用基础研究项目(2022JH2/101300036);大连市第三人民医院科研项目(2022ky001);大连市第三人民医院科研项目(2022ky002)

Surface Modification of PMMA and Polyester Materials by One-pot Method and Anti-biofouling Performance Evaluation of the Coatings

ZHAO Ying1,2, DONG Jicheng1,2, FANG Yuan1,2, ZHANG Lijun3,4(), JIN Lin3,4, LIU Bo1,2, CHENG Fang1,2()   

  1. 1.Department of Pharmaceutical Engineering,School of Chemical Engineering
    2.State Key Laboratory of Fine Chemicals
    3.Faculty of Medicine,Dalian University of Technology,Dalian 116024,China
    4.Dalian Third People’s Hospital,Dalian 116033,China
  • Received:2024-12-23 Online:2025-07-10 Published:2025-04-01
  • Contact: ZHANG Lijun, CHENG Fang E-mail:lijunzhangw@sina.com;ffcheng@dlut.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(82171032);the Applied Basic Research Program of Liaoning Province, China(2022JH2/101300036);the Dalian Third People’s Hospital Research Program, China(2022ky001)

摘要:

报道了一种对聚甲基丙烯酸甲酯(PMMA)及聚酯类材料表面改性的通用方法, 制备了具有广谱性和可持续后续反应活性的抗蛋白抗细菌涂层, 该方法克服了通过引入特定基团用于表面改性的限制. 分别采用一锅法和两步法在PMMA上聚合两性离子单体甲基丙烯酸磺基甜菜碱(SBMA), 元素分析结果表明, 经一锅法制备的PMMA-SBMA改性涂层的SBMA含量最高, 因此选择一锅法进行后续研究. 在聚对苯二甲酸丁二醇酯(PBT)有机玻片、 聚碳酸酯(PC)有机玻片、 聚对苯二甲酸-1,4-环己烷二甲醇酯(PCT)有机玻片和聚对苯二甲酸乙二醇酯(PET)有机玻片等聚酯类材料的表面上验证了该方法的广谱性. Ellman’s assay定量研究结果表明, PMMA-SBMA改性涂层表面仍存在乙烯基砜基基团, 表明该涂层具有可持续后续反应活性. 采用石英晶体 微天平(QCM)评价了涂层抗牛血清白蛋白(BSA)吸附的能力, 结果表明, 一锅法涂层显著减少了72.3%的蛋 白质非特异性吸附; 静态涂层抗细菌黏附能力研究结果表明, 对于蜡样芽孢杆菌、 大肠杆菌和金黄色葡萄 球菌, 静态下涂层细菌附着面积减少80%以上; 流动池和流场计算结果表明, 该涂层在两种剪切力(0.16和 1.6 dynes/cm2)的流动条件下均可以抵抗细菌附着.

关键词: 一锅法, 两性离子, 抗细菌黏附, 流动条件, 剪切力

Abstract:

A generalized method for surface modification of poly(methyl methacrylate)(PMMA) and polyester materials has been reported to prepare broad-spectrum and subsequently reactive coatings, which have anti-protein and anti-bacterial properties. The method also overcomes the common limitation of surface modification by introducing specific groups. The zwitterionic monomer(sulfobetaine methacrylate, SBMA) was polymerized on PMMA by one-pot method and two-step method, respectively. The elemental analysis results showed that the PMMA-SBMA modified coating prepared by one-pot method had the highest SBMA content, so the one-pot method was selected for follow-up study. At the same time, the optimized modification method was verified to be broad-spectrum on the surface of other polyester materials including polybutylene terephthalate(PBT), polycarbonate(PC), poly(1,4- cyclohexanedicarbinol) terephthalate(PCT) and polyethylene terephthalate(PET). Ellman’s assay showed that vinyl sulfone groups were still present on the PMMA-SBMA’s surface of the modified coating, indicating that the coating had sustainable subsequent reactivity. The anti-biological scale experiment of the PMMA-SBMA modified coating was carried out. The anti-BSA adsorption capacity of the coating was evaluated by quartz electronic microbalance(QCM), and the results showed that the one-pot coating significantly reduced the non-specific adsorption of protein by 72.3%. For Bacillus cereus, Escherichia coli and Staphylococcus aureus, the bacterial adhesion area of the static coating was reduced by more than 80%. The results of flow pool and flow field calculation showed that the bacterial adhesion ability can be resisted under the flow conditions of two shear forces(0.16 and 1.6 dynes/cm2).

Key words: One-pot method, Zwitterion, Anti-bacterial adhesion, Flow condition, Shear force

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