口腔医学 ›› 2022, Vol. 42 ›› Issue (7): 582-586.doi: 10.13591/j.cnki.kqyx.2022.07.002

• 基础研究 • 上一篇    下一篇

钛表面芬母多肽涂层的构建及其抗菌性能探究

吴奇蓉, 雷晨, 吴迪, 周和阳, 汤春波   

  1. 南京医科大学附属口腔医院口腔种植科,南京医科大学口腔疾病研究江苏省重点实验室,江苏省口腔转化医学工程研究中心,江苏南京(210029)
  • 修回日期:2022-03-16 出版日期:2022-07-28 发布日期:2022-07-22
  • 通讯作者: 汤春波 Tel:(025)69593084 E-mail:cbtang@njmu.edu.cn
  • 基金资助:
    国家自然科学基金(82170993);政府间国际科技创新合作重点专项(2018YFE0194100)

Construction and antibacterial property of funme peptide coating on titanium surface

WU Qirong, LEI Chen, WU Di, ZHOU Heyang, TANG Chunbo   

  1. Department of Dental Implant and Prosthodontics, The Affiliated Hospital of Stomatology, Nanjing Medical University; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
  • Revised:2022-03-16 Online:2022-07-28 Published:2022-07-22

摘要: 目的 制备载芬母多肽(FP)的多孔钛表面并探究其生物相容性及抗菌性能。方法 将大颗粒喷砂酸蚀(SLA)钛表面设为对照组,通过碱热和硅烷化处理将FP负载在SLA钛表面,根据FP的不同浓度设置三组实验组,对各组表面进行元素分析;将MC3T3-E1细胞接种于各组样品表面,探究其生物相容性;将金黄色葡萄球菌接种于各组样品表面,检测其抗菌性。结果 各实验组均被成功硅烷化,且FP分子在硅烷化的钛表面上附着稳定。与SLA钛表面相比,实验组钛表面具有显著的抗菌性能,5 mg/mL组性能更佳,同时具有良好的生物相容性,能明显上调MC3T3-E1成骨细胞的黏附铺展和增殖。结论 载FP的多孔钛表面具有良好的生物相容性和抗菌性。

关键词: 钛, 表面处理, 硅烷化, 多肽, 抗菌性

Abstract: Objective To prepare porous titanium surface loaded with funme peptide (FP) and explore its biocompatibility and antibacterial properties. Methods The sandblast and acid-etching (SLA) titanium was set as the control group, and the FP was loaded on the SLA titanium by alkali heating and silanization treatment. Three experimental groups were set up according to different concentrations of FP, and the surface elements of each group were analyzed. MC3T3-E1 cells were inoculated on the surface of each sample to investigate their biocompatibility. Staphylococcus aureus was inoculated on the surface of each group to detect their antibacterial property. Results All the experimental groups were silanized successfully, and FP molecule adhered stably on the surface of silanized titanium. Compared with SLA titanium, titanium in experimental groups had significant antibacterial performance, and the 5 mg/mL group was better. Meanwhile, it had good biocompatibility and could significantly up-regulate the adhesion and proliferation of MC3T3-E1 cells. Conclusion The porous titanium surface of FP has good biocompatibility and antibacterial property.

Key words: titanium, surface treatment, silanization, polypeptide, antibacterial property

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