首页|高模量高强度丝素蛋白GBR膜的制备及性能评估

高模量高强度丝素蛋白GBR膜的制备及性能评估

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目的 拟制备一种高模量和高强度的可降解丝素蛋白引导骨再生(GBR)膜,以解决骨缺损修复成骨空间维持问题.方法 提纯丝素蛋白后利用蒸发-热压法制备膜材,使用拉伸测试、体外模拟、细胞共培养等方法评估其理化性质与生物性能.结果 制得丝素蛋白 GBR 膜,体外模拟 12h降解率为 35.3%,湿态弹性模量达 45 MPa,拉伸强度达8.39 MPa,7 d 细胞生存率近 100%.结论 所制得可降解GBR 膜具有高模量和高强度,以及优异的生物相容性,有望为解决骨缺损修复成骨空间维持问题提供材料基础.
Fabrication and performance evaluation of high-modulus and high-strength silk fibroin guided bone regeneration membrane
Objective To develop a high modulus and high strength biodegradable silk fibroin GBR membrane to address the issue of maintaining the space for bone regeneration in the repair of osseous defects.Methods After purifying silk fibroin protein,membrane materials were prepared using evaporation-hot pressing method.The physi-cal and chemical properties and biological performance of the membranes were evaluated using stretching tests,in vitro simulations,and cell co-culturing methods.Results A silk fibroin GBR membrane was successfully fabrica-ted,resulting in a simulated degradation rate of 35.3%after 12 h in vitro.The wet-state elastic modulus reached 45 MPa,while the tensile strength reached 8.39 MPa.Furthermore,the cell survival rate was nearly 100%after 7 days.Conclusion The biodegradable GBR membrane produced in this study possesses high modulus and strength,as well as excellent biocompatibility,offering a promise as a foundation for addressing the bone defect re-pair and bone space maintenance.

bone defect repairmaintaining the space for bone regenerationguided bone regeneration mem-branesilk fibroinevaporation-heat pressing methodosteogenic differentiationtensile strength

廖小毓、方辉、杨飞宇、邹多宏

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安徽医科大学口腔医学院,安徽医科大学附属口腔医院,安徽省口腔疾病研究重点实验室,合肥 230032

上海交通大学医学院附属第九人民医院,上海交通大学口腔医学院,上海市口腔医学重点实验室,上海 200011

骨缺损修复 成骨空间维持 引导骨再生膜 丝素蛋白 蒸发-热压法 成骨分化 拉伸强度

国家自然科学基金上海交通大学医学院生物材料与再生医学研究院联合攻关项目上海交通大学医学院附属第九人民医院临床研究助推计划

321713472022LHA04JYLJ202102

2024

安徽医科大学学报
安徽医科大学

安徽医科大学学报

CSTPCD北大核心
影响因子:1.095
ISSN:1000-1492
年,卷(期):2024.59(4)
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