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一种可注射的聚 (乳酸) /合纳米酸复合微球的可注射骨膏,用于头骨修复

Xinrui Du¹, Xiaoting Yuan¹, Si Lin¹

¹State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, PR China.

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|May 15, 2024

概括

这项研究开发了一种可注射的骨糊,使用聚 (乳酸) /合纳米酸 (PLA/纳米-ZnHA) 复合微球. 最佳的兴奋剂水平 (体外5%-10%,体内0-5%) 显著增强了骨修复特性.

科学领域:

生物材料科学生物材料科学
再生医学是一种再生医学.
纳米技术纳米技术

背景情况:

骨缺陷需要先进的材料来有效修复.
可注射的骨膏提供了最少侵入性的治疗选择.
聚 (乳酸) /添加纳米酸 (PLA/纳米-ZnHA) 复合物显示出对骨再生的前景.

研究的目的:

准备和描述基于PLA/纳米-ZnHA复合微球的可注射骨膏配方.
为了评估成分比对骨质糊的注射能力的影响.
调查不同兴奋剂度对生物特性和骨修复功效的影响.

主要方法:

制造PLA/纳米-ZnHA复合微球.
使用PLA/纳米-ZnHA,藻酸盐 (SA) 和聚乙醇 (PVA) 制备可注射骨膏.
评估糊剂的注射性 (力测量).
关于细胞增殖和骨质分化的体外研究.
在体内研究评估骨修复,骨体积/组织体积 (BV/TV) 和骨矿物质密度 (BMD).

主要成果:

一种具有良好的注射能力 (平均力:4.46±1.72 N) 的可注射骨糊成功制成.
在体外,5-10%的兴奋剂与较高度相比,显著促进了细胞增殖和骨质分化.
在体内,0-5%的兴奋剂对骨修复产生了显著的促进作用,在早期阶段改善了骨矿物质密度.

结论:

PLA/nano-ZnHA复合微球注射糊是修复骨缺陷的一个可行的材料.
优化兴奋剂度对于增强生物活性和骨再生至关重要.
开发的可注射糊提供了方便的手术应用和有效的填充能力,用于组织修复.

关键词:

骨质糊是一种骨质糊.复合微球是复合的微球.骨质变异的分化骨质变异的分化聚乳酸是一种多乳酸.添加的纳米氧酸酸.

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