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可形面团类型的水凝从动态网络转变为刚性网络,以修复不规则的骨缺陷

Ningtao Wang¹, Jie Chen², Yanyang Chen²

¹Department of Endodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, PR China.

Bioactive materials

|July 15, 2024

概括

这项研究开发了一种新型面团型水凝 (DR-Net),可以塑造以适应不规则的骨缺陷. 水凝促进骨再生,并显示出临床应用的希望.

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.
整形外科手术整形外科手术

背景情况:

不规则的骨缺陷由于其不可预测的性质而带来了重大临床挑战.
现有的骨移植通常无法充分满足这些复杂缺陷的修复要求.

研究的目的:

开发一种多功能,面团型的水凝,能够适应不规则的骨缺陷.
评估水凝的物理特性,形状适应性和促进骨再生的有效性.

主要方法:

制造一个双网络水凝 (DR-Net) 具有动态 (离子-银离子) 和共价 (光交联) 网络.
在猪下巴模型中评估水凝的结性和形状适应性.
在光固化前后对机械性能 (储存模块) 的评估.
在生体内测试P24载基凝在老鼠形缺陷.

主要成果:

该DR-Net水凝表现出极好的形状适应性,完全符合不规则的骨缺陷形态.
光固化显著增加了水凝的储存模块8.6倍 (3.7kPa到32kPa).
水凝有效地输送了P24,加速了大鼠关键大小的骨缺陷的骨修复.

结论:

面团型的DR-Net水凝为不规则的骨缺陷提供了卓越的 kneadability 和空间维护能力.
水凝的骨质活性和适应性表明其在骨缺陷修复中具有显著的临床转化潜力.

关键词:

面团类型的水凝.动态网络的动态网络.不规则的骨缺陷不规则的骨缺陷可跪地使用.刚性网络的刚性网络是一个固态网络.

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