坚固,耐用和强度结合的自我愈合的软骨模仿非体组装的水凝纳米结构:实验和理论之间的相互作用
Shikha Awasthi1, Sarvesh Kumar Pandey2, Hulikere Jagdish Shwetha3
1Department of Chemistry, School of Basic Sciences, Manipal University Jaipur, Jaipur - 303007, Rajasthan, India. awas.shikha2212@gmail.com.
Nanoscale
|December 5, 2024
概括
这项研究开发了使用银和化用于软骨组织工程的坚固,自我愈合的聚烯胺纳米复合材料. 这些先进的生物材料表现出增强的强度,耐用性和生物活性,为软组织再生应用铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 纳米技术 纳米技术
背景情况:
- 设计具有高强度,强粘合和自我愈合特性的单一材料是具有挑战性的.
- 软骨组织激发了用于组织再生的先进生物材料的开发.
- 基于聚烯胺 (PAM) 的纳米复合材料提供了创建强大和功能性的生物材料的潜力.
研究的目的:
- 合成和表征基于聚烯胺 (PAM) 的二元和三元纳米复合材料,其中包含银 (Ag) 和氧化六角化 (BNOH).
- 研究这些新型纳米复合材料的机械强度,耐用性和生物活性,以便在软组织工程,特别是关节软骨再生方面的潜在应用.
主要方法:
- 合成了PAM-Ag,PAM-BNOH和PAM-Ag-BNOH纳米复合材料的合成.
- 计算建模和DFT方法用于引入强交界相互作用的非共价键.
- 机械测试 (压力强度,扬模量) 和电化学测试在模拟的体液中测试耐用性和耐腐蚀性.
- 评估生物活性,包括骨形成,自我愈合,细胞毒性和抗菌性质.
主要成果:
- 与二元复合材料相比,PAM-Ag-BN纳米复合材料表现出优越的机械强度 (0.31 MPa压力强度,0.29 MPa模量).
- 在模拟的体液中,trimer水凝表现出增强的耐腐蚀性 (i_corr = 2.65 × 10^-5 A cm^-2).
- 该PAM-Ag-BN纳米复合物显示出优异的生物活性:骨形成能力,自我愈合,低细胞毒性和抗菌作用.
- Ag,BNOH和PAM之间的协同效应,由键促进,导致了强大的界面互锁.
结论:
- 开发的PAM-Ag-BN水凝复合物是一种有前途的生物材料,用于软组织再生,特别是关节软骨.
- 这项研究引入了新的自我愈合纳米复合材料,具有在组织工程中的多种应用潜力.
- 这些发现为设计由生物组织启发的智能,耐用和生物活性材料开辟了新的途径.
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