双重和连续的药物递送系统具有抗微生物和骨再生治疗效果
Miguel A Rodrigues1, Carla Ferreira2, João P Borges3
1LAQV-REQUIMTE, FEUP, Department of Mechanical Engineering, University of Porto, Rua Dr Roberto Frias, s/n, 4200-465, Portugal. malopes@fe.up.pt.
Journal of materials chemistry. B
|July 2, 2025
概括
这项研究开发了新的生物陶-酸盐系统,用于连续释放药物,有效地对抗骨感染并促进骨再生. 该系统确保了抗微生物药物的控制释放,随后是骨愈合剂.
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.
- 药物输送系统 药物输送系统
背景情况:
- 由于手术感染阻碍了骨缺陷的愈合,因此需要采用双重作用的解决方案.
- 目前的局部药物输送系统在抗菌剂和骨再生剂的精确顺序释放方面扎.
研究的目的:
- 开发和评估新型生物陶-酸盐输送系统,以控制抗微生物和骨再生剂的顺序释放.
- 研究加工方法对药物稳定性和释放动力学的影响.
主要方法:
- 开发空洞/非空洞的多孔生物陶-合金复合材料.
- 添加了珍塔米辛 (抗微生物药物) 和拉洛西芬/阿伦德罗纳特 (骨再生剂).
- 释放特征的评估,动态建模,以及冷化和灭菌 (乙烯氧化物,超临界CO2) 的影响.
主要成果:
- 达到精确的双序释放: gentamicin (2-3周),其次是骨再生剂 (2-3周).
- 亨塔米辛主要通过扩散释放;骨再生剂通过扩散和矩阵胀/侵蚀.
- 软化和灭菌方法 (包括超临界CO2) 对释放概况和药物稳定性影响最小,而 جنت米辛保留了抗菌活性.
结论:
- 开发的生物陶-酸盐系统为局部,特定阶段的抗微生物药物和骨再生剂提供了有前途的解决方案.
- 这些系统在临床环境中显示出有效的感染控制和增强骨修复的潜力.
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