一种用于生物医学应用的多功能硫化释放微粒/水凝混合体
Saba Sayyareh1, Reza Karimi-Soflou1, Akbar Karkhaneh1
1Department of Biomedical Engineering, Amirkabir University of Technology (Tehran polytechnic), Iran.
International journal of pharmaceutics
|September 10, 2025
概括
这项研究开发了一种混合微粒/水凝系统,用于持续释放硫化 (H2S),在H2S水平较低时对于组织再生至关重要. 该系统有效地在五天内提供H2S,以支持缺少组织的愈合.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 再生医学是一种再生医学.
背景情况:
- 硫化 (H2S) 是一种重要的气传递物,调节重要生理功能.
- 病理状况通常涉及降低H2S水平,阻碍组织愈合和再生.
- 需要一种受控的H2S输送系统来恢复受损组织中的生理水平.
研究的目的:
- 开发一种混合微粒和水凝系统,以持续释放H2S.
- 通过调节H2S水平来研究该系统在支持组织再生方面的潜力.
主要方法:
- 合成的多糖醇脂酸盐-聚乙烯甘醇 (PGSE) 合聚合物微粒含有硫化 (NaHS).
- 开发了一种导电性 κ-卡拉基安-多聚 (KCPS) 聚合物,集成到 GelMA/PEGDA 水凝中.
- 描述了微粒和水凝的特性,包括H2S释放动力学,膨胀率,导电性和抗氧化活性.
主要成果:
- 微粒在5天内表现出持续的H2S释放,封装效率为52.16%.
- 复合水凝 (GEPD/KCPS) 的膨胀比为4.4,导电率为13.21mS/m,抗氧化活性为21.5%.
- 该系统在5天内实现了92.33%的累积H2S释放.
结论:
- 一个新的混合微粒/水凝系统有效地以持续的方式提供H2S.
- 这种多功能系统对电感应组织的应用非常有希望,因为这些组织需要H2S进行再生.
- 开发的系统解决了在受损愈合过程中局部H2S调节的需求.
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