释放氧化的光交联化酸盐冷凝
Herllan Vieira de Almeida1, Laura Caetano Escobar da Silva1, Marcelo Ganzarolli de Oliveira1
1Institute of Chemistry, University of Campinas, UNICAMP, Campinas, SP, Brazil.
Nitric oxide : biology and chemistry
|April 5, 2024
概括
研究人员开发了多孔酸盐冷凝,在水化后释放氧化 (NO). 这些新型生物材料在医疗应用中具有局部NO输送的潜力.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 纳米技术 纳米技术
背景情况:
- 酸盐冷凝具有多孔结构,非常适合生物材料应用,需要水化触发反应.
- 释放氧化 (NO) 的生物材料对于各种生物医学应用至关重要,NO的释放通常取决于材料的水分.
- 开发有效的NO释放平台需要具有可控孔隙性和快速吸水性的材料.
研究的目的:
- 为了设计能够通过快速水化引发的氧化 (NO) 释放的酸盐冷凝 (CS).
- 将CS与S-nitrosothiols (SNO) 功能化,以创建一个NO释放系统.
- 为了研究功能化酸盐冷凝中的NO释放动力学.
主要方法:
- 酸盐被甲基化和光交联,然后冷干燥以创建一个多孔的冷凝土结构.
- 通过使用碳胺介导反应,通过S-nitrosothioglycolic 酸 (TGA ((SNO)) 和S-nitrosomercaptosuccinic 酸 (MSA ((SNO)) 功能化了多孔的基托冷凝.
- 化学发光测量用于量化吸收水后的氧化释放率.
主要成果:
- 开发的酸盐冷凝呈现出多孔形态,细胞相互连接,壁厚在340-881纳米之间.
- 功能化冷凝 (CS-TGA ((SNO) 和CS-MSA ((SNO)) 显示在水化后自发释放NO.
- 测量了特定的NO释放率:CS-TGA (SNO) 的3.34 × 10−2 nmol mg−1 min−1和CS-MSA (SNO) 的1.27 × 10−1 nmol mg−1 min−1.
结论:
- 该研究成功地开发了多孔酸盐冷凝,与S-nitrosothiols功能化,用于NO输送.
- 快速水化触发的NO释放机制为生物医学应用中的局部NO输送开辟了新的途径.
- 这些功能化酸盐冷凝为先进的治疗策略提供了一个有前途的平台.
相关概念视频
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Table 1: Properties of the alkali metals
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