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基于动态共价键的MMP响应纳米粒子载荷,可注射,粘合,自愈的凝伤口包裹
Liwei Zhang1, Bingqing Luo1,2, Zhen An1
1CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
Biomacromolecules
|November 11, 2023
概括
这项研究开发了一种可注射,自我愈合的水凝伤口包裹,使用氧化氨酸,碳甲基和原. 这种先进的带,装载着黄素纳米颗粒,在动物模型中显著改善了伤口修复.
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.
- 伤口愈合 治愈 伤口愈合
背景情况:
- 开发具有可注射性,自我愈合性和组织粘附性等多种功能的先进伤口包裹对于有效的皮肤伤口管理至关重要.
- 现有的水凝敷料往往在实现最佳愈合所需的综合性质方面面临限制.
- 自然聚合物的组合为创造生物相容和有效的伤口愈合材料提供了一个有希望的途径.
研究的目的:
- 构建一种可注射和粘合的水凝伤口包裹,具有自我愈合和增强的皮肤伤口愈合能力.
- 结合含有黄素的纳米颗粒来控制药物释放和加速伤口修复.
- 评估开发的水凝系统的生物相容性,组织粘附性和体内疗效.
主要方法:
- 合成了一种多巴胺功能化的氧化 hialuronic 酸/carboxymethyl chitosan/collagen (AHADA/CCS/Col) 水凝.
- 利用了希夫动态键和银离子协调,以获得可注射性和自我愈合性.
- 准备的含有黄素的凝纳米粒子 (Cur@Gel NPs) 对矩阵金属蛋白酶 (MMPs) 产生反应,以控制释放.
主要成果:
- 由于动态键和功能组,AHADA/CCS/Col水凝表现出良好的注射性,自我愈合性和组织粘附性.
- 在体外研究证实了良好的生物相容性和促进细胞增殖.
- 在动物实验中,用Cur@Gel NPs装载的水凝显示出优异的伤口修复,突出显示加快愈合.
结论:
- 开发的可注射和自我愈合的AHADA/CCS/Col水凝敷料对伤口愈合应用具有有前途的特性.
- 纳入MMP响应的曲素纳米颗粒通过可控的药物输送来提高治疗效果.
- 这种多功能水凝具有重要的潜力,作为一种先进的伤口,可以促进更快,更有效的皮肤伤口修复.
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