Nb2C强化水凝微针作为双ROS清理平台,以促进糖尿病伤口愈合
Zhi Zheng1, Heyan Huang1, Xiangru Chen1
1Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, Hubei, P. R. China.
Advanced healthcare materials
|February 4, 2026
概括
这项研究介绍了一种使用碳化和黄治疗糖尿病伤口的双ROS清理微针系统. 该创新平台通过减少炎症和促进组织再生来加速伤口愈合.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 过度的活性氧物种 (ROS) 生产会通过引起炎症和抑制血管生成,损害糖尿病伤口愈合.
- 目前的治疗方法很难有效地消除伤口微环境中的ROS.
- 糖尿病性伤口由于延迟愈合和易受感染而构成重大临床挑战.
研究的目的:
- 为增强糖尿病伤口愈合开发一个双ROS清理平台.
- 为了研究碳化物 (Nb2C) 和黄素 (Cur) 在水凝微针 (MN) 系统中的协同作用.
- 为耐火性糖尿病伤口提供一种新的治疗策略.
主要方法:
- 使用Nb2C纳米粒子和黄素 (Cur) 制造UV交联的水凝微针 (MNs).
- 利用黄素作为主要的细胞外ROS清除剂和Nb2C作为通过近红外 (NIR) 辐射激活的二次细胞内ROS清除剂.
- 评估了该平台在促进巨细胞再极化,血管生成和抗菌作用方面的有效性.
- 在体内评估了对全厚糖尿病伤口愈合的治疗效果.
主要成果:
- 在Nb2C-CurCD-GelMA MNs展示了一种双重ROS清理机制,中和细胞外和细胞内ROS.
- 尼尔射线照射增强了黄素的释放,并激活了Nb2C的过氧化酶模仿活性,用于协同消除ROS.
- 该系统有效降低了炎症,促进了M1到M2巨细胞再极化,并促进了血管生成.
- 在体内研究表明,使用Nb2C-CurCD-GelMA MNs显著加快了全厚糖尿病伤口的愈合.
结论:
- 开发的Nb2C-CurCD-GelMA MNs为糖尿病伤口提供了复杂而安全的治疗方法.
- 双重ROS清理和NIR增强的方法有效平衡氧化微环境,促进愈合.
- 这一策略有望通过协调抗炎和再生过程来管理复杂的,无法愈合的糖尿病伤口.
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