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多功能抗氧化剂自我愈合的水凝用于快速静血和腹腔大动脉伤口愈合
Shuai Gao1, Yue Wang1, Shuiyan Zhao1
1Heart Center, Women and Children's Hospital, Qingdao University, 6, Tongfu Road, Qingdao 266034, China.
ACS biomaterials science & engineering
|June 24, 2025
概括
一种新的可注射水凝 (DECG) 有效地阻止动脉出血并预防感染. 这种先进的生物材料显示出治疗严重创伤伤口和改善临床结果的前景.
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.
- 创伤护理 创伤护理
背景情况:
- 严重的创伤往往导致失控的动脉出血和伤口感染,挑战现有的组织粘合剂.
- 在复杂的创伤场景中,现有的材料缺乏有效的血液静止和伤口愈合所需的特性.
研究的目的:
- 开发一种可注射的水凝 (DECG),用于严重创伤,具有增强的粘附性,自我愈合性和抗菌性.
- 在体内评估DECG水凝的静血疗效和伤口愈合潜力.
主要方法:
- 开发一种可注射的水凝,使用e-polylysine,carboxymethyl chitosan和氧化德克斯 (DECG),结合基本纤维细胞生长因子 (bFGF).
- 水凝的特性,包括附着强度 (0.627 MPa),多孔性 (30 μm),快速凝 (10 秒),生物相容性,抗氧化剂和抗菌活性.
- 在体内评估使用大鼠腹腔大动脉损伤模型来评估血液静止和伤口愈合,分析COL-1,CD31,VEGF,α-SMA和PCNA等标志物.
主要成果:
- 该DECG水凝表现出快速粘附,自我愈合,优异的多孔性,生物相容性和抗菌性能.
- 达到高粘合强度 (0.627 MPa),能够承受显著的压力 (657.6 ± 18.71 mmHg),在10秒内快速固化.
- 在大鼠腹腔大动脉损伤模型中成功实现了静血,通过上调关键愈合标志物来促进动脉创伤愈合和减少动脉瘤形成.
结论:
- 开发的DECG水凝在血液静止和伤口愈合方面表现出卓越的性能,用于挑战动脉损伤.
- 它的独特特性满足了控制严重出血和治疗感染性伤口的临床需求.
- 在创伤管理和再生医学中,DECG水凝对临床应用具有显著的前景.
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