抗菌聚氨泡与四级化素作为链延长器用于鼻包装和血液静止
Kaidi Ding1, Wenlong Cong2, Ying Liu2
1Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China.
Acta biomaterialia
|May 4, 2024
概括
一种新的可降解聚氨泡敷料与四分化酸盐 (PUF-QCS) 显示出对鼻腔包装的承诺. 这种先进的材料有效地控制出血,预防感染,并帮助内镜鼻手术后的伤口愈合.
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
- 手术创新 在外科创新.
背景情况:
- 慢性鼻炎往往需要内镜手术,其中鼻包装对于血液静止和愈合至关重要.
- 现有的鼻膜包装材料在生物相容性,降解或预防感染方面可能存在局限性.
- 开发具有综合伤口愈合和感染控制特性的先进鼻包装是一种重要的临床需求.
研究的目的:
- 开发一种新型,可降解的聚氨泡敷料 (PUF-QCS) 结合四分化奇托 (QCS) 用于鼻腔包装应用.
- 评估开发的PUF-QCS的生物相容性,机械性能,液体吸收,降解率和抗菌功效.
- 与商业材料相比,在临床前的动物模型中评估PUF-QCS的静血和抗菌性能.
主要方法:
- 四元化酸盐 (QCS) 的合成,并将其纳入聚氨泡 (PUF) 作为交叉连接剂,以创建PUF-QCS.
- 关于PUF-QCS液体吸收,压力强度 (湿/干),降解速率和对S. aureus和E. coli的抗菌活性的表征.
- 在子鼻隔膜粘膜创伤模型中评估静血效果和抗菌活性.
主要成果:
- PUF-QCS2.0 %表现出极好的液体吸收 (19.4 g/g),强大的机械强度 (湿: 14.5 kPa,干: 7.7 kPa),以及适当的降解率 (在7天内8.3%).
- 该材料在7天内表现出持续的抗菌活性,在6小时内有效杀死金黄色细菌 (97.3%) 和大肠杆菌 (91.8%).
- 在体内研究表明,与商业海绵相比,PUF-QCS2.0 %显著减少了静血时间 (>50%) 和血液损失 (76.1%),在鼻腔中具有显著的抗菌作用.
结论:
- 开发的可降解聚氨泡敷料 (PUF-QCS) 集成了有效的鼻包装的基本特性,包括机械完整性,高吸收率,受控降解和强大的广泛抗菌活性.
- 与传统材料相比,PUF-QCS表现出优越的静血和感染预防能力,为术后恢复提供了显著的优势.
- 这种新型生物材料具有很大的潜力,可以通过增强出血控制和降低感染风险来改善内镜外科手术患者的治疗结果.
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