酶增强的纤维素纳米纤维,奇托桑和氧化石墨烯多功能纳米复合材料,用于潜在的烧伤伤愈合应用
Manjila Adhikari1, Omar Mohammad Atta2, Mohmed Sobhy Kishta3
1Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
International journal of biological macromolecules
|September 21, 2024
概括
一种新的纤维素纳米纤维 (CNF) 纳米复合物与素 (Ch) 和石墨烯氧化物 (GO) 显示出对烧伤愈合的希望. 这种超吸收性材料提供了出色的生物相容性,机械稳定性和增强的抗菌特性,用于先进的伤口护理.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 伤口愈合 治愈 伤口愈合
背景情况:
- 医疗治疗中对先进生物材料的需求不断扩大.
- 需要具有增强性能的有效烧伤带.
- 当前伤口愈合材料的局限性.
研究的目的:
- 开发和评估一种由纤维素纳米纤维 (CNF),奇托 (Ch) 和石墨烯氧化物 (GO) 组成的新型纳米复合材料,用于治疗烧伤.
- 评估CNF-Ch-GO纳米复合材料的物理,化学,生物和抗菌性质.
- 研究酶结合的潜力,以提高抗微生物药物的有效性.
主要方法:
- 使用显微镜,ATR-FTIR,XRD和热重力学分析合成和描述CNF-Ch-GO纳米复合材料.
- 评估物理性能,包括吸收能力和机械稳定性 (Young的模量).
- 评估生物特性 (生物相容性,血液相容性) 和对大肠杆菌和黄金杆菌的抗菌活性,有或没有酶结合.
主要成果:
- CNF-Ch-GO纳米复合材料表现出多孔结构,并证实了化学成分和热稳定性.
- 该材料表现出超吸收性 (1781.7%的PBS吸收在2分钟内) 和良好的机械稳定性 (11.90MPa的Young模量).
- 观察到出色的生物相容性 (96.23%的细胞活力),血液相容性 (0.21%的血液溶解) 和与布相似的血液凝固. 酶结合显著提高了抗微生物根除率 (大肠杆菌和金黄色杆菌的92%).
结论:
- 合成的CNF-Ch-GO纳米复合材料具有理想的超吸收性,机械性,生物相容性和抗菌性质,用于伤口愈合.
- 酶结合进一步提高了抗微生物的有效性,使其成为先进的烧伤带的强有力的候选人.
- 这种多功能纳米复合材料显示了彻底改变烧伤治疗和管理的巨大潜力.
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