基于纤维素的可持续纤维具有AIE驱动的I型光动力学抗菌活性,用于可重复使用的生物活性织品
Haijun Zhu1, Yunlu Liu2, Pan Zhang1
1Department of Plastic Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China.
Biomacromolecules
|August 18, 2025
概括
研究人员使用聚合诱导排放 (AIE) 光敏感剂开发了耐用,光激活的抗菌纤维素纤维. 这些可重复使用的纤维对细菌有很好的疗效,在洗后保持强度.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 摄影化学的使用.
背景情况:
- 开发有效的抗菌材料对于生物医学和织工业至关重要.
- 光动力学抗菌策略为传统方法提供了一个有希望的替代方案.
研究的目的:
- 通过结合聚合诱导排放 (AIE) 光敏感剂来制造光敏的抗菌纤维素纤维.
- 评估开发的纤维的抗菌疗效,机械性能和耐用性.
主要方法:
- 湿的策略是用I型AIE光敏化剂 (PS1) 对纤维素纤维进行补充.
- 纤维形态,机械性能和ROS生成的表征.
- 在白光照射下进行体外抗菌检测,对抗*黄金葡萄球菌*和*大肠杆菌.
- 洗耐用性测试,以评估保留的抗菌活性和抗拉强度.
主要成果:
- 添加PS1的纤维素纤维呈现出光滑的形态,并保持了机械强度.
- 在白光下,纤维表现出强大的抗菌活性,使细菌活力降低到10%以下,黑暗中毒性最小.
- 纤维在50个洗周期后保留了90%以上的抗拉强度和显著的抗菌功效.
结论:
- 建立了一种可扩展的方法来制造可重复使用的光动力学抗菌纤维素纤维.
- 开发的材料显示了先进的生物医学和织应用的潜力,需要持久的抗微生物特性.
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