纳米纤维素基高吸水抗菌抗氧化双相凝胶的制备与性能
Preparation and Properties of Nanocellulose-based Superabsorbent Antibacterial and Antioxidant Biphasic Gels
张学澎 1王丽芳 1徐秋玉 1邱虹 1陈黎 1易珊 1张磊 2高洪国 2高艳春 2刘丽芳1
作者信息
- 1. 东华大学 纺织学院,上海 201600
- 2. 愉悦家纺有限公司,山东 滨州 256623
- 折叠
摘要
以纳米纤维素纤维为水凝胶骨架制备了具有高吸水率、抗菌性以及抗氧化性能的气凝胶-水凝胶双相凝胶,采用扫描电镜、傅里叶变换红外光谱、紫外可见光分光光度计等,表征了气凝胶-水凝胶双相凝胶的结构与性能.分析结果表明,气凝胶相具有优异的吸水性能,在 5 小时内吸水率达到1342.2%;气凝胶相吸水形成水凝胶相后释放单宁酸,对金黄葡萄球菌抑制率达到98.72%,对大肠杆菌抑制率达到83.62%,具有优异的抗菌特性;自由基清除效率为 91.89%,可有效抑制活性氧的生成,减少炎症发生,在伤口护理方面具有应用潜力.
Abstract
The aerogel-hydrogel biphasic gels with high water absorption,antibacterial and antioxidant properties were prepared by using nanocellulose fibers as the hydrogel skeleton.The structure and properties of the aerogel-hydrogel biphasic gels were characterized by scanning electron microscopy,Fourier transform infrared spectroscopy,ultraviolet-visible spectrophotometer.The analysis results showed that the aerogel phase had excel-lent water absorption properties and the water absorption rate reached 1342.2%within 5 hours.After the aerogel phase absorbed water to form the hydrogel phase,tannic acid was released,the inhibition effect on Staphylococ-cus aureus reached 98.72%and that on Escherichia coli reached 83.62%,demonstrating excellent antibacterial properties.The removal efficiency of free radical was 91.89%,which could effectively inhibit the generation of reactive oxygen species and reduce the occurrence of inflammation,showing application potential in wound care.
关键词
纳米纤维素纤维/双相水凝胶/单宁酸/抗菌抗氧化性能Key words
nanocellulose fibers/biphasic hydrogels/tannic acid/antibacterial and antioxidant properties引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据