Zhou Yuyang, Tang Ren-Cheng
National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Road, Suzhou 215123, China.
Polymers (Basel). 2018 Apr 4;10(4):404. doi: 10.3390/polym10040404.
Recently, there has been an increasing tendency towards the functionalization of silk using silver nanoparticles (AgNPs) to inhibit bacterial multiplication and disease spread. Considering environmental factors and sustainable development, the preparation of AgNPs using natural extracts is becoming a research hotspot. This study aims at fabricating colored and bioactive silk fabric using AgNPs synthesized by two representative flavonoids (quercetin and rutin). The effects of pH, temperature, and flavonoid concentration on the yield and particle size of AgNPs were studied. The color features and functionalities of the AgNPs-treated silk were also evaluated. The results showed that the AgNPs synthesized by quercetin were generated faster but displayed poorer size uniformity than those prepared by rutin. The as-prepared AgNPs showed good stability. The AgNPs prepared by rutin displayed a more uniform distribution on silk than those synthesized by quercetin. The antibacterial activity of AgNPs-treated silk remained over 90% against and even after 30 washing cycles. The antioxidant activity of the treated silk gradually decreased during washing. The present research proposes a facile and eco-friendly method for the preparation of AgNPs-coated silk material using flavonoids, which can serve as hygiene-related and medical textile materials.
最近，利用银纳米颗粒（AgNPs）对丝绸进行功能化以抑制细菌繁殖和疾病传播的趋势日益增强。考虑到环境因素和可持续发展，使用天然提取物制备AgNPs正成为一个研究热点。本研究旨在利用两种代表性黄酮类化合物（槲皮素和芦丁）合成的AgNPs制备有色且具有生物活性的丝绸织物。研究了pH值、温度和黄酮类化合物浓度对AgNPs产率和粒径的影响。还评估了经AgNPs处理的丝绸的颜色特征和功能。结果表明，槲皮素合成的AgNPs生成速度更快，但粒径均匀性比芦丁制备的AgNPs差。所制备的AgNPs表现出良好的稳定性。芦丁制备的AgNPs在丝绸上的分布比槲皮素合成的AgNPs更均匀。经AgNPs处理的丝绸对 和 的抗菌活性即使在30次洗涤循环后仍保持在90%以上。处理后的丝绸的抗氧化活性在洗涤过程中逐渐降低。本研究提出了一种利用黄酮类化合物制备AgNPs包覆丝绸材料的简便且环保的方法，该材料可作为与卫生相关的医用纺织材料。
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