Nguyen Ngoc-Thang, Vo Thi-Lan-Huong
Department of Textile Material and Chemical Processing, School of Textile-Leather and Fashion, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi 11615, Vietnam.
Department of Fibre and Textile Technology, Hanoi Industrial Textile Garment University, Hanoi 12411, Vietnam.
Polymers (Basel). 2022 Jun 14;14(12):2409. doi: 10.3390/polym14122409.
The current work presented a green synthetic route for the fabrication of silver nanoparticles obtained from aqueous solutions of silver nitrate using L. leaf extract (Col) as a reducing and capping agent for the first time. The bio-synthesized silver nanoparticles (AgCol) were investigated using UV-visible spectroscopy (UV-vis), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermal gravimetric analysis (TGA). The obtained data demonstrated that AgCol in spherical shape with an average size of 28.5 nm were highly crystalline and well capped by phytocompounds from the Col extract. Moreover, the bio-synthesized AgCol also exhibited the effective antibacterial activities against six pathogenic bacteria, including (), (), (), (), () (). The AgCol were applied as an antibacterial finishing agent for viscose fabric using a pad-dry curing technique. The AgCol-treated viscose fabrics exhibited a good synergistic antimicrobial activity against and bacteria. Furthermore, the silk fibroin regenerated from cocoon waste was utilized as an ecofriendly binder for the immobilization of AgCol on the viscose fabric. Thus, the antimicrobial efficacy of the AgCol and fibroin modified viscose fabric still reached 99.99% against the tested bacteria, even after 30 washing cycles. The colorimetric property, morphology, elemental composition, and distribution of AgCol on the treated fabrics were investigated using several analysis tools, including colorimetry, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), atomic absorption spectroscopy (AAS), Kjeldahl, and FTIR. Because of the excellent antimicrobial efficiency and laundering durability, as well as the green synthesis method, the AgCol and fibroin modified viscose fabric could be utilized as an antibacterial material in sportswear and medical textile applications.
当前的工作首次提出了一种绿色合成路线，用于制备从硝酸银水溶液中获得的银纳米颗粒，使用L.叶提取物（Col）作为还原剂和封端剂。使用紫外可见光谱（UV-vis）、透射电子显微镜（TEM）、X射线衍射（XRD）、傅里叶变换红外光谱（FTIR）和热重分析（TGA）对生物合成的银纳米颗粒（AgCol）进行了研究。获得的数据表明，平均尺寸为28.5nm的球形AgCol具有高度结晶性，并且被Col提取物中的植物化合物很好地包覆。此外，生物合成的AgCol还对六种致病细菌表现出有效的抗菌活性，包括（）、（）、（）、（）、（）、（）。使用轧染焙烘技术将AgCol用作粘胶织物的抗菌整理剂。经AgCol处理的粘胶织物对和细菌表现出良好的协同抗菌活性。此外，从蚕茧废料中再生的丝素蛋白被用作一种环保型粘合剂，用于将AgCol固定在粘胶织物上。因此，即使经过30次洗涤循环，AgCol和丝素蛋白改性的粘胶织物对测试细菌的抗菌效果仍达到99.99%。使用多种分析工具，包括比色法、扫描电子显微镜（SEM）、能量色散X射线光谱（EDX）、原子吸收光谱（AAS）、凯氏定氮法和FTIR，对处理过的织物上AgCol的比色性能、形态、元素组成和分布进行了研究。由于具有优异的抗菌效率和洗涤耐久性，以及绿色合成方法，AgCol和丝素蛋白改性的粘胶织物可作为抗菌材料用于运动服装和医用纺织品应用。
