Mačák Lívia, Velgosova Oksana, Múdra Erika, Vojtko Marek, Dolinská Silvia
Institute of Materials and Quality Engineering, Faculty of Materials Metallurgy and Recycling, Technical University of Kosice, Letná 9/A, 042 00 Košice, Slovakia.
Division of Ceramic and Non-Metallic Systems, Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia.
Polymers (Basel). 2023 Feb 28;15(5):1238. doi: 10.3390/polym15051238.
A biological method was successfully applied to synthesize spherical silver nanoparticles (AgNPs) while using the extract of lavender (Ex-L) (lat. ) as the reducing and stabilizing agent. The produced nanoparticles were spherical with an average size of 20 nm. The AgNPs' synthesis rate confirmed the extract's excellent ability to reduce silver nanoparticles from the AgNO solution. The presence of good stabilizing agents was confirmed by the excellent stability of the extract. Nanoparticles' shapes and sizes did not change. UV-Vis absorption spectrometry, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) were used to characterize the silver nanoparticles. The silver nanoparticles were incorporated into the PVA polymer matrix by the "ex situ" method. The polymer matrix composite with AgNPs was prepared in two ways: as a composite film and nanofibers (nonwoven textile). The anti-biofilm activity of AgNPs and the ability of AgNPs to transfer toxic properties into the polymer matrix were proved.
一种生物方法成功应用于合成球形银纳米颗粒（AgNPs），同时使用薰衣草提取物（Ex-L）作为还原剂和稳定剂。所制备的纳米颗粒呈球形，平均尺寸为20纳米。AgNPs的合成速率证实了该提取物具有从AgNO溶液中还原银纳米颗粒的出色能力。提取物出色的稳定性证实了存在良好的稳定剂。纳米颗粒的形状和尺寸未发生变化。采用紫外-可见吸收光谱法、傅里叶变换红外光谱法（FTIR）、透射电子显微镜法（TEM）和扫描电子显微镜法（SEM）对银纳米颗粒进行表征。通过“非原位”方法将银纳米颗粒掺入PVA聚合物基体中。含有AgNPs的聚合物基体复合材料通过两种方式制备：作为复合膜和纳米纤维（无纺布）。证明了AgNPs的抗生物膜活性以及AgNPs将毒性特性转移到聚合物基体中的能力。
