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一锅还原法制备具有抗菌和抗生物膜活性的银纳米粒子/硝酸纤维素复合表面涂层

One-Pot Reducing Agent-Free Synthesis of Silver Nanoparticles/Nitrocellulose Composite Surface Coating with Antimicrobial and Antibiofilm Activities.

机构信息

Dept. of Chemistry, University of Sri Jayewardenepura, Nugegoda, Sri Lanka.

Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Japan.

出版信息

Biomed Res Int. 2021 Mar 27;2021:6666642. doi: 10.1155/2021/6666642. eCollection 2021.

DOI:10.1155/2021/6666642
PMID:33855077
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8019633/
Abstract

Nitrocellulose with silver nanoparticle (AgNP/NC) composite was prepared using Ag(CHCO) and nitrocellulose without any reducing agent. The composite materials synthesized were spray coated onto glass substrates to obtain thin films. The AgNPs/NC composites were characterized by ultraviolet-visible, Fourier transform infrared, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The antimicrobial activity of AgNPs/NC composite was investigated by tube method and time-kill kinetic studies against three microbial species, including (ATCC 27853), (ATCC 25923), and (ATCC 10231). The antibiofilm activities were qualitatively determined against all three organisms. Prepared AgNPs/NC films exhibited good antimicrobial activity and significant inhibition of biofilm development against all three microbial species. The effective dispersion of AgNPs/NC in biofilm was responsible for the significant antibiofilm activity of the prepared material. The reported AgNPs/NC composite can be used as coating additive in bacteriocidal paint which can be applied onto surfaces such as in healthcare environments.

摘要

载银纳米纤维素（AgNP/NC）复合材料是通过 Ag(CHCO) 和无任何还原剂的硝酸纤维素制备的。将合成的复合材料喷涂到玻璃基板上以获得薄膜。通过紫外-可见分光光度法、傅里叶变换红外光谱、X 射线光电子能谱、扫描电子显微镜和透射电子显微镜对 AgNP/NC 复合材料进行了表征。通过管法和时间杀灭动力学研究，对三种微生物（包括 ATCC 27853、ATCC 25923 和 ATCC 10231）对 AgNP/NC 复合材料的抗菌活性进行了研究。对所有三种生物进行了定性的抗生物膜活性测定。所制备的 AgNP/NC 薄膜表现出良好的抗菌活性，并对所有三种微生物的生物膜形成有显著的抑制作用。AgNP/NC 在生物膜中的有效分散是制备材料具有显著抗生物膜活性的原因。所报道的 AgNP/NC 复合材料可用作杀菌涂料中的涂层添加剂，可应用于医疗保健环境等表面。

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