Comparison of Escherichia coli Responses to Different Silver Nanoparticles with Different Particle Sizes and Surface Coatings

IF 2.7 4区材料科学 Q3 CHEMISTRY, PHYSICAL

Particle & Particle Systems Characterization Pub Date : 2024-07-24 DOI:10.1002/ppsc.202400105

Qiuran Liu, Yuqiong Sun, Mengmeng Zhang, Jing Hou

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引用次数: 0

Abstract

AgNPs are widely used for their excellent antimicrobial properties, whereas the cytotoxicity they possess makes them an unignorable environmental problem. Considering the impact of particle size and surface coating on the antibacterial properties, four types of AgNPs are selected: citrate‐coated 20 nm (C20), polyvinylpyrrolidone‐coated 20 nm (P20), citrate‐coated 100 nm (C100), and polyvinylpyrrolidone‐coated 100 nm (P100) AgNPs. All four AgNPs significantly affect the ribosome pathway, with stronger binding of large and small subunits. 20 nm and 100 nm AgNPs both affected the biosynthesis and metabolism of several amino acids (including arginine, glycine, serine, threonine, glyoxylic acid, and dicarboxylic acid). P20 and C100 exposure affected bacterial chemotaxis and flagellar motility. This study preliminarily explained the response mechanism of E. coli to AgNPs with different properties, which provided a theoretical basis for predicting the response mechanism of E. coli to metal nanoparticles with similar properties.

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比较大肠杆菌对不同粒径和表面涂层的银纳米粒子的反应

AgNPs因其卓越的抗菌性能而被广泛应用，但其所具有的细胞毒性使其成为一个难以解决的环境问题。考虑到粒径和表面涂层对抗菌性能的影响，我们选择了四种类型的 AgNPs：柠檬酸盐涂层 20 nm（C20）、聚乙烯吡咯烷酮涂层 20 nm（P20）、柠檬酸盐涂层 100 nm（C100）和聚乙烯吡咯烷酮涂层 100 nm（P100）。所有四种 AgNPs 都对核糖体通路有明显影响，对大亚基和小亚基的结合力更强。20 纳米和 100 纳米 AgNPs 都影响了几种氨基酸（包括精氨酸、甘氨酸、丝氨酸、苏氨酸、乙醛酸和二羧酸）的生物合成和代谢。接触 P20 和 C100 会影响细菌的趋化性和鞭毛运动。本研究初步解释了大肠杆菌对不同性质的AgNPs的反应机制，为预测大肠杆菌对性质相似的金属纳米粒子的反应机制提供了理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Particle & Particle Systems Characterization 工程技术-材料科学：表征与测试

CiteScore

5.50

自引率

0.00%

发文量

114

审稿时长

3.0 months

期刊介绍： Particle & Particle Systems Characterization is an international, peer-reviewed, interdisciplinary journal focusing on all aspects of particle research. The journal joined the Advanced Materials family of journals in 2013. Particle has an impact factor of 4.194 (2018 Journal Impact Factor, Journal Citation Reports (Clarivate Analytics, 2019)). Topics covered include the synthesis, characterization, and application of particles in a variety of systems and devices. Particle covers nanotubes, fullerenes, micelles and alloy clusters, organic and inorganic materials, polymers, quantum dots, 2D materials, proteins, and other molecular biological systems. Particle Systems include those in biomedicine, catalysis, energy-storage materials, environmental science, micro/nano-electromechanical systems, micro/nano-fluidics, molecular electronics, photonics, sensing, and others. Characterization methods include microscopy, spectroscopy, electrochemical, diffraction, magnetic, and scattering techniques.