Manufacturing of Ag/Ag2O nanocomposites for anti-quorum sensing: A Safe and green approach

IF 1.7 4区材料科学 Q3 CRYSTALLOGRAPHY

Journal of Crystal Growth Pub Date : 2024-12-09 DOI:10.1016/j.jcrysgro.2024.128041

Hatice Aysun Mercimek Takcı , Deniz Kadir Takcı , Sedef Icigen , Hasim Ozkan , Sabri Erdi Duman , Tahsin Huner

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引用次数: 0

Abstract

Green synthesis of silver nanoparticles is the most phenomena topic that has affected all aspects of nanotechnology research, especially modern material sciences. The current study focuses on using endemic Hypercium capitatum in silver nanocomposite synthesis and investigating quorum quenching effects on Choromobacter violaceum and Pseudomonas aeruginosa. The strong absorption SPR peak appeared at about 432 nm. The optical bandgap of Ag/Ag₂O nanocomposites was predicted as about 1.95 eV by Tauc’s plot equation. The size distribution of Ag/Ag₂O nanocomposites with spherical shape ranged from 20.55 nm to 30.76 nm by SEM images. XRD findings confirmed the pure crystalline nature of biogenic Ag/Ag₂O nanocomposites with an average 30 nm size. FTIR spectrum indicated the presence of bioactive functional components responsible for the bioreduction of bulk AgNO₃ to Ag/Ag₂O nanocomposites. The Ag/Ag₂O nanocomposites effectively inhibited the pyocyanin and violacein-producing controlled by quorum sensing. This could be a promising achievement in a struggle with many persistent and dynamic pathogens.

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银纳米粒子的绿色合成是影响纳米技术研究，特别是现代材料科学各个方面的最热门话题。本研究的重点是利用当地特有的金丝桃（Hypercium capitatum）合成银纳米复合材料，并研究其对暴力毛杆菌（Choromobacter violaceum）和铜绿假单胞菌（Pseudomonas aeruginosa）的定量淬灭效应。在约 432 纳米波长处出现了强吸收 SPR 峰。根据陶氏曲线方程预测，Ag/Ag2O 纳米复合材料的光带隙约为 1.95 eV。通过扫描电镜图像，Ag/Ag2O 纳米复合材料的尺寸分布为 20.55 纳米至 30.76 纳米的球形。XRD 研究结果证实了生物银/氧化银纳米复合材料的纯晶体性质，其平均尺寸为 30 nm。傅立叶变换红外光谱表明，生物活性功能成分的存在是将块状 AgNO3 生物还原成 Ag/Ag2O 纳米复合材料的原因。Ag/Ag2O 纳米复合材料通过法定人数感应，有效地抑制了产生焦花青素和暴力素的受控生物。在与许多顽固和动态病原体的斗争中，这可能是一项很有希望的成就。

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来源期刊

Journal of Crystal Growth 化学-晶体学

CiteScore

3.60

自引率

11.10%

发文量

373

审稿时长

65 days

期刊介绍： The journal offers a common reference and publication source for workers engaged in research on the experimental and theoretical aspects of crystal growth and its applications, e.g. in devices. Experimental and theoretical contributions are published in the following fields: theory of nucleation and growth, molecular kinetics and transport phenomena, crystallization in viscous media such as polymers and glasses; crystal growth of metals, minerals, semiconductors, superconductors, magnetics, inorganic, organic and biological substances in bulk or as thin films; molecular beam epitaxy, chemical vapor deposition, growth of III-V and II-VI and other semiconductors; characterization of single crystals by physical and chemical methods; apparatus, instrumentation and techniques for crystal growth, and purification methods; multilayer heterostructures and their characterisation with an emphasis on crystal growth and epitaxial aspects of electronic materials. A special feature of the journal is the periodic inclusion of proceedings of symposia and conferences on relevant aspects of crystal growth.