A comparative analysis of antibacterial activity, dynamics, and effects of silver ions and silver nanoparticles against four bacterial strains

Li, Wen-Ru; Sun, Tairen; Zhou, Shao-Lu; Ma, Yun‐Bao; Shi, Qingshan; Xie, Xiaobao; Huang, Xiangyan

doi:10.1016/j.ibiod.2017.07.015

Cited by 114 publications

(73 citation statements)

References 36 publications

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“…Some essential aspects related to the specific antimicrobial characteristics of AgNPs implies their intrinsic physical and chemical properties, which include maintaining the nanoscale size of AgNPs, improving their dispersion and stability, and avoiding aggregation [ 52 ]. There are many studies which experimentally proved that the anti-pathogenic activity of AgNPs is better than that exhibited by silver ions [ 53 ].…”

Section: Antibacterial Characteristics Of Silver Nanoparticlesmentioning

confidence: 99%

Biomedical Applications of Silver Nanoparticles: An Up-to-Date Overview

et al. 2018

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During the past few years, silver nanoparticles (AgNPs) became one of the most investigated and explored nanotechnology-derived nanostructures, given the fact that nanosilver-based materials proved to have interesting, challenging, and promising characteristics suitable for various biomedical applications. Among modern biomedical potential of AgNPs, tremendous interest is oriented toward the therapeutically enhanced personalized healthcare practice. AgNPs proved to have genuine features and impressive potential for the development of novel antimicrobial agents, drug-delivery formulations, detection and diagnosis platforms, biomaterial and medical device coatings, tissue restoration and regeneration materials, complex healthcare condition strategies, and performance-enhanced therapeutic alternatives. Given the impressive biomedical-related potential applications of AgNPs, impressive efforts were undertaken on understanding the intricate mechanisms of their biological interactions and possible toxic effects. Within this review, we focused on the latest data regarding the biomedical use of AgNP-based nanostructures, including aspects related to their potential toxicity, unique physiochemical properties, and biofunctional behaviors, discussing herein the intrinsic anti-inflammatory, antibacterial, antiviral, and antifungal activities of silver-based nanostructures.

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Section: Antibacterial Characteristics Of Silver Nanoparticlesmentioning

confidence: 99%

Biomedical Applications of Silver Nanoparticles: An Up-to-Date Overview

et al. 2018

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“…Li et al [ 39 ] proved that silver ions have similar mode of action to silver nanoparticles but stronger antibacterial activity than AgNPs.…”

Section: Mode Of Antibacterial Action Of Silver (Moa)mentioning

confidence: 99%

Similarities and Differences between Silver Ions and Silver in Nanoforms as Antibacterial Agents

Kędziora

Speruda

Krzyżewska

et al. 2018

IJMS

353

290

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Silver is considered as antibacterial agent with well-known mode of action and bacterial resistance against it is well described. The development of nanotechnology provided different methods for the modification of the chemical and physical structure of silver, which may increase its antibacterial potential. The physico-chemical properties of silver nanoparticles and their interaction with living cells differs substantially from those of silver ions. Moreover, the variety of the forms and characteristics of various silver nanoparticles are also responsible for differences in their antibacterial mode of action and probably bacterial mechanism of resistance. The paper discusses in details the aforementioned aspects of silver activity.

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“…The lag phase, the delay of the exponential growth arising due to the changed growth conditions, has been a center of attention of many primary growth models [27][28][29]. This phase also seems to be induced when bacteria are treated at different sub-minimal inhibitory concentration (MIC) values of antibacterial substances [30][31][32][33], including silver ions and silver nanoparticles [11,[34][35][36]. Commonly used approaches for bacterial growth modeling are the empirical Gompertz [37] and the rate logistic (Verhulst) models [26].…”

Section: Introductionmentioning

confidence: 99%

Bacteria Exposed to Silver Nanoparticles Synthesized by Laser Ablation in Water: Modelling E. coli Growth and Inactivation

et al. 2020

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This study is aimed to better understand the bactericidal mode of action of silver nanoparticles. Here we present the production and characterization of laser-synthesized silver nanoparticles along with growth curves of bacteria treated at sub-minimal and minimal inhibitory concentrations, obtained by optical density measurements. The main effect of the treatment is the increase of the bacterial apparent lag time, which is very well described by the novel growth model as well as the entire growth curves for different concentrations. The main assumption of the model is that the treated bacteria uptake the nanoparticles and inactivate, which results in the decrease of both the nanoparticles and the bacteria concentrations. The lag assumes infinitive value for the minimal inhibitory concentration treatment. This apparent lag phase is not postponed bacterial growth. It is a dynamic state in which the bacterial growth and death rates are close in value. Our results strongly suggest that the predominant mode of antibacterial action of silver nanoparticles is the penetration inside the membrane.

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A comparative analysis of antibacterial activity, dynamics, and effects of silver ions and silver nanoparticles against four bacterial strains

Cited by 114 publications

References 36 publications

Biomedical Applications of Silver Nanoparticles: An Up-to-Date Overview

Biomedical Applications of Silver Nanoparticles: An Up-to-Date Overview

Similarities and Differences between Silver Ions and Silver in Nanoforms as Antibacterial Agents

Bacteria Exposed to Silver Nanoparticles Synthesized by Laser Ablation in Water: Modelling E. coli Growth and Inactivation

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