Highly dispersed amorphous ZnO on a petal-like porous silica-clay composite with enhanced antimicrobial properties

Deng, Hongkai; Chen, Huayao; Zhong, Ximing; Zhou, Hongjun; Zhan, Jinghui; Zhou, Xinhua

doi:10.1016/j.colsurfb.2022.112978

Cited by 11 publications

(2 citation statements)

References 37 publications

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“…ZnO has an intrinsic tendency to be agglomerated during practical application, resulting in reduced antibacterial activity. To overcome this issue, ZnO-loaded tetraethyl orthosilicate (TEOS)-MMT composite could improve antibacterial activity of the nano ZnO due to uniform dispersion on MMT [179].…”

Section: Zn/mmt By Hybrid Methodsmentioning

confidence: 99%

A Review on Montmorillonite-Based Nanoantimicrobials: State of the Art

et al. 2023

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One of the crucial challenges of our time is to effectively use metal and metal oxide nanoparticles (NPs) as an alternative way to combat drug-resistant infections. Metal and metal oxide NPs such as Ag, Ag2O, Cu, Cu2O, CuO, and ZnO have found their way against antimicrobial resistance. However, they also suffer from several limitations ranging from toxicity issues to resistance mechanisms by complex structures of bacterial communities, so-called biofilms. In this regard, scientists are urgently looking for convenient approaches to develop heterostructure synergistic nanocomposites which could overcome toxicity issues, enhance antimicrobial activity, improve thermal and mechanical stability, and increase shelf life. These nanocomposites provide a controlled release of bioactive substances into the surrounding medium, are cost effective, reproducible, and scalable for real life applications such as food additives, nanoantimicrobial coating in food technology, food preservation, optical limiters, the bio medical field, and wastewater treatment application. Naturally abundant and non-toxic Montmorillonite (MMT) is a novel support to accommodate NPs, due to its negative surface charge and control release of NPs and ions. At the time of this review, around 250 articles have been published focusing on the incorporation of Ag-, Cu-, and ZnO-based NPs into MMT support and thus furthering their introduction into polymer matrix composites dominantly used for antimicrobial application. Therefore, it is highly relevant to report a comprehensive review of Ag-, Cu-, and ZnO-modified MMT. This review provides a comprehensive overview of MMT-based nanoantimicrobials, particularly dealing with preparation methods, materials characterization, and mechanisms of action, antimicrobial activity on different bacterial strains, real life applications, and environmental and toxicity issues.

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Section: Zn/mmt By Hybrid Methodsmentioning

confidence: 99%

A Review on Montmorillonite-Based Nanoantimicrobials: State of the Art

et al. 2023

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“…ZnO-based nano-materials are proven materials for various applications, including antimicrobial action [63]. In biomedical applications, ZnO exhibits selective toxicity, biocompatibility, a reactive oxygen species-generating ability, and photochemical stability [64][65][66]. According to the U.S. Food and Drug Administration (21CFR182.8991), ZnO is a safe (GRAS) material.…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide-Based Nanomaterials for Microbiostatic Activities: A Review

Reda,

Park,

Park

2024

JFB

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The world is fighting infectious diseases. Therefore, effective antimicrobials are required to prevent the spread of microbes and protect human health. Zinc oxide (ZnO) nano-materials are known for their antimicrobial activities. Because of their distinctive physical and chemical characteristics, they can be used in medical and environmental applications. ZnO-based composites are among the leading sources of antimicrobial research. They are effective at killing (microbicidal) and inhibiting the growth (microbiostatic) of numerous microorganisms, such as bacteria, viruses, and fungi. Although most studies have focused on the microbicidal features, there is a lack of reviews on their microbiostatic effects. This review provides a detailed overview of available reports on the microbiostatic activities of ZnO-based nano-materials against different microorganisms. Additionally, the factors that affect the efficacy of these materials, their time course, and a comparison of the available antimicrobials are highlighted in this review. The basic properties of ZnO, challenges of working with microorganisms, and working mechanisms of microbiostatic activities are also examined. This review underscores the importance of further research to better understand ZnO-based nano-materials for controlling microbial growth.

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