Zinc Oxide Nanoparticles: Synthesis, Antimicrobial Activity and Food Packaging Applications

Espitia, Paula Judith Pérez; Soares, Nilda de Fátima Ferreira; Coimbra, Jane Sélia dos Reis; Andrade, Nélio José de; Cruz, Renato Souza; Medeiros, Éber Antônio Alves

doi:10.1007/s11947-012-0797-6

Cited by 1,065 publications

(529 citation statements)

References 83 publications

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“…Recently, metal nanoparticles have received increasing attention due to strong antimicrobial properties and low toxicity towards mammalian cells and have been already applied in food preservation, burn dressings, safe cosmetics, medical devices, water treatment and other range of products (Moritz and Geszke-Moritz 2013). Additional benefits coming from the use of inorganic nanoparticles are their improved stability in comparison with the traditional antimicrobial agents (Dutta et al 2012) and some of them even contain mineral elements essential to human (Roselli et al 2003; Espitia et al 2012). The main metal and metal oxide nanoparticles are based on silver, copper, copper oxide and zinc oxide (Moritz and Geszke-Moritz 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Amongst the wide range of the currently available metal nanoparticles, zinc oxide nanoparticles (ZnO NPs) possess superior durability, greater selectivity and heat resistance than others (He et al 2011). ZnO in nanoscale found potential applications in food preservation since ZnO NPs have been incorporated in polymeric matrices in order to provide antimicrobial activity to the packaging material (Espitia et al 2012). Additionally, ZnO NPs have also been tested as a potential coating agent on strawberries to control microbial contamination (Aponiene et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, ZnO NPs have also been tested as a potential coating agent on strawberries to control microbial contamination (Aponiene et al 2015). Few studies have focused on the toxicological impact of ZnO NPs as well as studies about biotransformation and elimination routes (Espitia et al 2012). However, ZnO is currently one of the five zinc compounds that are listed as a generally recognised as safe substance by the US Food and Drug Administration (FDA 2016).…”

Section: Introductionmentioning

confidence: 99%

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Assessing the efficacy of zinc oxide nanoparticles against Penicillium expansum by automated turbidimetric analysis

2017

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Public concerns about food safety have triggered a worldwide implementation of new legislations aimed at banning many of the most popular food conventional antifungal treatments. There is therefore an urgent need to identify novel and safer solutions to prevent fungal contamination of food. The antifungal effect of zinc oxide nanoparticles (ZnO NPs) against the postharvest pathogenic fungus Penicillium expansum has been investigated in this study. An automated turbidimetric assay, with a standard 96-well microplate, has been developed and optimised regarding the selection of the inoculum size in order to collect sequential optical density measurements. Data were processed by the updated version of the Lambert Pearson model to estimate the minimum inhibitory concentration and the non-inhibitory concentration values which were found to be 9.8 and 1.8 mM (i.e. 798 and 147 ppm), respectively. The current results show that turbidimetry is a reliable technique for assessing the antifungal activity of metal nanoparticles and that zinc oxide (ZnO) is an effective fungicide which can be potentially used to control food safety.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessing the efficacy of zinc oxide nanoparticles against Penicillium expansum by automated turbidimetric analysis

2017

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“…The ions are released into aquatic solutions (Fig. 2) (Guerard et al 2009, Espitia et al 2012. Furthermore, NPs have a catalytic effect, which generates the production of free radicals invading the thiol groups of amino acids.…”

Section: Toxicity Of Nanoparticles To Aquatic Microorganismsmentioning

confidence: 99%

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

Krzyżewska¹,

Kyzioł-Komosińska²,

Rosik-Dulewska³

et al. 2016

Archives of Environmental Protection

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Abstract:The aim of this paper is to present characteristics, toxicity and environmental behavior of nanoparticles (NPs) (silver, copper, gold, zinc oxide, titanium dioxide, iron oxide) that most frequently occur in consumer products. In addition, NPs are addressed as the new aquatic environmental pollutant of the 21 st century. NPs are adsorbed onto particles in the aquatic systems (clay minerals, fulvic and humic acids), or they can adsorb environmental pollutants (heavy metal ions, organic compounds). Nanosilver (nAg) is released from consumer products into the aquatic environment. It can threaten aquatic organisms with high toxicity. Interestingly, copper nanoparticles (Cu-NPs) demonstrate higher toxicity to bacteria and aquatic microorganisms than those of nanosilver nAg. Their small size and reactivity can cause penetration into the tissues and interfere with the metabolic systems of living organisms and bacterial biogeochemical cycles. The behavior of NPs is not fully recognized. Nevertheless, it is known that NPs can agglomerate, bind with ions (chlorides, sulphates, phosphates) or organic compounds. They can also be bound or immobilized by slurry. The NPs behavior depends on process conditions, i.e. pH, ionic strength, temperature and presence of other chemical compounds. It is unknown how NPs behave in the aquatic environment. Therefore, the research on this problem should be carried out under different process conditions. As for the toxicity, it is important to understand where the differences in the research results come from. As NPs have an impact on not only aquatic organisms but also human health and life, it is necessary to recognize their toxic doses and know standards/regulations that determine the permissible concentrations of NPs in the environment.Unauthenticated Download Date | 5/12/18 7:36 AM

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“…Among them, silver nanoparticles (AgNPs) have attracted most attention and merged up as a new generation of the antimicrobials with diverse medical applications [4]. On the other hand, zinc oxide nanoparticles (ZnONPs) is one of the five zinc compounds that are currently listed as generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (21CFR182.8991) [6]. Many studies have shown that ZnONPs, have selective toxicity to bacteria and only exhibit minimal effect on human cells, which recommend their prospective uses in agricultural and food industries.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric pressure plasma deposition of antimicrobial coatings on non-woven textiles

Nikiforov

Deng

Onyshchenko

et al. 2016

Eur. Phys. J. Appl. Phys.

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Abstract.A simple method for preparation of nanoparticle incorporated non-woven fabric with high antibacterial efficiency has been proposed based on atmospheric pressure plasma process. In this work direct current plasma jet stabilized by fast nitrogen flow was used as a plasma deposition source. Three different types of the nanoparticles (silver, copper and zinc oxide nanoparticles) were employed as antimicrobial agents. X-ray photoelectron spectroscopy (XPS) measurements have shown a positive chemical shift observed for Ag 3d 5/2 (at 368.1 eV) suggests that silver nanoparticles (AgNPs) are partly oxidized during the deposition. The surface chemistry and the antibacterial activity of the samples against Staphylococcus aureus and Escherichia coli were investigated and analyzed. It is shown that the samples loaded with nanoparticles of Ag and Cu and having the barrier layer of 10 nm characterized by almost 97% of bacterial reduction whereas the samples with ZnO nanoparticles provide 86% reduction of Staphylococcus aureus.

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Zinc Oxide Nanoparticles: Synthesis, Antimicrobial Activity and Food Packaging Applications

Cited by 1,065 publications

References 83 publications

Assessing the efficacy of zinc oxide nanoparticles against Penicillium expansum by automated turbidimetric analysis

Assessing the efficacy of zinc oxide nanoparticles against Penicillium expansum by automated turbidimetric analysis

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

Atmospheric pressure plasma deposition of antimicrobial coatings on non-woven textiles

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