Industrial Manufacturing Applications of Zinc Oxide Nanomaterials: A Comprehensive Study

Subhan, Abdus; Neogi, Newton; Choudhury, Kristi Priya

doi:10.3390/nanomanufacturing2040016

Cited by 36 publications

(28 citation statements)

References 216 publications

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“…The success for the use of these NSs is due to the UV filtration in sunscreens and skin creams, the antiplaque and antimalodor benefits for the oral products, and the biocidal effect on bacteria (Gram-positive and Gram-negative), fungi, and algae, which could favor wound healing. 20,21 The most common processes proposed for the synthesis of ZnO NSs are sol−gel, hydro/solvothermal, and biological routes. Moreover, electrochemical synthesis can be also employed to prepare ZnO nanomaterials 22 and is proving to be a suitable alternative method in terms of sustainability and scalability.…”

Section: Introductionmentioning

confidence: 99%

“…Due to their strong antimicrobial effect, , ZnO-based commercial products comprehend wound dressings (e.g., diabetic socks, Pishran Nassaji Ayandeh, Iran), dental fillers and toothpastes, antiacne beauty creams (e.g., 3M Touchless Care, USA; Dr. Bauman Zinc Cream, Germany), and smart food packaging (e.g., polypropylene or polyethylene or polycarbonate masterbatch with ZnO, Taban Andish Berjis, Iran; polypropylene granule, Rangdaneh sirjan, Iran), just to cite a few. The success for the use of these NSs is due to the UV filtration in sunscreens and skin creams, the antiplaque and antimalodor benefits for the oral products, and the biocidal effect on bacteria (Gram-positive and Gram-negative), fungi, and algae, which could favor wound healing. , The most common processes proposed for the synthesis of ZnO NSs are sol–gel, hydro/solvothermal, and biological routes. Moreover, electrochemical synthesis can be also employed to prepare ZnO nanomaterials and is proving to be a suitable alternative method in terms of sustainability and scalability.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Antimicrobial Applications of ZnO Nanostructures: A Review

Izzi

Sportelli

Torsi

et al. 2023

ACS Appl. Nano Mater.

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ZnO nanostructures (ZnO NSs) are able to provide significant antimicrobial activity, ensuring high biocompatibility, good chemical stability, and low toxicity. Such versatility has led to great success of this nanomaterial for antibacterial, antifungal, and, more recently, antiviral applications. However, methods for the preparation of ZnO NSs must be properly selected for their end use. Moreover, ZnO NSs can also be cytotoxic to some extent. In this context, this review emphasizes some aspects relevant to the preparation as well as to the antimicrobial use of ZnO NSs. In particular, a brief overview of the sol–gel, hydrothermal, biogenic, and electrochemical approaches proposed for their synthesis is presented, highlighting advantages/drawbacks of each route in terms of scalability, simplicity, and efficacy. Next, the application of ZnO NSs in several fields is reported. This is followed by a discussion of the antimicrobial role of ZnO NSs, where antimicrobial mechanisms of action, possible cell resistance, and cytotoxicity of ZnO NSs are highlighted. We also discuss the role of ZnO NSs against different biothreats, such as bacteria and viruses. The future of such nanomaterials in this application field is addressed in the final part.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Antimicrobial Applications of ZnO Nanostructures: A Review

Izzi

Sportelli

Torsi

et al. 2023

ACS Appl. Nano Mater.

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“…However, these pristine photocatalysts face the high electron–hole recombination rate and severe photocorrosion. Therefore, fabrication of the semiconducting heterojunctions is a preferred solution to improve the photocatalytic performance of zinc oxide. , The coupling of semiconductors not only enhances their individual characteristics but also facilitates efficient separation of the photogenerated hole–electron pairs, extends photoabsorption, and provides strong redox potential . In this view, to enhance the photocatalytic performance of ZnO through utilization of visible-light and reduction of charge−carrier recombination, efforts have been devoted to coupling of ZnO with other semiconductors. − …”

Section: Introductionmentioning

confidence: 99%

ZnO-ZnS Heterostructure as a Potent Photocatalyst in the Preparation of Some Substituted Chromenes and Remarkable Antigastrointestinal Cancer Activity

Liu,

Wang,

Sun

et al. 2023

ACS Omega

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The nanosized hybrid material ZnO-ZnS was synthesized using the well-known sol−gel method, as a simple and environmentally friendly procedure. The material was then characterized using various techniques including FESEM, TEM, UV−vis, DRS, EDS, XRD, and FT-IR. The characterization studies revealed the generation of ZnO-ZnS nanoparticles with a mean size of around 25 nm. Moreover, DRS analysis provided a band gap of 3.05 eV for this nanomaterial. The photocatalytic properties of the ZnO-ZnS heterojunction was investigated in the synthesis of some substituted chromenes under mild reaction conditions. The results showed that the prepared nanophotocatalyst exhibits significantly higher activity compared to its individual components (ZnO and ZnS) and provides 73−87% yield with 0.01 g of ZnO-ZnS after 30 min. In addition, the nanophotocatalyst demonstrated a high reusability in the desired condensation reaction. The enhanced photocatalytic activity of ZnO-ZnS can be attributed to the slower recombination of the electron−hole pairs in this semiconductor material. The reactive species OH • , • O 2 − , and h + are believed to play important roles in the photocatalytic system. Furthermore, cellular toxicity of ZnO-ZnS nanoparticles was evaluated on HCT-116 human gastrointestinal cancer cell line by MTT assay. The results proved a distinct reduction of cell viability, proofing cytotoxicity of nanoparticles on the cancer cells. This study highlights the potential of the nanoparticles against gastrointestinal cancer.

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“…ZnO nanoparticles are used as an inorganic physical sunscreen, because they are effective at reflecting and scattering UVA and UVB radiation while preventing skin irritation, and products containing them are pleasant to the touch [ 27 ]. Zinc oxide nanoparticles are widely used in cosmetic products, e.g., toothpaste, mouthwash, and sun creams [ 28 ]. Zinc oxide is generally recognized as safe (GRAS) by the FDA (Food and Drug Administration); it induces toxic effects at much higher concentrations than those that kill microbes [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Sublethal Concentrations of Zinc Oxide Nanoparticles on Bacillus cereus

2023

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Zinc oxide nanoparticles (ZnONPs), which are produced on a large scale, pose a potential threat to various environments because they can interact with the microbial populations found in them. Bacteria that are widespread in soil, water, and plant material include the Bacillus cereus group, which plays an important role in biodegradation and the nutrient cycle and is a major factor determining ecological balance. This group includes, among others, the foodborne pathogen B. cereus sensu stricto (herein referred to as B. cereus). The aim of this study was a comprehensive assessment of the effects of commercially available ZnONPs on B. cereus. The MIC (minimum inhibitory concentration) for B. cereus was 1.6 mg/mL, and the MBC (minimum bactericidal concentration) was 1.8 mg/mL. Growth of B. cereus was inhibited by a concentration of ZnONPs lower than or equal to MIC50. Concentrations from 0.2 to 0.8 mg/mL inhibited the growth of these bacteria in liquid media, induced symptoms of oxidative stress, and stimulated an environmental stress response in the form of biofilm and endospore formation. In addition, ZnONPs negatively affected the ability of the bacteria to break down the azo dye Evans Blue but enhanced the antimicrobial properties of phenolic compounds. Sublethal concentrations of ZnONPs generally decreased the activity of B. cereus cells, especially in the presence of phenolics, which indicates their potential toxicological impact, but at the same time they induced universal defence responses in these cells, which in the case of potential pathogens can hinder their removal.

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Industrial Manufacturing Applications of Zinc Oxide Nanomaterials: A Comprehensive Study

Cited by 36 publications

References 216 publications

Synthesis and Antimicrobial Applications of ZnO Nanostructures: A Review

Synthesis and Antimicrobial Applications of ZnO Nanostructures: A Review

ZnO-ZnS Heterostructure as a Potent Photocatalyst in the Preparation of Some Substituted Chromenes and Remarkable Antigastrointestinal Cancer Activity

Effect of Sublethal Concentrations of Zinc Oxide Nanoparticles on Bacillus cereus

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