Antiviral leather: A functional coating based on SiO2-AgNPs to eliminate pathogens

Marques, Gleison N.; Reis, Roberta Y.N.; Ribeiro, Lara K.; Simões, Luiz G.P.; Minozzi, Daniel T.; Andrés, Juan; Assis, Marcelo; Mascaro, Lucia H.; Longo, Elson

doi:10.1016/j.jece.2023.110919

Cited by 6 publications

(5 citation statements)

References 46 publications

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“…For instance, Marques et al functionalized a bovine leather sample with a SiO 2 −Ag nanoparticle composite, which exhibited not only antibacterial activity, with a 99.99% reduction of S. aureus bacteria after 24 h, but also remarkable antiviral properties, with a 99.93% inactivation of the SARS-CoV-2 virus after 30 min. 26 Despite the well-established role of Ag nanoparticles as effective environmental disinfectants, numerous studies have also been conducted on the toxicological aspects and the diverse mechanisms of cytotoxicity, as well as the protracted effects on human physiology. 73 According to the World Health Organization (WHO), an intake of approximately 10 g of silver over a lifetime is devoid of observable adverse effects in humans.…”

Section: Factorsmentioning

confidence: 99%

“…For instance, Marques et al functionalized a bovine leather sample with a SiO 2 –Ag nanoparticle composite, which exhibited not only antibacterial activity, with a 99.99% reduction of S. aureus bacteria after 24 h, but also remarkable antiviral properties, with a 99.93% inactivation of the SARS-CoV-2 virus after 30 min …”

Section: Impact Of Nanoparticle Use In Leather Finishing On Human Hea...mentioning

confidence: 99%

“…Notably, regarding this process, several studies − have highlighted the application of metallic nanoparticles, such as silver (Ag), to the tanned leather surface in virtue of their enhanced antimicrobial features, also in combination with other nanoparticles, e.g., with TiO 2 . , Moreover, titanium dioxide (TiO 2 ) and silicon dioxide (SiO 2 ) nanoparticles applied on the leather surface can give superior self-cleaning characteristics and significantly enhance thermal resistance. − …”

Section: Introductionmentioning

confidence: 99%

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Nanoparticle Usage in Leather Processing: Worker Safety and Health

Cirillo,

Iuliano,

Scarpa

et al. 2024

ACS Chem. Health Saf.

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The focus on the leather market has recently been on the rise due to the global increase in demand for leather products, driven by rising disposable income levels and improving standards of living among the expanding middle-class population. To enhance the performance of the final leather product, we have employed nanoparticles (NPs) across various stages of leather manufacturing. Specifically, in the finishing process�the ultimate stage of leather production�numerous studies have underscored the significance of Ag, TiO 2 , and SiO 2 NPs in significantly enhancing various characteristics of leather. On the other hand, the rapid growth in the application of NPs to leather finishing, and more in general in the leather industry, has occurred concomitantly with increased attention toward potential risks associated with their usage in biological systems and ecosystems. Given these considerations, the objective of this critical review is to provide a detailed and thorough analysis of the factors influencing the toxicity and cytotoxicity of nanoparticles commonly adopted in the leather finishing stage, with particular emphasis on Ag, TiO 2, and SiO 2 NPs, along with their effects on the safety and health of workers. Moreover, the following study aims to identify necessary precautions and safety measures that the leather industry should implement when handling nanoparticles during the finishing stage.

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Section: Factorsmentioning

confidence: 99%

Section: Impact Of Nanoparticle Use In Leather Finishing On Human Hea...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nanoparticle Usage in Leather Processing: Worker Safety and Health

Cirillo,

Iuliano,

Scarpa

et al. 2024

ACS Chem. Health Saf.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…The growing global challenge related to the increase and spread of new diseases highlights the crucial importance of adopting innovative approaches to contain the spread of pathogens. 1 In this context, the use of antimicrobial plastic materials has emerged as a promising strategy. These plastics, impregnated with antimicrobial agents, demonstrate the ability to inhibit the growth and proliferation of undesirable microorganisms on various surfaces.…”

Section: Introductionmentioning

confidence: 99%

Unveiling Antimicrobial Properties and Crystallization Induction in PLA Using α-Ag₂WO₄ Nanoparticles

Onue,

Ribeiro,

Gonçalves

et al. 2024

ACS Appl. Polym. Mater.

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In this study, α-Ag 2 WO 4 nanoparticles were synthesized and then immobilized within the poly(lactic acid) (PLA) matrix at varying concentrations (0.5, 1.0, and 3.0%). X-ray diffraction revealed the successful incorporation of α-Ag 2 WO 4 nanoparticles into the PLA matrix without the presence of undesired phases. Furthermore, crystallinity results indicated that the particles did not have the potential to act as nucleating agents under quiescent conditions, but induction in crystallization was observed under nonquiescent conditions. Rheology analysis demonstrated an increase in complex viscosity values for all samples containing α-Ag 2 WO 4 when compared to those of the pure polymer, indicating good dispersion and distribution. The antimicrobial activity of the composites was particularly effective against Escherichia coli and at higher concentrations for Staphylococcus aureus and Candida albicans after 16 h of contact. The antimicrobial efficiency was associated with the ability of α-Ag 2 WO 4 to generate reactive oxygen species (ROS) and the ionic release of Ag + , causing irreversible damage to the membranes of these microorganisms. This type of study sheds light on the development of PLA platforms with potential antimicrobial activity and increased crystallization capacity under the employed processing conditions.

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Electrocatalytic contributions from Brazilian research groups for clean energy conversion and environmental remediation

Medina,

Carvalho,

da Silva

et al. 2024

J Solid State Electrochem

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Antiviral leather: A functional coating based on SiO2-AgNPs to eliminate pathogens

Cited by 6 publications

References 46 publications

Nanoparticle Usage in Leather Processing: Worker Safety and Health

Nanoparticle Usage in Leather Processing: Worker Safety and Health

Unveiling Antimicrobial Properties and Crystallization Induction in PLA Using α-Ag₂WO₄ Nanoparticles

Electrocatalytic contributions from Brazilian research groups for clean energy conversion and environmental remediation

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Antiviral leather: A functional coating based on SiO2-AgNPs to eliminate pathogens

Cited by 6 publications

References 46 publications

Nanoparticle Usage in Leather Processing: Worker Safety and Health

Nanoparticle Usage in Leather Processing: Worker Safety and Health

Unveiling Antimicrobial Properties and Crystallization Induction in PLA Using α-Ag2WO4 Nanoparticles

Electrocatalytic contributions from Brazilian research groups for clean energy conversion and environmental remediation

Contact Info

Product

Resources

About

Unveiling Antimicrobial Properties and Crystallization Induction in PLA Using α-Ag₂WO₄ Nanoparticles