Delta SARS-CoV-2 inactivation and bactericidal performance of cotton wipes decorated with TiO2/Ag nanoparticles like Brazilian heavy-fruited Myrciaria cauliflora

Silva, Daniel José da; Duran, Adriana Feliciano Alves; Cabral, Aline Diniz; Fonseca, Fernando L. A.; Bueno, Rodrigo F.; Wang, Shu Hui; Rosa, Derval S.

doi:10.1016/j.mtcomm.2022.104288

Cited by 5 publications

(3 citation statements)

References 73 publications

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“…By absorbing light with energy higher than the band gap (∼3.2 eV), photogenerated electron/hole (e – /h + ) pairs form in TiO 2 and can react with oxygen and water molecules, producing reactive oxygen species (ROS), such as superoxide (O 2 •– ) and hydroxyl (HO • ) radicals. , These generated ROS possess high oxidative potential, effectively oxidizing organic components of microorganisms, resulting in cell wall and membrane rupture, RNA destruction, and protein alteration . Several metal oxide-based photocatalysts, such as CuO and TiO 2, and nanoparticle decorated metal oxides (e.g., Ag/TiO 2 , Au/ZnO, and Pd/TiO 2 ) have been used for virus inactivation. In most work reported so far, the reaction is performed in the liquid phase in the presence of a catalyst and virus suspension, ,, and there is a lack of knowledge concerning the inactivation mechanism.…”

Section: Introductionmentioning

confidence: 99%

“… 8 , 18 These generated ROS possess high oxidative potential, effectively oxidizing organic components of microorganisms, resulting in cell wall and membrane rupture, RNA destruction, and protein alteration. 19 Several metal oxide-based photocatalysts, such as CuO 20 and TiO 2, 8 and nanoparticle decorated metal oxides (e.g., Ag/TiO 2 , 21 Au/ZnO, 22 and Pd/TiO 2 8 ) have been used for virus inactivation. In most work reported so far, the reaction is performed in the liquid phase in the presence of a catalyst and virus suspension, 9 , 23 , 24 and there is a lack of knowledge concerning the inactivation mechanism.…”

Section: Introductionmentioning

confidence: 99%

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Light-Induced Transformation of Virus-Like Particles on TiO₂

Kohantorabi,

Ugolotti,

Sochor

et al. 2024

ACS Appl. Mater. Interfaces

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Titanium dioxide (TiO 2 ) shows significant potential as a self-cleaning material to inactivate severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and prevent virus transmission. This study provides insights into the impact of UV-A light on the photocatalytic inactivation of adsorbed SARS-CoV-2 virus-like particles (VLPs) on a TiO 2 surface at the molecular and atomic levels. X-ray photoelectron spectroscopy, combined with density functional theory calculations, reveals that spike proteins can adsorb on TiO 2 predominantly via their amine and amide functional groups in their amino acids blocks. We employ atomic force microscopy and grazing-incidence small-angle X-ray scattering (GISAXS) to investigate the molecular-scale morphological changes during the inactivation of VLPs on TiO 2 under light irradiation. Notably, in situ measurements reveal photoinduced morphological changes of VLPs, resulting in increased particle diameters. These results suggest that the denaturation of structural proteins induced by UV irradiation and oxidation of the virus structure through photocatalytic reactions can take place on the TiO 2 surface. The in situ GISAXS measurements under an N 2 atmosphere reveal that the virus morphology remains intact under UV light. This provides evidence that the presence of both oxygen and UV light is necessary to initiate photocatalytic reactions on the surface and subsequently inactivate the adsorbed viruses. The chemical insights into the virus inactivation process obtained in this study contribute significantly to the development of solid materials for the inactivation of enveloped viruses.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Light-Induced Transformation of Virus-Like Particles on TiO₂

Kohantorabi,

Ugolotti,

Sochor

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…During the COVID-19 pandemic, many researchers developed reusable antiviral clothing and masks by coating different chemicals, that is, diphenolic acid (DPA), and hybrid nanoparticles (Ag/TiO 2 ) on cotton fabric. [9,10] Such novel fabrics not only helped protect healthcare workers against viruses but also prevented the surge in plastic waste to some extent. [11] Designing such reliable fabrics with superior characteristics is necessary to reduce environmental contamination and promote sustainable growth.…”

Section: Introductionmentioning

confidence: 99%

Advancements in Enhancing Antibacterial Properties of Cotton Fabric through Chitosan and Nanoparticles

Verma,

Ahuja,

Arora

2023

ChemistrySelect

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Over recent years, the garment industry has been actively seeking innovative solutions to address critical challenges in clothing production. One significant issue has been the susceptibility of hydrophilic cotton fabrics, commonly used in healthcare and sportswear, to bacterial growth, posing hygiene concerns. To deal with this, it becomes crucial for us to make durable cotton fabrics that can fight bacteria. This study explores the development of durable antibacterial cotton textiles by utilizing a range of antibacterial agents and mechanisms. Chitosan's properties, such as its ability to inhibit fungal growth, compatibility, non‐toxicity, bioactivity, and antimicrobial potential make it a promising candidate for the textile industry. Additionally, the incorporation of metal nanoparticles along with chitosan offers interesting potential, such as UV absorption, self‐cleaning capabilities, and antimicrobial activity. Therefore, research aimed at enhancing cotton fabric by harnessing the potential of chitosan and metal nanoparticles continues to attract significant attention in today's textile world. Cotton fabric modified by combining chitosan and nanoparticles exhibits high antimicrobial activity compared to fabric modified with either nanoparticles or chitosan alone. The implications of this study are far‐reaching with improvement in hygiene, comfort, and durability in a wide range of clothing applications, thus making a substantial contribution to the evolution of the textile industry.

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Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

Dai

et al. 2023

Advanced Science

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The natural design and coupling of biological structures are the root of realizing the high strength, toughness, and unique functional properties of biomaterials. Advanced architecture design is applied to many materials, including metal materials, inorganic nonmetallic materials, polymer materials, and so on. To improve the performance of advanced materials, the designed architecture can be enhanced by bionics of biological structure, optimization of structural parameters, and coupling of multiple types of structures. Herein, the progress of structural materials is reviewed, the strengthening mechanisms of different types of structures are highlighted, and the impact of architecture design on the performance of advanced materials is discussed. Architecture design can improve the properties of materials at the micro level, such as mechanical, electrical, and thermal conductivity. The synergistic effect of structure makes traditional materials move toward advanced functional materials, thus enriching the macroproperties of materials. Finally, the challenges and opportunities of structural innovation of advanced materials in improving material properties are discussed.

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Delta SARS-CoV-2 inactivation and bactericidal performance of cotton wipes decorated with TiO2/Ag nanoparticles like Brazilian heavy-fruited Myrciaria cauliflora

Cited by 5 publications

References 73 publications

Light-Induced Transformation of Virus-Like Particles on TiO₂

Light-Induced Transformation of Virus-Like Particles on TiO₂

Advancements in Enhancing Antibacterial Properties of Cotton Fabric through Chitosan and Nanoparticles

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

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Delta SARS-CoV-2 inactivation and bactericidal performance of cotton wipes decorated with TiO2/Ag nanoparticles like Brazilian heavy-fruited Myrciaria cauliflora

Cited by 5 publications

References 73 publications

Light-Induced Transformation of Virus-Like Particles on TiO2

Light-Induced Transformation of Virus-Like Particles on TiO2

Advancements in Enhancing Antibacterial Properties of Cotton Fabric through Chitosan and Nanoparticles

Advanced Composites Inspired by Biological Structures and Functions in Nature: Architecture Design, Strengthening Mechanisms, and Mechanical‐Functional Responses

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Product

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Light-Induced Transformation of Virus-Like Particles on TiO₂

Light-Induced Transformation of Virus-Like Particles on TiO₂