Antimicrobial effect of cotton fabric functionalized with a kaolinite-titania nano-hybrid composite

Oliveira, Carlos Rafael Silva de; Mulinari, Jéssica; Batistella, Mateus; Souza, Antônio Augusto Ulson de; Souza, Selene de Arruda Guelli Ulson de Maria

doi:10.1016/j.matchemphys.2022.127078

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…Finishing processes also improve the appearance of fabrics, making them shinier and less wrinkled. Many types of finishes can also provide additional functionalities to the substrate, such as greater hydrophilicity, hydrophobicity, insect repellency, antimicrobial activities [26], antifungal, antiviral, and anti-mite, quick-drying, easy cleaning, and selfcleaning activity, among others [12,13].…”

Section: Dyeing and Finishing Equipment Prevention Measuresmentioning

confidence: 99%

A Comprehensive Guide to Textile Process Laboratories: Risks, Hazards, Preservation Care, and Safety Protocol

de Oliveira,

de Aguiar,

Missner

et al. 2023

Laboratories

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Textile chemistry and textile processing laboratories are essential environments for textile product research and development, but they also pose hazards that require rigorous precautions. Among the most common risks is handling chemicals used in the textile industry, such as dyes, solvents, and finishing chemicals, which can be contaminants, corrosive, and flammable, presenting risks of poisoning and fire. Textile processing laboratories also require proper ventilation, as a lack of appropriate ventilation in these environments can accumulate toxic vapors in the air. The most relevant risks and hazards of using textile chemistry laboratories include using equipment such as dyeing autoclaves under pressure and high temperature; drying ovens like furnaces/lab stenters; cylinders of squeezing, calenders, and others, capable of causing severe accidents. These laboratories also generate or handle solid waste and effluents containing, heavy metals to pathogens (e.g., from industrial sludge). It is essential to adopt rigorous safety measures in textile chemistry laboratories, including using personal protective equipment (PPE), proper training of workers, effective ventilation systems, and safe waste disposal protocols. Good laboratory work practices not only reduce risk but also promote better research; more accurate results; and better data. Therefore, this study aimed to map the risks and hazards of textile processing laboratories with a view to accident prevention and formalizing a protocol for good practices.

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Section: Dyeing and Finishing Equipment Prevention Measuresmentioning

confidence: 99%

A Comprehensive Guide to Textile Process Laboratories: Risks, Hazards, Preservation Care, and Safety Protocol

de Oliveira,

de Aguiar,

Missner

et al. 2023

Laboratories

Self Cite

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“…Alternatively, a cotton fabric functionalized with kaolinite-titania nano-hybrid particles enhanced the photoactivity of the immobilized TiO 2 and led to the complete disinfection of Escherichia coli (Gram-negative) and Bacillus cereus (Gram-positive) bacteria during contact with this fabric [ 65 ]. Cotton fibers treated in situ with ammonium-salicylidene chitosan Schiff base, TiO 2 , and ZnO NPs exhibited strong antimicrobial activity against S. aureus , E. coli , and C. albicans pathogens and barrier properties toward UV radiation.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and Antifungal Properties of Polyester, Polylactide, and Cotton Nonwovens and Fabrics, by Means of Stable Aqueous Dispersions Containing Copper Silicate and Some Metal Oxides

et al. 2023

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Literature reviews have described the applications of silver, copper, and zinc ions and metallic particles of Cu, Ti, and Zn oxides, which have been found to be useful antimicrobial reagents for the biofunctionalization of various materials and their surfaces. For this purpose, compositions of water dispersions containing emulsions of synthetic copolymers based on acrylic and vinyl monomers, polysaccharides (hydroxyethyl cellulose and starch), and various additives with wetting and stabilizing properties were used. Many stable water dispersions of different chemical compositions containing bioactive chemical compounds (copper silicate hydrate, titanium dioxide, and zinc oxide (and other auxiliary substances)) were developed. They were used for the preparation of thin hybrid coatings having good antimicrobial properties against Gram-negative bacteria (Escherichia coli), Gram-positive bacteria (Staphylococcus aureus), and yeast fungus (Candida albicans). Polyester (PES) and polylactide (PLA) nonwovens were modified using the dip-coating method, while PES and cotton fabrics were biofunctionalized by means of dip-coating and coating methods. The antimicrobial (antibacterial and antifungal) properties of the textile materials (nonwovens and fabrics) biofunctionalized with the above-mentioned bioactive agents exhibiting antimicrobial properties (CuSiO3, TiO2, ZnO, or ZnO∙SiO2) were strongly dependent on the agents’ content in the water dispersions. The PES and PLA nonwovens, modified on the surface with water compositions containing copper silicate hydrate, showed good antibacterial properties against the Gram-negative bacteria Escherichia coli, even at a content of 1 wt.% CuSiO3∙xH2O, and against the Gram-positive bacteria Staphylococcus aureus, at the content of at least 5 wt.% CuSiO3∙xH2O. The bacterial growth reduction factor (R) was greater than 99% for most of the samples tested. Good antifungal properties against the fungus Candida albicans were found for the PES and PLA nonwoven fabrics modified with dispersions containing 5–7 wt.% CuSiO3∙xH2O and 4.2–5.0 wt.% TiO2. The addition of TiO2 led to a significant improvement in the antifungal properties of the PES and PLA nonwovens modified in this way. For the samples of PES WIFP-270 and FS F-5 nonwovens, modified with water dispersions containing 5.0 wt.% CuSiO3∙xH2O and 4.2–5.0 wt.% TiO2, the growth reduction factor for the fungus Candida albicans (R) reached values in the range of 80.9–98.0%. These new biofunctionalized polymeric nonwoven textile materials can find practical applications in the manufacture of filters for hospital air-conditioning systems and for the automotive industry, as well as in air purification devices. Moreover, similar antimicrobial modification of fabrics with the dip-coating or coating methods can be applied, for example, in the fabrication of fungi- and mold-resistant garden furniture.

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“…36,37 Inorganic antibacterial materials are usually less susceptible to bacterial resistance and have higher safety and thermal stability. As silver, 38 copper, 20,39 TiO 2 , 40,41 and ZnO 42 have attracted plenty of attention from various disciplines. Among these, research on inorganic photocatalytic antibacterial agent zinc oxide nanoparticles (ZnO NPs) for textile applications has recently attracted much attention.…”

Section: Introductionmentioning

confidence: 99%

Thermostable ZnO/Ag@SiO₂ nanohybrid material for extraordinary antibacterial activity polyester fibers

Zheng,

Chen,

Shi

et al. 2023

Polymer Engineering & Sci

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Melt blending is considered a significant method to develop antibacterial textile materials. However, it is still challenging to the homogeneous dispersion and efficient antibacterial activity of inorganic nanoparticles in polymer fibers. In this work, ZnO/Ag@SiO2 inorganic nanohybrid antibacterial agents were prepared by the direct precipitation method. The prepared antibacterial material had efficient antibacterial and thermal stability properties. Specifically, the decomposition temperature of the ZnO/Ag@SiO2 was higher than 400°C, which was appropriate for melting polymers at high temperatures. Here, polyethylene terephthalate (PET) was used as a fiber matrix, and PET/ZnO/Ag@SiO2 fibers were prepared by melt spinning technology. The results showed that the antibacterial material was well dispersed in the PET matrix, and the crystallization was promoted during the cooling process. The modified PET fibers presented better antibacterial properties against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), with a maximum antibacterial rate of 99.9%. Additionally, the modified PET fibers provide superior laundering durability, with an antibacterial rate of 95.7% for S. aureus and 94.8% for E. coli after 50 washes. This work offers a novel approach to preparing thermotolerant and efficient antibacterial agents and antibacterial‐modified PET fibers.Highlights ZnO/Ag@SiO2 nanohybrid antibacterial agents were prepared. High temperature resistant and highly antibacterial material. The particles dispersed uniformly in PET matrix. Excellent antibacterial and laundering properties of the fiber

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Antimicrobial effect of cotton fabric functionalized with a kaolinite-titania nano-hybrid composite

Cited by 9 publications

References 21 publications

A Comprehensive Guide to Textile Process Laboratories: Risks, Hazards, Preservation Care, and Safety Protocol

A Comprehensive Guide to Textile Process Laboratories: Risks, Hazards, Preservation Care, and Safety Protocol

Antibacterial and Antifungal Properties of Polyester, Polylactide, and Cotton Nonwovens and Fabrics, by Means of Stable Aqueous Dispersions Containing Copper Silicate and Some Metal Oxides

Thermostable ZnO/Ag@SiO₂ nanohybrid material for extraordinary antibacterial activity polyester fibers

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Antimicrobial effect of cotton fabric functionalized with a kaolinite-titania nano-hybrid composite

Cited by 9 publications

References 21 publications

A Comprehensive Guide to Textile Process Laboratories: Risks, Hazards, Preservation Care, and Safety Protocol

A Comprehensive Guide to Textile Process Laboratories: Risks, Hazards, Preservation Care, and Safety Protocol

Antibacterial and Antifungal Properties of Polyester, Polylactide, and Cotton Nonwovens and Fabrics, by Means of Stable Aqueous Dispersions Containing Copper Silicate and Some Metal Oxides

Thermostable ZnO/Ag@SiO2 nanohybrid material for extraordinary antibacterial activity polyester fibers

Contact Info

Product

Resources

About

Thermostable ZnO/Ag@SiO₂ nanohybrid material for extraordinary antibacterial activity polyester fibers