Hydrophobic cellulose-based and non-woven fabrics coated with mesoporous TiO2 and their virucidal properties under indoor light

Souza, Darliane CS; Amorim, Suélen Maria de; Cadamuro, Rafael Dorighello; Fongaro, Gislaine; Peralta, Rosely A.; Peralta, Rosane Marina; Puma, Gianluca Li; Moreira, Regina de Fátima Peralta Muniz

doi:10.1016/j.carpta.2021.100182

Cited by 7 publications

(4 citation statements)

References 70 publications

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“…Souza and co-workers’ research 137 compared antiviral hydrophobic cellulose-based cotton to non-woven fabrics containing mesoporous TiO 2 hydrosols for potential use in healthcare and other frequent-touch environments. The virucidal effect of the different fabrics against Murine Coronavirus (MHV-3) and Human Adenovirus (HAdV-5) was evaluated under indoor light irradiation.…”

Section: Toward Visible-light Activity–dopingmentioning

confidence: 99%

“…However, it is accepted that the way the cotton material was tested (submerged in water and stirred under magnetizations not compared to normal washing conditions). 137 …”

Section: Toward Visible-light Activity–dopingmentioning

confidence: 99%

“…However, it is accepted that the way the cotton material was tested (submerged in water and stirred under magnetizations not compared to normal washing conditions). 137 In another study employing graphene oxide, cotton fibers were treated with graphene oxide and decorated with Fe-, N-doped TiO 2 nanoparticles. The results showed that the photocatalytic effect was dependent on the chemicals used to disperse the nanoparticles, the parameters of the treatment, and the fiber structure and composition of the material.…”

Section: Dopants and Incorporation Into Textilesmentioning

confidence: 99%

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Using visible light to activate antiviral and antimicrobial properties of TiO2 nanoparticles in paints and coatings: focus on new developments for frequent-touch surfaces in hospitals

et al. 2023

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The COVID-19 pandemic refocused scientists the world over to produce technologies that will be able to prevent the spread of such diseases in the future. One area that deservedly receives much attention is the disinfection of health facilities like hospitals, public areas like bathrooms and train stations, and cleaning areas in the food industry. Microorganisms and viruses can attach to and survive on surfaces for a long time in most cases, increasing the risk for infection. One of the most attractive disinfection methods is paints and coatings containing nanoparticles that act as photocatalysts. Of these, titanium dioxide is appealing due to its low cost and photoreactivity. However, on its own, it can only be activated under high-energy UV light due to the high band gap and fast recombination of photogenerated species. The ideal material or coating should be activated under artificial light conditions to impact indoor areas, especially considering wall paints or frequent-touch areas like door handles and elevator buttons. By introducing dopants to TiO 2 NPs, the bandgap can be lowered to a state of visible-light photocatalysis occurring. Naturally, many researchers are exploring this property now. This review article highlights the most recent advancements and research on visible-light activation of TiO 2 -doped NPs in coatings and paints. The progress in fighting air pollution and personal protective equipment is also briefly discussed. Graphical Abstract Indoor visible-light photocatalytic activation of reactive oxygen species (ROS) over TiO 2 nanoparticles in paint to kill bacteria and coat frequently touched surfaces in the medical and food industries.

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Section: Toward Visible-light Activity–dopingmentioning

confidence: 99%

“…However, it is accepted that the way the cotton material was tested (submerged in water and stirred under magnetizations not compared to normal washing conditions). 137 …”

Section: Toward Visible-light Activity–dopingmentioning

confidence: 99%

Section: Dopants and Incorporation Into Textilesmentioning

confidence: 99%

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Using visible light to activate antiviral and antimicrobial properties of TiO2 nanoparticles in paints and coatings: focus on new developments for frequent-touch surfaces in hospitals

et al. 2023

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“…Pelapisan TiO2 pada suatu kain memang telah banyak dilakukan, namun aplikasinya untuk aktivitas antibakteri (Doganli et al, 2016;Zahid et al, 2018). Namun, Souza et al (2022) melakukan terobosan baru dengan mengamati aktivitas antivirus TiO2 yang dilapiskan pada kain katun. Mereka melaporkan bahwa TiO2 pada kain katun dapat mereduksi 90% virus MHV-3 (Murine Coronavirus).…”

Section: Alchemy Jurnal Penelitian Kimiaunclassified

Pelapisan Komposit TiO2-SiO2 pada Kain Poliester dengan Metode Dip Coating pada Pembuatan Masker Hidrofobik Antivirus

et al. 2022

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Penelusuran potensi komposit TiO2-SiO2 (sumber silika dari abu sekam padi) sebagai material coating untuk pembuatan masker kain yang hidrofobik dan memiliki sifat antivirus merupakan tujuan utama dalam penelitian ini. Metode yang digunakan untuk sintesis komposit TiO2-SiO2 adalah metode sol-gel. Adapun proses coating dilakukan dengan metode dip coating. Hasil karakterisasi PSA menyatakan bahwa rata-rata ukuran partikel silika dari abu sekam padi yang terbentuk adalah 202,98 nm. Tipe kristal komposit TiO2-SiO2 yang terkonfirmasi XRD adalah campuran fase anatase dan brookite. Hasil SEM memperlihatkan bahwa komposit yang telah disintesis menempel kuat di serat-serat kain, yang mengindikasikan bahwa proses coating berjalan sempurna. Hasil pengujian sudut kontak menunjukkan bahwa kain hasil coating bersifat hidrofobik karena memiliki nilai sudut 110,4°. Suhu permukaan kain hasil coating yang dikarakterisasi dengan thermal camera menunjukkan hasil yang baik karena hanya dalam kurun waktu 10 menit iradiasi sinar UV-C, suhu permukaannya sudah melebihi 40 °C. Oleh karena itu, kain hasil coating memiliki potensi besar untuk diaplikasikan menjadi masker antivirus karena receptor binding motif dari protein spike SARS-CoV-2 mulai mengalami penutupan konformasi pada suhu 40 °C. TiO2-SiO2 Composite Coating on Polyester Fabrics using Dip Coating Method for Antivirus Hydrophobic Mask Fabrication. Exploring the potential of TiO2-SiO2 composite (a silica source obtained from rice husk ash) as a coating material for the manufacture of hydrophobic and antiviral fabric masks is the main goal of this study. The sol-gel method is used in the manufacture of TiO2-SiO2 composites. The coating process is carried out using a dip coating method. The results of PSA characterization show that the average silica particle size formed was 202.98 nm. The XRD confirmed that the TiO2-SiO2 composite crystal type is a mixture of anatase and brookite phases. The SEM shows that that the synthesized composite adheres strongly to the fabric fibers, indicating that the coating process runs perfectly because it is clearly seen. The results of the contact angle test show that the coated fabric is hydrophobic because it has an angle value of 110.4°. The surface temperature of the coated fabric characterized by a thermal camera shows good results because in just 10 minutes of UV-C irradiation, the surface temperature has exceeded 40 °C. Therefore, the coated fabric has a great potential to be applied as an antiviral mask because the receptor binding motif of the SARS-CoV-2 spike protein begins to undergo conformational closure at 40 °C.

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Polysaccharides for Medical Technology: Properties and Applications

Sukhavattanakul

Pisitsak

Ummartyotin

et al. 2022

Macromolecular Bioscience

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Over the past decade, the use of polysaccharides has gained tremendous attention in the field of medical technology. They have been applied in various sectors such as tissue engineering, drug delivery system, face mask, and bio‐sensing. This review article provides an overview and background of polysaccharides for biomedical uses. Different types of polysaccharides, for example, cellulose and its derivatives, chitin and chitosan, hyaluronic acid, alginate, and pectin are presented. They are fabricated in various forms such as hydrogels, nanoparticles, membranes, and as porous mediums. Successful development and improvement of polysaccharide‐based materials will effectively help users to enhance their quality of personal health, decrease cost, and eventually increase the quality of life with respect to sustainability.

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Hydrophobic cellulose-based and non-woven fabrics coated with mesoporous TiO2 and their virucidal properties under indoor light

Cited by 7 publications

References 70 publications

Using visible light to activate antiviral and antimicrobial properties of TiO2 nanoparticles in paints and coatings: focus on new developments for frequent-touch surfaces in hospitals

Using visible light to activate antiviral and antimicrobial properties of TiO2 nanoparticles in paints and coatings: focus on new developments for frequent-touch surfaces in hospitals

Pelapisan Komposit TiO2-SiO2 pada Kain Poliester dengan Metode Dip Coating pada Pembuatan Masker Hidrofobik Antivirus

Polysaccharides for Medical Technology: Properties and Applications

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