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15 Φεβ 2022 · Although titanium dioxide (TiO2) is a suspected human carcinogen when inhaled, fiber-grade TiO2 (nano)particles were demonstrated in synthetic textile fibers of face masks intended for...
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4 Νοε 2022 · The antibacterial efficacies of cloth face masks coated with TiO2 were measured by inoculating them in bacterial suspensions (105 CFUs from both E. coli and S. aureus).
13 Ιαν 2021 · Importantly, semiconductors like titanium dioxide (TiO 2) and organic photosensitizing nanoparticles (like curcumin and riboflavins) can photo-dynamically kill viruses and bacteria: when these nanomaterials are exposed to light, they generate radical oxygen species that damage membranes, proteins and nucleic acids , .
11 Μαρ 2022 · What is titanium dioxide and why is it present in face masks? Titanium dioxide is a naturally occurring mineral used as a white pigment and matting agent in paints, paper, and textile products, and as an additive in foods, cosmetics, and medicines.
4 Νοε 2022 · TiO2 nanoparticle solutions with a high concentration (2%) demonstrated a strong antibacterial effect on E. coli and S. aureus, and the antibacterial activities of TiO2 in face masks could be promising for reducing the risk of bacterial infections.
4 Νοε 2022 · The antibacterial efficacies of cloth face masks coated with TiO2 were measured by inoculating them in bacterial suspensions (10 5 CFUs from both E. coli and S. aureus). The results showed that TiO2 nanoparticle solutions (at 2%) reduced the starting inoculum of 10 5 CFUs (5 log cfu/cm 2 ) of E. coli and S. aureus to 1.3 and 1.68 log ...
a large percentage of masks, even though not indicated, contain titanium dioxide which is generally applied in commercial textile products as a white colorant or as a matting agent 2,3 . It was demonstrated
