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18 Ιαν 2012 · This study quantifies the amount of titanium in common food products, derives estimates of human exposure to dietary (nano-) TiO 2, and discusses the impact of the nanoscale fraction of TiO 2 entering the environment. The foods with the highest content of TiO 2 included candies, sweets, and chewing gums.
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4 Νοε 2021 · The results demonstrate the strong effect of particle size on membrane disruption and leakage behaviors, especially indicating the cytotoxicity of nano-sized TiO 2 particles improved with decrease of particle sizes. Therefore, the use of TiO 2 NPs as a food additive has potential health risks.
Several nanostructures with unique properties have been fabricated by nanotechnology for biotechnological applications, 1,2,6,8,9,11-14 among which, nano-sized titanium dioxide (TiO 2) has been widely used. The element of titanium was first discovered in 1791 by William Gregor.
Titanium dioxide (TiO 2) is a naturally occurring metal oxide and is one of the five engineered nanomaterials most commonly used in daily consumer products, including food 1.The TiO 2 food additive, referred to as E171 in the European Union (EU), is commonly used as a whitening and brightening agent in confectionary (candies and chewing gum), white sauces and icing 1, 2, 3.
Nanosized materials were present in all of the food-grade TiO2 samples, and transmission electron microscopy showed that samples 1-5 contained 35, 23, 21, 17, and 19% of nanosized primary particles (<100 nm in diam.) by no., resp. (all primary P25 particles were <100 nm in diam.).
24 Αυγ 2018 · Nowadays, TiO 2 is being used frequently for photo degradation of organic molecules and water splitting for hydrogen generation. Most important applications include purification, disinfection of waste water, self-cleaning coatings for buildings in urban areas and the production of the green currency of energy (hydrogen) by splitting water.
1 Ιουν 2024 · The rare-earth-doped nanoparticles converting NIR into UV light, NIR-triggered photodynamic therapy of Titanium Oxide inorganic photosensitizers can be obtained by coupling two different Nanoparticles, including up-conversion Nanoparticles (UC NPs) and Titanium Oxide Nanoparticles.
