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1 Ιουλ 2023 · The TiO 2 NPs have been used in drug delivery and combined cancer treatments due to their ability to reach drug release in cancer cells, their autophagic, photodynamic characteristics, and their non-toxicity up to a concentration of 1 μg mL −1 for normal cells.
It has been reported that the elevated level of oxidative stress by exogenous agents, due to the elevation of ROS in tumor environment, can be more destructive in cancer cells. 41 Prior studies have shown that induction of ROS production in a tumor environment triggers apoptosis, which is the appropriate type of cell death in cancers. 42 Thus ...
4 Νοε 2021 · In this work, we systematically studied the interactions between three sizes of TiO 2 particles and the cell membrane systems with confocal laser scanning microscopy. We used both giant unilamellar vesicles and human colon cancer cells to mimic actual cell membrane systems.
26 Ιαν 2021 · Hydroxyl radicals (OH) are associated with titanium dioxide (TiO2) nanoparticle-induced cytotoxicity and oxidative DNA damage in fish cells. Mutation Research, Fundamental and Molecular Mechanisms of Mutagenesis.
Abstract. Food-grade titanium dioxide (TiO 2) containing a nanoscale particle fraction (TiO 2-NPs) is approved as a white pigment (E171 in Europe) in common foodstuffs, including confectionary.There are growing concerns that daily oral TiO 2-NP intake is associated with an increased risk of chronic intestinal inflammation and carcinogenesis.In rats orally exposed for one week to E171 at human ...
27 Οκτ 2020 · Abstract. Background: Oral exposure to titanium dioxide (TiO 2) is common since it is widely used in food and pharmaceutical products. Concern on the safety of this substance has been recently raised, due to the presence of an ultrafine fraction in food-grade TiO 2.
TiO2 is a compound of great importance due to its remarkable catalytic and distinctive semiconducting properties. ... These materials have also been used to kill bacteria in water treatment 191 and tumor cells in cancer treatment. 14,192 Some reviews are available on the photocatalytic mechanisms. 11,16,24,33 By ... Due to the decrease in ...
