Zhu et al. were the first to provide evidence that TiO2 NPs (21 nm) can transfer from daphnia to zebrafish by dietary exposure. Hence, dietary intake could be a major route of exposure to NPs for high trophic level aquatic organisms. Ecological research should therefore focus, not only on the concentration of NPs in the environment, but also on its bioconcentration, bioaccumulation and biomagnification. In addition it has been shown that TiO2 NPs can increase accumulation of other environmental toxicants: enhanced accumulation of cadmium (Cd) and arsenic (As) was found in carp in the presence of TiO2 NPs. The strong adsorption capacity for Cd and As was explained by the large specific surface area and strong electrostatic attraction of TiO2 NPs that contribute to facilitated transport into different organs.
The Future of Titanium Dioxide: A Glimpse to 2023





CNNC Huayuan Titanium Dioxide Co., Ltd. (hereinafter referred to as the company or CNNC TiO2 is a famous titanium dioxide manufacturer in China and a listed company on the Shenzhen Stock Exchange. Its main products are high-grade rutile titanium dioxide, which are widely used in coatings, plastics, rubber, In ink, paper and other fields, it is known as “industrial monosodium glutamate”, and its application prospects are very broad.
Here it has been shown that functionalization of P25TiO2NPs with vitamin B2 was able to significantly decrease the oxidative stress produced when they are exposed to sunlight. This finding is of main importance to prevent skin damage and toxicity of sunscreens containing this form of untreated titanium dioxide and should be taken into consideration when updating the regulations mentioned above .