anatase type tio2

...

Barium sulfate quotation factories operate on a global scale, with major players scattered across Asia, Europe, and North America. The pricing structure of barium sulfate is influenced by factors such as raw material costs, energy expenses, transportation, and market demand. Factory quotations vary based on purity levels, particle size distribution, and the end-use industry Factory quotations vary based on purity levels, particle size distribution, and the end-use industry Factory quotations vary based on purity levels, particle size distribution, and the end-use industry Factory quotations vary based on purity levels, particle size distribution, and the end-use industrybarium sulfate quotation factories. For instance, the medical sector requires high-purity barium sulfate for contrast agents, while the oil drilling industry may opt for less pure grades.

...

The vitaminC@P25TiO2NPs, on the other side, did not have any effect on cell protection against ROS. This might be due to the fact that vitamin C, a well-known scavenger of ROS, could behave as prooxidant and even promote ROS and lipid peroxidation [39]. It was recently described that at small concentrations of vitamin C, the prooxidant effects dominate; while in large concentrations the antioxidant ones predominate [40]. The effect also depends on the cell state and the interaction of vitamin C with light. In this case, ascorbic acid may act as an antenna to harvest visible light when conjugated to P25TiO2NPs. Indeed, it was previously found that this combination (in some ratios) could have an improved photocatalytic activity, possibly due to a red shift in its light absorbance [41]. Further studies on vitaminC@P25TiO2NPs were not conducted, because of the poor antioxidant capacity [42].

...