cosmetic grade titanium dioxide supplier

While IARC listed titanium dioxide as “possibly carcinogenic to humans,” they also add that “there is inadequate evidence in humans for the carcinogenicity of titanium dioxide.” Of the four human studies that they reviewed, only one showed a potential risk for occupational workers inhaling titanium dioxide particles and lung cancer, while the other three showed no risk for cancer at all. And it’s key to note that IARC did not assess the effects of titanium dioxide found in foods.

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The gastrointestinal tract is a complex barrier/exchange system, and is the most important route by which macromolecules can enter the body. The main absorption takes place through villi and microvilli of the epithelium of the small and large intestines, which have an overall surface of about 200 m2. Already in 1922, it was recognized by Kumagai, that particles can translocate from the lumen of the intestinal tract via aggregation of intestinal lymphatic tissue (Peyer’s patch, containing M-cells (phagocytic enterocytes)). Uptake can also occur via the normal intestinal enterocytes. Solid particles, once in the sub-mucosal tissue, are able to enter both the lymphatic and blood circulation.

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Titanium dioxide, or TiO2, is a versatile material known for its exceptional refractive index, UV absorption, and photocatalytic activity. When produced in the nano range, specifically 30-50nm, these characteristics are amplified, opening up a world of possibilities. The 30-50nm TiO2 powders are widely used in applications such as sunscreens, self-cleaning surfaces, air purification systems, and even water treatment technologies due to their superior photocatalytic performance.

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{随机栏目} 2025-08-15 01:55 1368