Acute and subchronic airway inflammation after intratracheal instillation of quartz and titanium dioxide agglomerates in mice. Research output: Contribution to journal Journal article Research peer-review
ratio of 250 produced 100% rutile powders when precipitated below 45 C. Higher temperatures yielded initially either anatase or mixtures of anatase and rutile. Spherulitic growth produced cauliflower-shaped agglomerates with a mean size of 760 nm. The agglomerates could be broken apart into approximately 100-nm large
Studied compounds were the two micro-size reference quartzes SRM1878a and DQ12 a micro- and nano-size rutile titanium dioxide TiO2 a nano-size anatase and an amorphous TiO2. Particles were administered by a single i.t. instillation in mice at a fixed dose of 5 50 and 500 micrograms respectively.
Rutile titania powders were synthesized via a sol-gel/hydrothermal process using nitric acid as the alyst. A molar acid to alkoxide ratio of 10 and a water to alkoxide molar ratio of 250 ...
A molar acid to alkoxide ratio of 10 and a water to alkoxide molar ratio of 250 produced 100% rutile powders when precipitated below 45 C. Higher temperatures yielded initially either anatase or mixtures of anatase and rutile. Spherulitic growth produced cauliflower-shaped agglomerates with a mean size of 760 nm.
Osteoblastic IL-6 production has been shown to depend on the internalization of titanium particles as indi ed earlier experiments using inhibitors of phagocytosis and protein trafficking. 1135 It could then be hypothesized that the lower size of intracellular agglomerates of rutile particles led to reduced IL-6 secretion compared to titanium.
Ⅰ. What is TiO2 titanium dioxideThe scientific name of titanium dioxide is titanium dioxide. It has two crystal forms: rutile and anatase. Anatase type TiO2 titanium dioxide has better whiteness but...
Uptake of primary particles and agglomerates by SHE exposed for 24 h was observed for all samples. TiO 2 samples were found to be more cytotoxic than iron oxide samples. Concerning primary size effects anatase TiO 2 rutile TiO 2 and Fe 2 O 3 nanoparticles induced higher cytotoxicity than their microsized counterparts after 72 h of exposure.
A micro-agglomerate of fines of a material that is predominantly titanium dioxide in which the fines are bound in the micro-agglomerate by a polysaccharide gum or cellulose derivative and in which the micro-agglomerate has been heated in the temperature range 250-600ºC so that the polysaccharide gum or cellulose derivative is an effective primary binder of the fines when the micro-agglomerate ...
New technological processes of using titanium oxide concentrates rutile ilmenite as starting materials for titanium alloys production were proposed. The first one is based on mechanical activation of natural rutile concentrate with milling which caused the reducing of booster KClO 4 amount around 30% and saving expenses for previous chlorination in subsequent aluminothermic reductions.