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Table 1 The physicochemical characterizations of titanium dioxide NPs

From: High-dose intranasal application of titanium dioxide nanoparticles induces the systemic uptakes and allergic airway inflammation in asthmatic mice

Property TiO2
Crystalline structure Mixture of anatase and rutile with predominantly anatase structure
Primary particle size 21 nm
Hydrodynamic diameter 185 ± 18 nm
Form Nanopowder
Surface area 35–65 m2 /g
Density 4.26 g/mL at 25 °C