Agglomeration State of Titanium-Dioxide (TiO₂) Nanomaterials Influences the Dose Deposition and Cytotoxic Responses in Human Bronchial Epithelial Cells at the Air-Liquid Interface.

Although an increasing trend in the metabolic activity can be seen ( Figure 3 C,D) compared to their clean air controls, small (117 nm-SA) and large agglomerates (117 nm-LA) of 117 nm sized TiO 2 did not affect the metabolic activity significantly even at the highest doses deposited (~24 and 38 μg/cm 2 , respectively).

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