The effect of titanium dioxide on the biochemical constituents of the brain of Zebrafish (Danio rerio): An FT-IR study

► FT-IR spectra reveal alterations in the biochemical constituents. ► The result suggests an increase in carbonyls and a degradation of lipids. ► The result suggests that lipid degradation predominates over carbonyl formation. ► The observed changes could be due to the overproduction of ROS. ► nTiO2 are more toxic than their bulk counterparts.