Antagonistic Effects of Sublethal Concentrations of Certain Mixtures of Metal Oxide Nanoparticles and the Bulk (Al₂O₃, CuO, and SiO₂) on Gill Histology in Clarias gariepinus

Figure 10

(a) Histological section of gill exposed to nano-Al₂O₃/CuO (1 : 2) showing primary gill lamella (PGL), curved secondary gill lamella (CSGL), and shortened secondary gill lamella (SSGL) (H&E stains, ×400). (b) Histological section of gill exposed to nano-SiO/CuO (1 : 2) showing secondary gill lamella (SGL), inflammation of lamella (INF), and blood vessel (H&E stains, ×400).

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