Fig. 2

Effect of gold nanoparticles (Au-NPs) biosynthesized by N. oculata algal extract against the changes in the activity of acetylcholinesterase (AChE) enzyme induced by lithium carbonate (Li2CO3) in both kidney and brain tissues of rats. Data were calculated from five replicates and expressed as mean ± SE, (a) significant versus control group, (b) significant versus toxic (Li2CO3) group at p ≤ 0.05.