Figure 5: In vitro cytotoxicity assay (i) Graph depicting the cell viability of RIN-5F cells on interacting with zinc oxide nanoparticles (a) Untreated RIN-5F cells (b) RIN-5F cells treated with 60 μg/ml zinc oxide nanoparticles (c) RIN-5F cells treated with 100 μg/ml of zinc oxide nanoparticles