Development of a Hybrid Chitosan- and Niacinamide-Coupled ZnO Nanoparticle Composite for Sun Protection Application

Figure 9

Cell viability of ZnO, CS/ZnO, and Nia/ZnO. The graph shows the result of the MTT experiment which in the three samples was carried out by using the skin cell (SK-Mel-28). The concentration shown in the graph is generally used for the nanoparticles.