Fig. 3

Cytotoxicity of curcumin film spray to Vero and MDCK cells. Vero cells (a) or MDCK cells (b) were treated with varying concentrations of the curcumin film spray for 72 h. Subsequently, cytotoxicity was determined by measuring viability of the treated cells using the CellTiter 96AQueous One Solution Cell Proliferation Assay kit