Fig. 3

a-h MDA-MB-231 spheroid volume before (day 5) and after (day 7) citral treatment (magnification, × 100). i Volume quantification of vehicle control and citral treated MDA-MB-231 spheroid. The volume of MDA-MB-231 spheroid was estimated using V = (4/3) π R³. All the experiments were performed in three biological replicates and each with triplicates. All data are expressed as mean ± S.E.M. with (*p < 0.05)