EPCAM and breast cancer: Furthermore, the mean fluorescent intensity shown in Figure 4b was confirmed by fluorescence spectrophotometer and established that the high green intensity of MCF-7 breast-cancer cells had a mean intensity of 18,990 a.u., and the fibroblast cells had a mean intensity of 2441 a.u. As a result, MCF-7 cell EpCAM overexpression is confirmed as a potential target for anti-EpCAM functionalized EINPs [26].