Fig. 12
From: Folic acid-CdTe quantum dot conjugates and their applications for cancer cell targeting
Column 1: represents the ability of the folate receptors to bind to the folic acid coated QDs, thereby labeling the cells. Green Unlabeled KB cells. Orange/red KB cells labeled with folic acid-coated QD. Column 2: represents the inability of the A549 cells to bind the folic acid-coated QD, due to the lack of folate receptors on their surface. Green (on row 2) = A549 cells