MMP2 and neoplasm: Another tumor detecting QD/FRET nanosensor targeting MMP‐2 was designed by Li et al.[70] consisting of a CdTeS QD linked to the NIR dye ICG‐Der‐02 over a MMP‐2 cleavable peptide (Gly‐Pro‐Leu‐Gly‐Val‐Arg‐Gly‐Lys‐Gly‐Gly).[70] QD/FRET nanosensors for monitoring caspase‐1,[61, 64, 66] chymotrypsin, thrombin and collagenase activity were engineered by Medintz et al.[61]