Abstract
β-Galactosidase (β-Gal), confirmed to provide energy and participate in the galactosyl transfer reaction, is primarily over-expressed in ovarian cancer cells. Herein, detecting endogenous β-Gal is essential for the diagnosis and monitoring of primary ovarian cancer cells. In this study, we proposed two structurally related cationic Lanthanide(III) triamide complexes for highly sensitive and rapid detection of β-Gal. Moreover, LDEu02 showed a low detection limit (2.3 × 10−3 U/mL) and high specificity with high affinity for β-Gal, which had great potential to the detection of the β-Gal activity by using time-resolved fluorescence techniques.
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