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Zusammenfassung:
Here we report on a dual-modal 19F and 1H MRI paramagnetic probe with a self-immolative linker, Gd–DOMF–Gal. The enzymatic conversion of this probe by β-galactosidase resulted in a simultaneous turning on of the fluorine signal and changed ability of the Gd3+ complex to modulate the 1H MR signal intensity of the surrounding water molecules. A versatile imaging platform for monitoring a variety of enzymes by 19F and 1H MRI using this molecular design is proposed.