Melanin probe-1, an 18F-picolinamide-based PET probe, is utilized for PET imaging of malignant melanoma. It demonstrates remarkable tumor targeting efficacy, superior tumor imaging contrasts, favorable biodistribution profiles, and robust in vivo stability.
Difluorinated H2S probe 1 is a fluorescent probe for hydrogen sulfide (H2S).1It selectively fluoresces in the presence of H2S over Zn2+, Fe3+, S2O32-, ClO-, SO32-, H2O2, NO2-, cysteine (Cys), homocysteine (Hcy), and glutathione (GSH) when used at a concentration of 1 μM. Difluorinated H2S probe 1 displays excitation/emission maxima of 365/450 nm, respectively. 1.Zhang, J., Gao, Y., Kang, X., et al.o,o-Difluorination of aromatic azide yields a fast-response fluorescent probe for H2S detection and for improved bioorthogonal reactionsOrg. Biomol. Chem.15(19)4212-4217(2017)