Juan D. VilladaRichard F. D’VriesMario A. MacíasFabio ZuluagaManuel N. Chaur2026-03-222026-03-22201810.1039/c8nj03817ahttps://doi.org/10.1039/c8nj03817ahttps://andeanlibrary.org/handle/123456789/48642Citaciones: 13A new polymorph of fluorescein hydrazone was fully characterized <italic>via</italic> single X-ray crystallography. In addition, multiple logic circuits and a Half-Adder operator were designed using the fluorescence and UV-Vis switching responses of the fluorescein compound to different metal cations and pH changes.enHydrazoneChemistryFluoresceinFluorescencearticle