Avellanal-Zaballa, EdurneRamos Torres, ÁgataPrieto Castañeda, AlejandroGarcía Garrido, FernandoBañuelos, JorgeRodríguez Agarrabeitia, AntoniaOrtíz García, María Josefa2023-06-172023-06-172019-11-142504-390010.3390/ecsoc-23-06486https://hdl.handle.net/20.500.14352/8287Herein, we describe the synthetic route to access a red-emitting BODIPY from its α-diformylated precursor. The photophysical signatures of this dye are sensitive to the presence of thiol-containing amino acids (like cysteine, homocysteine, and glutathione) in the surrounding environment. This sensor provides up to three detection channels to monitor and quantify these biomolecules, even at low concentrations (down to micromolar). Moreover, owing to the pronounced splitting of the spectral band profile induced by these amino acids, the detection can be visualized following just the evolution of the fluorescence color by the naked eye.engAtribución 3.0 Españajournal articlehttps://doi.org/10.3390/ecsoc-23-06486https://www.mdpi.com/2504-3900/41/1/18open accessdye chemistryfluorescent sensorsBODIPYamino acidsWittig reactionQuímica orgánica (Química)2306 Química Orgánica