“…Numerous ECL luminophores were synthesized in the past years, and several organic, inorganic, and nanomaterial systems can produce ECL [ 22 ]. Nevertheless, among the different emitting species commonly utilized in ECL biosensors, ruthenium complexes [ [23] , [24] , [25] , [26] , [27] ] and luminol [ [28] , [29] , [30] , [31] , [32] , [33] ] derivatives are the most popular ones employed due to their high solubility in an aqueous medium and the ability to use at a physiological pH in biological samples and also viral detection.…”