“…Oligo(arylene ethynylene)s films consist of packed macromolecules with π-conjugated backbone thus exhibit high fluorescence emission which can be altered upon binding of an analyte molecule. OArEs films are an excellent materials for detection of amino acids [61], bacteria [79,80], explosives [34,81,82,85], pH [84], inorganic acids [83], gas [86], digital information [87] or chemicals [88,89]. Usually, the detection of an analyte is based on fluorescence changes, its enhancement or quenching upon binding of the sensed molecule.…”