singlet molecular oxygen Chemical detection 2 Chemical monitoring 2 Chlorine compounds 2 Copper(II) tetracarboxyphthalocyanine 2 Diallyldimethylammonium chlorides 2 Dye concentration 2 Dyes 2 Film preparation 2 Fluorescence 2 Layer by layer self assembly 2 Layer-by-layers 2 Molecular aggregation 2 Molecular oxygen 2 Multi-layer thin film 2 Multilayer films 2 Multilayers 2 Photogeneration 2 Polyelectrolyte layers 2 Polyelectrolytes 2 Polymer films 2 Polymer folding 2 Química 2 Rose Bengal 2 Self assembled films 2 Self assembled material 2 Self assembled thin film 2 Self assembly 2 Singlet molecular oxygen 2 Singlet oxygen 2