Self-assembled cyclodextrins-based nanostructures on indium-tin-oxide for a detection of catecholamine neurotransmitters

•β-, and γ-Cyclodextrins-based nanostructures onto ITO were deposited and characterized.•Supramolecular recognition capability of the analytic systems was investigated by DFT.•The β-, and γ-Cyclodextrins on ITO was applied to detect neurotransmitters.•The nanomolar limits of detection from 14 nM to 72 nM were observed.•These sensors display good selectivity for catecholamines over co-existing interferential compounds.