On the development of electrochemical sensors coated with polycaprolactone

The main aim of this study was to test the biopolymer polycaprolactone (PCL) as an electrode modifier for electrochemical detection dopamine (DA). PCL chosen following a search polymers with appropriate geometry and functional groups detection. chemical structure average molecular weight synthesized were determined by 1H NMR, while DSC measurements showed decrease in crystallinity star-shaped polymer compared linear polymer. Atomic force microscopy wettability tests performed on PCL-coated ITO electrodes demonstrated influence architecture hydrophilicity film morphology. Electrochemical studies revealed that coated star ending carboxyl show good activity selectivity, thus demonstrating effectiveness applicability developed sensors DA.