Fabrication and electrochemical characterization of polydopamine redox polymer modified screen-printed carbon electrode for the detection of guanine
Sensors and Actuators B: Chemical（2016）
Abstract
•Electrodeposition of polydopamine (PDA) redox polymer films onto screen-printed carbon electrode (SPCE).•Biocompatibility of the modified electrode, designated as PDA-SPCE, evaluated through sessile contact angle measurements.•Electrocatalytic activity of PDA-SPCE characterized by voltammetry, chronoamperometry and impedance spectroscopy.•The electrochemical signal of guanine was obtained at low potential and with good sensitivity.
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Key words
Square wave voltammetry,Cyclic voltammetry,Electrochemical impedance spectroscopy,Dopamine,Organocatalyst,Thin films
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