Electrochemical Patterning of Palladium Nanoparticles on a Single‐Walled Carbon Nanotube Platform and Its Application to Glucose Detection

Abstract

Abstract Arrays of palladium nanoparticles (Pd NPs) were fabricated on flexible single‐walled carbon nanotube (SWCNT) films, and the fabricated Pd NPs/SWCNT films were employed as electrodes for electrochemical glucose detection. Palladium particles with an average diameter of 20–40 nm were distributed homogeneously on the SWCNT film. The Pd NPs/SWCNT electrode displayed a good detection limit of 3.4 µM and two linear ranges for glucose concentration. Sensitivities were 313.9±4.8 µA mM −1 cm −2 and 155.2±2.6 µA mM −1 cm −2 respectively. Moreover, the Pd NPs/SWCNT showed high selectivity for glucose in the presence of L ‐ascorbic acid as an interfering compound.