Sensitive and selective imprinted electrochemical sensor for p-nitrophenol based on ZnO nanoparticles/carbon nanotubes doped chitosan film

► We developed a highly sensitive and selective electrochemical sensor. ► Multiwall carbon nanotubes and ZnO nanoparticles act as signal amplification materials. ► The sensor displayed excellent sensitivity and selectivity towards p-nitrophenol. ► The sensor as applied for measurements in real samples.