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A sensor based on molecularly imprinted polymers (MIP) wasdeveloped for determination of 3-(3,4-Dichlorophenyl)-1,1-dimethylurea (diuron). The MIP were synthesized by free radicalpolymerization in wich diuron acted as template, methacrylic acid(MAA) acted as functional monomer and ethylene glycoldimethacrylate (EGDMA) acted as crosslinker. For construction ofthe sensor, glassy carbon electrode was modified with Nafion®and MIP/NIP (non imprinted polymer) to see the contribution ofMIP, as a film, in the diuron recognition. Differential PulseVoltammetry was used to the quantification of diuron in a range ofresponse 0.4 - 1.2 V in a PBS (pH=8). All parameters affecting thesensor were optimized. The sensor showed a linear response from1.00x10-5 to 9.616x10-5 M in PBS 0.1 M (pH=8). The limit ofdetection was 0.58x10-5 mol L-1. The nanostructured sensor wasprepared using carbon nanotubes and showed a 4 times greaterresponse than the glassy carbon, showing promising results.Indexado en ScopusRevisión por pare

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Nanostructured Sensors for Determination of 3-(3,4-Dichlorophenyl)-1,1-Dimethylurea Based in Molecularly Imprinted Polymers (MIPs) Deposited in Screen Printed Carbon Nanotubes