Electroanalysis · 2020 · 14 citations · 33 references
Natural SciencesChemical EngineeringChemistryElectrochemistryNanomaterialsSensorsElectroanalytical ChemistryElectrochemical BiosensorsElectrochemical DetectionElectrochemical SensorsEnzymatic BiosensorsNanotubesCarbon Nanotube Sensor MaterialsElectrochemical BiosensingElectrochemical NanobiosensorsGlucose SensingGlucose SensorsMolecularly Imprinted Polymer SensorsMulti-walled Carbon NanotubesSelectivity
Abstract In this paper a new enzymeless electrochemical glucose sensor based on carboxylated multiwalled carbon nanotubes (cMWCNT) with immobilized nickel (II) acetylacetonate (NiL) as electrocatalyst and molecularly imprinted polymer fabricated through electrostatic self‐assembling of polyethyleneimine (PEI) crosslinked with glutaric dialdehyde (GDA). The electrocatalytic properties of NiL and PEI‐cMWCNT, PEI‐GDA and PEI‐glucose interactions is studied for the first time. Developed sensor demonstrates excellent electrocatalytic activity towards glucose oxidation and possessing high stability, sensitivity of 5897.42±161.00 μA ⋅ mM −1 cm −2 , LOD of 0.138 mM and high selectivity in the presence of creatinine, L‐alanine, glycine, D‐glutamine, uric acid, L‐ascorbic acid, urea and BSA.
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