A Novel High-Performance Non-Enzymatic Electrochemical Glucose Sensor for Aqueous Media Based on MWCNT Modified with Aluminium/Zinc Layered Hydroxide-Ferulate

A novel non-enzymatic electrochemical glucose sensor based on aluminium/zinc layered hydroxide-ferulate (Al/ZLH-FA)-modified multi-walled carbon nanotubes (MWCNTs) was fabricated as a carbon paste electrode.The composite was morphologically characterized by transmission electron microscopy (TEM), while its electrochemical behaviour was evaluated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and squarewave voltammetry (SWV).Under optimized experimental conditions, the sensor exhibited a linear response to glucose concentrations ranging from 3 to 300 µmol L -1 , with a correlation coefficient (R 2 ) of 0.9984.The limit of detection (LOD) was calculated to be 0.05 µmol L -1 .Transmission electron microscopy (TEM) has been used to determine the morphology of Al/ZLH-FA and Al/ZLH-FA/MWCNT, respectively.Because of its remarkable selectivity and sensitivity, the Al/ZLH-FA/MWCNT composite electrode that was produced was useful for analytical applications.