Ferrite-Based Hierarchical Nanostructures for Electrochemical Sensing: Synthesis, Interface Engineering, and Performance Insights

Authors : Iqra Khalid, Abdullah Faheem, Akbar Ali

Pages : 14-26

Doi:10.56171/ojn.1778109

View : 138 | Download : 212

Publication Date : 2025-12-29

Article Type : Research Paper

Abstract :A non-enzymatic choline biosensor was demonstrated with chitosan (CS) supported NiFe2O4 modified on a carbon paste electrode (CPE). NiFe2O4 is synthesized via the hydrothermal method to study the choline chloride (ChCl) behavior towards the distinctive performance of choline. The prepared sample with CPE. The synthesized NiFe2O4 was examined with different characterization techniques to confirm the formation of the specified material. X-ray diffraction (XRD), Fourier-Transmission Infrared spectroscopy (FTIR), and Raman Spectroscopy were used to optimize and evaluate the various properties of the prepared material. XRD confirmed the cubic inverse spinel crystal structure of NiFe2O4 with a crystallite size of 14nm, while FTIR spectra revealed the stretching and bending vibration over the IR frequency range, and modes confirmed through Raman spectra frequency range. The modified electrode of NiFe2O4/CS/CPE was used to perform electrochemical studies by voltammogram and evaluated through Cyclic voltammetry (CV). The CV curves taken at different working ranges (5-15μL) of potential 0.0- +1.0 V and the analyte signal of LoD (0.002μM), considering the S/N=3 across the current system, with the linear regression (R2) of 0.99. The prepared electrode showed a low (LoD) in the smaller range of the chloride choline and demonstrated a good response.
Keywords : Nanomaterials, Nanocomposites, Ferrites, Chitosan, Biosensor, Electrochemical Sensor

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