Related Experiment Video
Updated: Jun 14, 2026

Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing
Published on: June 1, 2012
Voltammetric sensor for buzepide methiodide determination based on TiO2 nanoparticle-modified carbon paste electrode
Shankara S Kalanur1, Jaldappagari Seetharamappa, S N Prashanth
1Department of Chemistry, Karnatak University, Pavate Nagar, Dharwad 580003, India.
This study introduces a novel nano-material modified electrode for detecting the antidepressant buzepide methiodide (BZP). The developed method offers sensitive and rapid electrochemical sensing of BZP in biological samples.
Area of Science:
- Electrochemistry
- Materials Science
- Analytical Chemistry
Background:
- Carbon paste electrodes (CPEs) are widely used in electrochemical sensing.
- Developing sensitive and selective methods for antidepressant detection is crucial.
- Titanium dioxide (TiO2) nanoparticles offer unique electrochemical properties.
Purpose of the Study:
- To develop a sensitive electrochemical sensor for buzepide methiodide (BZP).
- To investigate the effect of TiO2 nanoparticles on the electrochemical detection of BZP.
- To apply the developed sensor for BZP determination in biological matrices.
Main Methods:
- Preparation of a nano-material modified carbon paste electrode (CPE) by incorporating TiO2 nanoparticles.
- Electrochemical characterization and optimization of the sensor.
- Quantification of BZP using cyclic voltammetry and differential pulse voltammetry.
Main Results:
- TiO2 nanoparticles enhanced electron transfer kinetics and the oxidation signal of BZP.
- The modified electrode showed a negative shift in peak potential for BZP oxidation.
- A linear relationship was observed between BZP concentration (5 x 10(-8) to 5 x 10(-5)M) and peak current.
- A low detection limit of 8.2 x 10(-9)M was achieved.
- Successful determination of BZP in human blood serum and urine samples with good recoveries.
Conclusions:
- The TiO2-modified CPE provides a sensitive, rapid, and convenient electrochemical method for BZP determination.
- The enhanced electrochemical performance is attributed to the properties of TiO2 nanoparticles.
- The developed sensor is suitable for the analysis of BZP in real biological samples.
More Related Videos
12:47Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
Published on: May 2, 2014
09:15Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors
Published on: November 22, 2016
Related Concept Videos
Voltammetric Techniques: Pulse Voltammetry
Voltammetric Techniques: Cyclic Voltammetry
Voltammetry: Overview
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
Controlled-Potential Coulometry: Electrolytic Methods
The chosen potential ensures...
Potentiometry: Membrane Electrodes
Voltammetry: Stripping Methods
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...