Developments and applications of nanomaterial-based carbon paste electrodes.

Area of Science:

• Electrochemistry
• Materials Science
• Analytical Chemistry

Background:

• Carbon paste electrodes (CPEs) are versatile platforms for electrochemical sensing.
• Nanomaterials offer enhanced properties for improved sensor performance.
• Electrochemical sensing is crucial for analyzing biological, pharmaceutical, and environmental samples.

Purpose of the Study:

• To review the progress in nanomaterial-based carbon paste electrodes for electrochemical sensing over the past ten years.
• To provide an overview of applications in biological species, pharmaceutical compounds, and environmental pollutants.
• To summarize available methods and nanomaterials.

Main Methods:

• Review of recent literature on nanomaterial-based CPEs.
• Categorization of sensors based on target analytes (biological, pharmaceutical, environmental).
• Compilation of electrochemical techniques (e.g., differential pulse voltammetry, square wave voltammetry, amperometry) and nanomaterials used.

Main Results:

• Significant advancements in nanomaterial-based CPEs for detecting antioxidants, catecholamines, amino acids, pesticides, and heavy metal ions.
• Demonstration of diverse electrochemical methods and nanomaterials enhancing sensor sensitivity and selectivity.
• Comprehensive tables summarizing various applications and techniques.

Conclusions:

• Nanomaterial-based carbon paste electrodes have shown remarkable progress in electrochemical sensing.
• Future challenges include further enhancing stability, selectivity, and real-world applicability.
• Potential trends point towards integrated sensing systems and novel nanomaterial development.