2D Transition Metal Carbides (MXene) for Electrochemical Sensing: A Review

Area of Science:

• Materials Science
• Nanotechnology
• Analytical Chemistry

Background:

• MXenes, a class of 2D transition metal carbides, possess desirable properties like hydrophilicity, high electrical conductivity, and large surface area.
• Their ability to disperse in solvents and form composites makes them suitable for transducer applications in molecular sensing.
• MXene-modified supports offer a platform for immobilizing target molecules, enabling diverse sensing applications.

Purpose of the Study:

• To review recent advancements in MXene-modified materials for molecular sensing.
• To categorize and comprehensively discuss various analytes detected using MXene-based sensors.
• To provide insights into synthesis, electrochemical properties, surface chemistry, challenges, and future research directions.

Main Methods:

• Literature review focusing on MXene-modified materials for sensing applications.
• Categorization of analytes detected, including glucose, pharmaceuticals, metals, cancer markers, and more.
• Discussion of MXene synthesis, electrochemical properties, and surface chemistry relevant to sensing.

Main Results:

• MXene-based materials are increasingly utilized for sensing a wide range of analytes.
• The review categorizes analytes and details their detection using MXene platforms.
• Synthesis approaches, electrochemical characteristics, and surface chemistry of MXenes are presented.

Conclusions:

• MXene-modified materials represent a promising platform for advanced molecular sensing.
• Further research into MXene synthesis, properties, and applications is warranted.
• The review provides a comprehensive overview and outlook for MXene-based sensing technologies.