Recent advances in biological molecule detection based on a three-dimensional graphene structure

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Graphene's unique electrical properties make it valuable for electrochemical detection.
• Two-dimensional (2D) graphene sheets have limitations in functional properties.
• Macroscopic three-dimensional (3D) graphene structures are needed to enhance detection capabilities.

Purpose of the Study:

• To review preparation methods for 3D graphene structures.
• To highlight the advantages of 3D graphene over 2D graphene for electrochemical sensing.
• To discuss applications of 3D graphene in detecting biological molecules, bacteria, and cells.

Main Methods:

• Self-assembly
• Chemical vapor deposition
• Template methods
• 3D printing

Main Results:

• 3D graphene structures exhibit enhanced functional properties, including large specific surface area and ease of nanomaterial loading.
• These structures enable improved detection performance in electrochemical sensors.
• Applications span the detection of biological molecules, bacteria, and cells.

Conclusions:

• 3D graphene composites offer superior performance for electrochemical sensors.
• The reviewed preparation methods facilitate the development of advanced biosensing platforms.
• This work provides a reference for future research in 3D graphene-based electrochemical sensors.