Synthesis and modification of carbon dots for advanced biosensing application

Area of Science:

• Materials Science
• Nanotechnology
• Analytical Chemistry

Background:

• Carbonaceous nanomaterials, particularly carbon dots (CDs), are gaining significant attention for biosensing.
• CDs exhibit advantageous properties including small size, tunable optical characteristics, conductivity, and low cytotoxicity.
• These properties make CDs highly suitable for developing advanced biosensor platforms.

Purpose of the Study:

• To review synthesis methods (top-down and bottom-up) for carbon dots.
• To highlight strategies for modifying carbon dots for enhanced performance.
• To discuss the broad applications of carbon dots in various biosensor types.

Main Methods:

• Summarization of established and emerging synthesis routes for carbon dots.
• Analysis of surface functionalization and modification techniques for CDs.
• Compilation and categorization of carbon dot applications across different biosensing modalities.

Main Results:

• Carbon dots can be synthesized via both top-down and bottom-up approaches.
• Modification strategies significantly enhance the performance of carbon dots in biosensing.
• CDs have demonstrated efficacy in photoluminescence, electrochemiluminescence, chemiluminescence, electrochemical, and fluorescence biosensors.

Conclusions:

• Carbon dots are versatile nanomaterials with great potential for high-performance biosensor development.
• Further research into synthesis, modification, and application is warranted.
• CDs are poised to play a crucial role in the future of biosensing technology.