Emerging trends in CDs@hydrogels composites: from materials to applications

Area of Science:

• Materials Science
• Nanotechnology
• Polymer Chemistry

Background:

• Carbon dots (CDs) are nanoscale carbon materials with unique optical properties and biocompatibility.
• CDs often face aggregation and oxidation issues in aqueous environments, limiting their applications.
• Hydrogels offer a stable, water-retentive matrix that can enhance CD performance.

Purpose of the Study:

• To review recent advances in the synthesis and characterization of Carbon dots@hydrogels (CDs@hydrogels) composites.
• To highlight the diverse applications of CDs@hydrogels.
• To discuss current challenges and future prospects for CDs@hydrogels systems.

Main Methods:

• Summarizing recent literature on the synthesis of CDs@hydrogels.
• Characterizing the properties of CDs integrated with natural and synthetic hydrogels.
• Reviewing studies on the application performance of these composite materials.

Main Results:

• CDs@hydrogels exhibit enhanced fluorescence, stability, and functionality compared to bare CDs.
• These composites show promise in fluorescence sensing, adsorption, drug delivery, antibacterial activity, flexible electronics, and energy storage.
• The hydrogel matrix effectively stabilizes CDs, mitigating aggregation and oxidation.

Conclusions:

• CDs@hydrogels are versatile composite materials with significant potential for various technological applications.
• Further research is needed to overcome current challenges and fully realize the capabilities of these novel functional materials.
• The tunable nature of hydrogels allows for tailored properties of CDs@hydrogels for specific uses.