Design and synthesis of a cobalt-doped carbon dot nanozyme for colorimetric/fluorometric dual-mode detection of nitrite ions and antibacterial applications

Key Points

• To design and synthesize cobalt-doped carbon dots with enhanced sensory and antibacterial properties.
• Synthesis of cobalt-doped carbon dots using a hydrothermal method
• Assessment of peroxidase-like activity
• Evaluation of sensitivity to nitrite ions
• Testing antibacterial performance against E. coli and S. aureus
• Cobalt-doped carbon dots exhibited strong peroxidase-like activity
• High sensitivity detected for nitrite ions
• Demonstrated effective antibacterial performance against E. coli and S. aureus