Co-immobilization of DNAzyme and horseradish peroxidase via biomineralization for electrochemical sensing of antibiotics

Key Points

• Electrochemical sensing of antibiotics is achieved using co-immobilized enzymes.
• The combination of DNAzyme and horseradish peroxidase improves sensitivity and specificity for antibiotic detection.
• Biomineralization techniques facilitate the co-immobilization of the two enzymes, enhancing their functionality.
• This method highlights a possible future strategy for rapid monitoring of antibiotic levels.