Template-confined cobalt single-atom catalyst for biointerface applications: An ultrasensitive electrochemical biosensor for hydrogen peroxide from food safety to live cancer cells monitoring

Key Points

• The biosensor achieved remarkable sensitivity for hydrogen peroxide detection, enabling real-time monitoring.
• Key results revealed a detection limit of 0.1 μM in complex biological samples and food matrices.
• Assessment using a cobalt single-atom catalyst demonstrated efficiency for biointerface applications.
• Highlights the potential for improving safety measures and cancer diagnostics through innovative biosensor technologies.