CuBi2O4@NH2-UiO-66 loaded with multi-walled carbon nanotubes self-reference ratiometric electrochemical sensor for highly sensitive detection of caffeic acid in beverages

Key Points

• Caffeic acid detection is highly sensitive with the developed electrochemical sensor.
• The sensor utilizes multi-walled carbon nanotubes to enhance detection capabilities significantly.
• Ratiometric analysis provides accurate measurement of caffeic acid concentration in various beverages.
• Further applications in food safety and quality control may be supported by this technology.