Local charge engineering endows Fe and N co-modified MWCNTs with sensitive dopamine electrochemical detection in biofluids

Key Points

• Sensitive dopamine detection achieved in biofluids with engineered MWCNTs, enhancing performance significantly.
• Key evidence shows an increase in sensitivity of dopamine detection by at least 30% compared to unmodified sensors.
• Charge engineering applied to co-modified iron and nitrogen multi-walled carbon nanotubes for improved electrochemical performance.
• The findings could lead to more efficient biosensors, but further testing may be needed to confirm stability in real-world applications.