Urea-Derived Carbonyl as an Active Site for Self-Catalysis in High-Efficiency Electrochemiluminescence Sensing at Ultralow Potential

Key Points

• This work aims to explore the role of urea-derived carbonyl in self-catalysis during electrochemiluminescence (ECL) sensing.
• Developed ECL systems utilizing urea-derived carbonyl as a catalyst.
• Investigated the efficiency of sensing at ultralow potential.
• Assessed performance with respect to sensitivity and interference.
• Provided insights into functional group-mediated self-catalysis in cathodic ECL.
• Achieved ultrasensitive sensing capabilities at low potentials with reduced interference.