A ROS-competitive dual-potential ratiometric ECL immunosensor for ultrasensitive CA15-3 detection based on boron-doped defective NiSe catalysts.
Conventional luminol-based electrochemiluminescence (ECL) systems are constrained by low luminescence efficiency and stability, largely due to unstable hydrogen peroxide and inefficient dissolved oxygen conversion to reactive oxygen species (ROS). Here, the oxygen evolution reaction (OER) is harnessed to supply abundan...