Abstract

Electrochemiluminescence technology is widely used in the highly sensitive detection of environmental pollutants, biologically active molecules, nucleic acids and tumor markers based on its high sensitivity, good selectivity and excellent stability. Quantum dots have become an ideal electrochemiluminescence luminescent material due to their amazing optical properties, good water solubility and good electrochemiluminescence monochromaticity. The further research on signal transduction strategies of electrochemiluminescence sensors based on II-VI quantum dots on will contribute to the construction of advanced sensors. Therefore, this review summarizes the electrochemiluminescence mechanism and electrochemiluminescence sensing signal transduction strategies based on II-VI quantum dots. Three electrochemiluminescence sensing mode (signal-off transduction strategy, signal-on transduction strategy and ratiometric transduction strategy) are introduced emphatically. Finally, the challenges and future development directions faced by II-VI quantum dots based- electrochemiluminescence sensors are discussed according to the development status of the II-VI quantum dot electrochemiluminescence sensing signal transduction strategy and its application in electrochemiluminescence sensors.

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