A polymer dot based aggregation-induced electrochemiluminescent sensor for sensitive analysis of tea polyphenols

Leveraging electron transfer between co-reactant radical species and tea polyphenols (TPs), we established a quantitative relationship between the aggregation-induced electrochemiluminescence response of polymer dots and TP concentration, enabling TP detection. The fabricated sensor demonstrates favorable analysis performance with a low detection limit of 1.34 ng mL^-1, indicating its application potential in food-safety analysis.