An electrochemiluminescent sensor based on functionalized conjugated polymer dots for the ultrasensitive detection of Cu²⁺

Abstract

An ultrasensitive electrochemiluminescence (ECL) detection for Cu²⁺ was explored using the carboxyl functionalized poly(9,9-dioctylfluorenyl-2,7-diyl) (PS-COOH-co-PFO) dots as the signal label without adding any coreactant.