Electrochemiluminescence Enhanced by the Synergetic Effect of Porphyrin and Multi‐walled Carbon Nanotubes for Uric Acid Detection

Abstract The design and exploration of efficient, stable and environmentally compatible organic emitters for an electrochemiluminescence (ECL) sensor is a promising topic. Herein, a novel environmentally‐friendly luminophore, ZnBCBTP@MWCNTs, were fabricated via self‐assembly of porphyrin molecules (ZnBCBTP) onto multi‐walled carbon nanotubes (MWCNTs). The resulting luminophore ZnBCBTP@MWCNTs displayed not only the highly ECL property and but also the good accelerated electron mobility. Then, a label‐free ECL biosensor based ZnBCBTP@MWCNTs was constructed for the ultrasensitive detection of uric acid. Excitingly, this proposed ECL biosensor performed a good linear relationship in the range of 0–300 μM with a low detection limit of 1.4 μM, thus offering another reliable and feasible sensing platform for clinical bioanalysis with good selectivity, stability, and repeatability.