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Updated: Jun 26, 2026
A Novel Technique for Generating and Observing Chemiluminescence in a Biological Setting
Published on: March 9, 2017
Electrochemiluminescence from Ru(bpy)(3)2+ immobilized in
Chunyan Sun1, Wu Lu, Yanfang Gao
1Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, China.
Abstract:
Electrochemical behavior and electrogenerated chemiluminescence (ECL) of tris(2,2'-bipyridyl)ruthenium(II) (Ru(bpy)(3)(2+)) immobilized in poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)-poly(vinyl alcohol) (PEDOT/PSS-PVA) composite films via ion-exchange have been investigated with tripropylamine (TPA) as the co-reactant at a glassy carbon electrode. The immobilized Ru(bpy)(3)(2+) performed a surface-controlled electrode reaction. The Ru(bpy)(3)(2+) modified electrode showed a fast ECL response to TPA, and was used for the ECL detection of TPA with high sensitivity. The ECL intensity was linearly related to concentrations of TPA over the range from 0.50 micromol L(-1) to 0.80 mmol L(-1), and the detection limit was 0.10 micromol L(-1) (S/N=3). The as-prepared electrode exhibited good precision and long-term stability for TPA determination.
