title: A novel electrochemiluminescence sensor based on Ru(bpy)₃²⁺/N-doped carbon nanodots system for the detection of bisphenol A.
abstract: A novel Ru(bpy)3(2+)-based electrochemiluminescence (ECL) sensing platform, using N-doped carbon nanodots (N-C dots) as co-reactant, was established for the sensitive and selective detection of bisphenol A (BPA). N-C dots not only could enhance the ECL signal, but also significantly improved the reproducibility and stability of Ru(bpy)3(2+) ECL system. The developed ECL sensing system was sensitive to detect BPA based on its efficient quenching effect on Ru(bpy)3(2+)/N-C dots. The N-C dots-enhanced ECL mechanism and BPA-quenched ECL mechanism were investigated. Under the optimum conditions, the inhibited ECL intensity was in good linear relationship versus the concentration of BPA in the range of 0.03-1.0 μM with the detection limit of 10 nM. The relative standard deviation (RSD) for 25 successive measurements with one sensor was 1.1% and for eight different sensors was 2.5%, respectively. The fabricated sensing platform was successfully applied for the detection of BPA in baby bottle and nipple, and relatively satisfactory recoveries were obtained.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Libo
authors.initials: L
authors.lastname: Li
authors.affiliation: College of Life Science, Jilin University, Changchun, Jilin 130012, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
authors.forename: Xueping
authors.initials: X
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China. Electronic address: youty@ciac.jl.cn.
authors.forename: Tianyan
authors.initials: T
authors.lastname: You
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D001559:Benzhydryl Compounds / Q000032:analysis*; D002244:Carbon / Q000737:chemistry*; D056831:Coordination Complexes; D055664:Electrochemical Techniques; D008163:Luminescent Measurements; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D010636:Phenols / Q000032:analysis*; D013499:Surface Properties; D017975:Ruthenium Compounds; D000098826:Bisphenol A Compounds
chemical_list: D015082:2,2'-Dipyridyl; D001559:Benzhydryl Compounds; D002244:Carbon; D056831:Coordination Complexes; D010636:Phenols; C547232:tris(2,2-bipyridine)-ruthenium(II); D017975:Ruthenium Compounds; C006780:bisphenol A; D000098826:Bisphenol A Compounds
keywords: Bisphenol A; Electrochemiluminescence; N-doped carbon nanodots; Ru(bpy)(3)(2+)