title: CdTe quantum dots@luminol as signal amplification system for chrysoidine with chemiluminescence-chitosan/graphene oxide-magnetite-molecularly imprinting sensor.
abstract: A sensitive chemiluminescence (CL) sensor based on chemiluminescence resonance energy transfer (CRET) in CdTe quantum dots@luminol (CdTe QDs@luminol) nanomaterials combined with chitosan/graphene oxide-magnetite-molecularly imprinted polymer (Cs/GM-MIP) for sensing chrysoidine was developed. CdTe QDs@luminol was designed to not only amplify the signal of CL but also reduce luminol consumption in the detection of chrysoidine. On the basis of the abundant hydroxy and amino, Cs and graphene oxide were introduced into the GM-MIP to improve the adsorption ability. The adsorption capacities of chrysoidine by both Cs/GM-MIP and non-imprinted polymer (Cs/GM-NIP) were investigated, and the CdTe QDs@luminol and Cs/GM-MIP were characterized by UV-vis, FTIR, SEM and TEM. The proposed sensor can detect chrysoidine within a linear range of 1.0×10(-7) - 1.0×10(-5) mol/L with a detection limit of 3.2×10(-8) mol/L (3δ) due to considerable chemiluminescence signal enhancement of the CdTe quantum dots@luminol detector and the high selectivity of the Cs/GM-MIP system. Under the optimal conditions of CL, the CdTe QDs@luminol-Cs/GM-MIP-CL sensor was used for chrysoidine determination in samples with satisfactory recoveries in the range of 90-107%.
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Huimin
authors.initials: H
authors.lastname: Duan
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Leilei
authors.initials: L
authors.lastname: Li
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Xiaojiao
authors.initials: X
authors.lastname: Wang
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Jianbo
authors.initials: J
authors.lastname: Li
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. Electronic address: chm_luocn@ujn.edu.cn.
authors.forename: Chuannan
authors.initials: C
authors.lastname: Luo
mesh_terms: D000327:Adsorption; D019187:Cadmium Compounds / Q000737:chemistry*; D048271:Chitosan / Q000737:chemistry*; D052203:Ferrosoferric Oxide / Q000737:chemistry; D031541:Fluorescence Resonance Energy Transfer; D006108:Graphite / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods*; D008165:Luminol / Q000737:chemistry*; D054802:Molecular Imprinting / Q000295:instrumentation*; D010087:Oxides / Q000737:chemistry; D045663:Quantum Dots / Q000737:chemistry* / Q000648:ultrastructure; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013691:Tellurium / Q000737:chemistry*; D010128:p-Aminoazobenzene / Q000031:analogs & derivatives* / Q000737:chemistry
chemical_list: D019187:Cadmium Compounds; D010087:Oxides; C005562:chrysoidine; D010128:p-Aminoazobenzene; D008165:Luminol; D006108:Graphite; D048271:Chitosan; D013691:Tellurium; C028337:cadmium telluride; D052203:Ferrosoferric Oxide
keywords: CdTe QDs@luminol; chemiluminescence resonance energy transfer; chrysoidine; magnetic graphene oxide; molecularly imprinted polymer