title: Electrochemiluminescence modified electrodes based on RuSi@Ru(bpy)3(2+) loaded with gold functioned nanoporous CO/Co3O4 for detection of mycotoxin deoxynivalenol.
abstract: Nanoporous cobalt (NPCo) with three-dimensional network nanostructure was obtained by selectively dealloying Al from CoAl alloy in a mild alkaline solution. Co3O4 grew further on the surface of NPCo and then NPCo/Co3O4 was obtained. Gold nanoparticles functionalized NPCo/Co3O4 (NPCo/Co3O4-Au) was used to fabricate electrochemiluminescence (ECL) modified electrodes for detecting mycotoxin deoxynivalenol (DON). In addition the introduction of AuNPs enhanced the conductivity, and NPCo/Co3O4-Au exhibited excellent catalytic properties for the luminescence of RuSi@Ru(bpy)3(2+). The fabricated ECL modified electrodes exhibited a high activity for DON in a wide linear range from 5 pg/mL to 100 ng/mL with a low detection limit of 1 pg/mL. The NPCo/Co3O4-Au based ECL modified electrodes displayed excellent stability and reproducibility, and successfully achieved the detection of DON in wheat flour with desirable results as well. The NPCo/Co3O4-Au possesses great application potential for ECL modified electrodes with sample detection, unique catalytic activity, and high structure stability.
authors: Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
authors: Xiaohui
authors: X
authors: Lv
authors: School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
authors: Yueyun
authors: Y
authors: Li
authors: Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
authors: Tao
authors: T
authors: Yan
authors: Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
authors: Xuehui
authors: X
authors: Pang
authors: Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
authors: Wei
authors: W
authors: Cao
authors: Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
authors: Bin
authors: B
authors: Du
authors: Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. Electronic address: wudan791108@163.com.
authors: Dan
authors: D
authors: Wu
authors: Key Laboratory of Chemical Sensing and Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
authors: Qin
authors: Q
authors: Wei
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry; D020099:Coated Materials, Biocompatible / Q000138:chemical synthesis; D003035:Cobalt / Q000737:chemistry; D003217:Conductometry / Q000295:instrumentation*; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006046:Gold / Q000737:chemistry; D008163:Luminescent Measurements / Q000295:instrumentation*; D053768:Metal Nanoparticles / Q000737:chemistry*; D009183:Mycotoxins / Q000032:analysis* / Q000737:chemistry; D058608:Nanopores / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry; D015203:Reproducibility of Results; D017975:Ruthenium Compounds / Q000737:chemistry; D012680:Sensitivity and Specificity; D014255:Trichothecenes / Q000032:analysis* / Q000737:chemistry
chemical_list: D020099:Coated Materials, Biocompatible; D009183:Mycotoxins; D010087:Oxides; D017975:Ruthenium Compounds; D014255:Trichothecenes; D002245:Carbon Dioxide; D003035:Cobalt; D006046:Gold; C007262:deoxynivalenol; C060728:cobalt oxide
keywords: Electrochemiluminescence; Modified electrodes; Mycotoxin deoxynivalenol; Nanoporous cobalt; RuSi@Ru(bpy)(3)(2+)