Electrochemiluminescence modified electrodes based on RuSi@Ru(bpy)3(2+) loaded with gold functioned nanoporous CO/Co3O4 for detection of mycotoxin deoxynivalenol

Biosensors & Bioelectronics
Xiaohui LvQin Wei

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 5pg/mL to 100ng/mL with a low detection limit of 1pg/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.

References

Mar 15, 2005·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·James J Pestka, Alexa T Smolinski

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Citations

Jul 29, 2017·Chemical Reviews·Zdeněk FarkaPetr Skládal
Jan 10, 2018·Sensors·Mohammad RizwanMinhaz Uddin Ahmed
Sep 19, 2018·Nanomaterials·Pavel HorkyJiri Skladanka
Feb 4, 2021·The Analyst·Linxia WuDizhe Wei
Oct 12, 2021·Journal of Animal Science and Biotechnology·Runxian LiPingli He

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