Ultrasensitive detection of food colorant sunset yellow using nickel nanoparticles promoted lettuce-like spinel Co3O4 anchored GO nanosheets

Deepak Balram; Kuang-Yow Lian; Neethu Sebastian; Fahad S Al-Mubaddel; Muhammad Tayyab Noman

doi:10.1016/j.fct.2021.112725

Ultrasensitive detection of food colorant sunset yellow using nickel nanoparticles promoted lettuce-like spinel Co₃O₄ anchored GO nanosheets

Food Chem Toxicol. 2022 Jan:159:112725. doi: 10.1016/j.fct.2021.112725. Epub 2021 Nov 29.

Authors

Deepak Balram¹, Kuang-Yow Lian², Neethu Sebastian³, Fahad S Al-Mubaddel⁴, Muhammad Tayyab Noman⁵

Affiliations

¹ Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, ROC, Taiwan.
² Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, ROC, Taiwan. Electronic address: kylian@ntut.edu.tw.
³ Institute of Organic and Polymeric Materials, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, ROC, Taiwan.
⁴ Department of Chemical Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia; Fellow: King Abdullah City for Atomic and Renewable Energy: Energy Research and Innovation Center (ERIC), Riyadh, 11451, Saudi Arabia.
⁵ Department of Machinery Construction, Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec, Studentská 1402/2, 461 17 Liberec 1, Czech Republic.

PMID: 34856315
DOI: 10.1016/j.fct.2021.112725

Abstract

Synthetic food colorants are extensively used across the globe regardless of the fact that they induce deleterious side effects when used in higher amounts. In this work, a novel electrochemical sensor based on nickel nanoparticles doped lettuce-like Co₃O₄ anchored graphene oxide (GO) nanosheets was developed for effective detection of sulfonated azo dye sunset yellow widely used as a food colorant. Hydrothermal synthesis was adopted for the preparation of lettuce-like spinel Co₃O₄ nanoparticles and Ni-Co₃O₄ NPs/GO nanocomposite was prepared using ecofriendly and economical sonochemical method. The prepared ternary nanocomposite meticulously fabricated on a screen-printed carbon electrode exhibited remarkable electrocatalytic activity towards sunset yellow determination. This is apparent from the resultant well-defined and intense redox peak currents of Ni-Co₃O₄ NPs/GO nanocomposite modified electrode at very low potentials. The developed sunset yellow sensor exhibited a high sensitivity of 4.16 μA μM^-1 cm^-2 and a nanomolar detection limit of 0.9 nM in the linear range 0.125-108.5 μM. Furthermore, experiments were conducted to affirm excellent stability, reproducibility, repeatability, and selectivity of proposed sensor. The practicality of sunset yellow determination using the developed sensor was analyzed in different varieties of food samples including jelly, soft drink, ice cream, and candy resulting in recovery in the range of 96.16%-102.56%.

Keywords: Azo dye; Co(3)O(4); Electrochemical sensor; Food additive; Sunset yellow.

MeSH terms

Aluminum Oxide / chemistry
Azo Compounds / analysis*
Cobalt / chemistry
Electrochemical Techniques / methods*
Food Coloring Agents / analysis*
Graphite
Limit of Detection
Linear Models
Magnesium Oxide / chemistry
Metal Nanoparticles / chemistry*
Nanocomposites / chemistry*
Nickel / chemistry
Oxides / chemistry
Reproducibility of Results

Substances

Azo Compounds
Food Coloring Agents
Oxides
cobalt tetraoxide
graphene oxide
spinell
Magnesium Oxide
Cobalt
Graphite
Nickel
6-hydroxy-5-((p- sulfophenyl)azo)-2-naphthalenesulfonic acid disodium salt
Aluminum Oxide