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Ultrasensitive detection of food colorant sunset yellow using nickel nanoparticles promoted lettuce-like spinel Co3O4 anchored GO nanosheets.
Balram, Deepak; Lian, Kuang-Yow; Sebastian, Neethu; Al-Mubaddel, Fahad S; Noman, Muhammad Tayyab.
Afiliación
  • Balram D; Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, ROC, Taiwan.
  • Lian KY; 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.
  • Sebastian N; Institute of Organic and Polymeric Materials, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei, 106, ROC, Taiwan.
  • Al-Mubaddel FS; 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.
  • Noman MT; 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.
Food Chem Toxicol ; 159: 112725, 2022 Jan.
Article en En | MEDLINE | ID: mdl-34856315
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%.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compuestos Azo / Nanocompuestos / Nanopartículas del Metal / Técnicas Electroquímicas / Colorantes de Alimentos Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Food Chem Toxicol Año: 2022 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compuestos Azo / Nanocompuestos / Nanopartículas del Metal / Técnicas Electroquímicas / Colorantes de Alimentos Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Food Chem Toxicol Año: 2022 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Reino Unido