Electrochemical Impedance Spectroscopy as a Tool To Investigate the Electrochemical Behavior of Beetroot and Spinach Extracts.

Fernanda Gonçalves de Oliveira, Tatiana de Muros Amaral Barcellos, Talita Luisa Ribeiro Weberling, Thiago Silveira Alvares, Rodrigo de Siqueira Melo

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Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Fernanda Gonçalves de OliveiraNutrition and Exercise Metabolism Research Group, Food and Nutrition Institute, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Avenida Aluízio da Silva Gomes, 50, Bairro da Glória, CEP: 27930-560 Macaé, Rio de Janeiro, Brazil.ORCID https://orcid.org/0009-0000-9961-9740

Tatiana de Muros Amaral BarcellosNutrition and Exercise Metabolism Research Group, Food and Nutrition Institute, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Avenida Aluízio da Silva Gomes, 50, Bairro da Glória, CEP: 27930-560 Macaé, Rio de Janeiro, Brazil.ORCID https://orcid.org/0009-0001-3352-2986

Talita Luisa Ribeiro WeberlingNutrition and Exercise Metabolism Research Group, Food and Nutrition Institute, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Avenida Aluízio da Silva Gomes, 50, Bairro da Glória, CEP: 27930-560 Macaé, Rio de Janeiro, Brazil.ORCID https://orcid.org/0009-0003-3916-8716

Thiago Silveira AlvaresNutrition and Exercise Metabolism Research Group, Food and Nutrition Institute, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Avenida Aluízio da Silva Gomes, 50, Bairro da Glória, CEP: 27930-560 Macaé, Rio de Janeiro, Brazil.ORCID https://orcid.org/0000-0002-2261-8501

Rodrigo de Siqueira MeloElectroanalytics and Advanced Materials Group, Multidisciplinary Institute of Chemistry, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Avenida Aluízio da Silva Gomes, 50, Bairro da Glória, CEP: 27930-560 Macaé, Rio de Janeiro, Brazil.ORCID https://orcid.org/0000-0002-0816-462X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The increasing demand for rapid and reliable methods to characterize the electrochemical behavior of plant-derived bioactive materials has motivated the exploration of alternative electroanalytical approaches. In this study Electrochemical Impedance Spectroscopy (EIS) is employed as the primary analytical tool to characterize interfacial properties of carbon paste electrodes (CP) modified with beetroot (BET) and spinach (SPI) extracts. Impedance parameters were extracted using equivalent circuit modeling and correlated with the antioxidant composition of the extracts. Modification with beetroot extract led to a pronounced decrease in the primary charge-transfer resistance from 6.94 × 10

Identifiers

PMID42179629

DOI10.1021/acsomega.6c00723

PMCPMC13191543

What Socratic holds

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.