Disposable p-coumaric acid sensor containing reduced graphene oxide, nickel nanoparticles and biodegradable molecularly imprinted polymer for fruit peel analysis

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBuffon, Edervaldo-
Autor(es): dc.creatorStradiotto, Nelson Ramos-
Data de aceite: dc.date.accessioned2025-08-21T18:55:38Z-
Data de disponibilização: dc.date.available2025-08-21T18:55:38Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jfca.2023.105186-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249617-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249617-
Descrição: dc.descriptionThis work reports the development of a disposable molecularly imprinted electrochemical sensor based on the electropolymerization of 3-indoleacetic acid on an electrode containing reduced graphene oxide and nickel nanoparticles for the sensitive and selective detection of p-coumaric acid. The molecularly imprinted sensor was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. The obtained results showed that reduced graphene oxide and nickel nanoparticles increased the sensitivity of the sensor for selective recognition of p-coumaric acid. Under optimal conditions, the developed sensor presented linear concentration ranges from 1.0 × 10−10 to 1.0 × 10−8 mol L−1. The detection and quantification limits calculated for this sensor were 8.1 × 10−11 and 2.7 × 10−10 mol L−1, respectively. The proposed device exhibited excellent selectivity, repeatability and stability over time, as well as good accuracy for the detection of p-coumaric acid. As a proof of concept, the sensor was applied for the determination of this molecule in banana and orange peels. The mean recovery values obtained during the analyses ranged from 96% to 102%, with relative standard deviations of ≤ 4.8%.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionBioenergy Research Institute São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionBioenergy Research Institute São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionFAPESP: #2017/22401-8-
Descrição: dc.descriptionFAPESP: #2019/13818-8-
Idioma: dc.languageen-
Relação: dc.relationJournal of Food Composition and Analysis-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject3-Indoleacetic acid-
Palavras-chave: dc.subjectDisposable molecularly imprinted electrochemical sensor-
Palavras-chave: dc.subjectFruit peels-
Palavras-chave: dc.subjectNickel nanoparticles-
Palavras-chave: dc.subjectp-Coumaric acid-
Palavras-chave: dc.subjectReduced graphene oxide-
Título: dc.titleDisposable p-coumaric acid sensor containing reduced graphene oxide, nickel nanoparticles and biodegradable molecularly imprinted polymer for fruit peel analysis-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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