Development of a flexible and disposable electrochemical sensor based on poly (butylene adipate-co-terephthalate) and graphite for hydroquinone sensing

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.creatorMaciel, Cristiane C.-
Autor(es): dc.creatorde Lima, Lucas F.-
Autor(es): dc.creatorFerreira, André L.-
Autor(es): dc.creatorde Araujo, William R.-
Autor(es): dc.creatorFerreira, Marystela-
Data de aceite: dc.date.accessioned2025-08-21T21:42:27Z-
Data de disponibilização: dc.date.available2025-08-21T21:42:27Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.snr.2022.100091-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/231634-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/231634-
Descrição: dc.descriptionWe propose the manufacture and optimization of a flexible electrochemical sensor composed of graphite and the polymer poly (butylene adipate-co-terephthalate) (PBAT). The characterization was performed by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), contact angle, Raman spectroscopy, mechanical tensile tests, and scanning electron microscopy (SEM). The electrochemical composite material shows a high electroactive area (0.52 cm²), with an electron transfer rate constant (k0) of 4.55 × 10−3 cm s−1 for potassium ferricyanide and good reproducibility (relative standard deviation (RSD) of 4.5%). As proof of potentiality, the composite sensor was applied for hydroquinone (HQ) detection using the Differential Pulse Voltammetry (DPV) technique. Under optimized manufacturing and instrumental parameters, a linear concentration ranging from 0.1 to 1.4 mmol L−1 HQ with a LOD of 1.01 × 10−6 mol L−1 and LOQ 3.4 × 10−6 mol L−1 were obtained using the flexible composite sensor. In addition, the proposed method was applied to the detection of HQ in the pharmaceutical ointment sample with good agreement between the labelled value and found by the proposed method. Besides, recovery values ranging from 91.85 to 101.37% were obtained, highlighting the adequate accuracy of the method. The sensors described here have the advantage of being flexible, disposable, reproducible (RSD = 4.5%), and of low manufacturing cost ($0.17 per device), which makes them attractive for portable analysis.-
Descrição: dc.descriptionPostgraduate Program in Materials Science and Technology - POSMAT São Paulo State University Júlio de Mesquita Filho (UNESP), São Paulo-
Descrição: dc.descriptionDepartment of Analytical Chemistry Institute of Chemistry State University of Campinas (UNICAMP), São Paulo-
Descrição: dc.descriptionCenter of Science and Technology for Sustainability (CCTS) Federal University of São Carlos (UFSCar), São Paulo-
Descrição: dc.descriptionPostgraduate Program in Materials Science and Technology - POSMAT São Paulo State University Júlio de Mesquita Filho (UNESP), São Paulo-
Idioma: dc.languageen-
Relação: dc.relationSensors and Actuators Reports-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDisposable device-
Palavras-chave: dc.subjectflexible electrochemical sensor-
Palavras-chave: dc.subjecthydroquinone-
Palavras-chave: dc.subjectthermoplastic composite material-
Título: dc.titleDevelopment of a flexible and disposable electrochemical sensor based on poly (butylene adipate-co-terephthalate) and graphite for hydroquinone sensing-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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