Autor según el artículo: Guadarrama-Fernández L; Novell M; Blondeau P; Andrade F

Departamento: Química Analítica i Química Orgànica

Autor/es de la URV: Andrade, Francisco Javier / Blondeau, Pascal Jean Claude Leon / NOVELL RECASENS, MARTA

Palabras clave: Potentiometric detection Paper-based platforms Glucose sensing Electrochemical sensor paper-based platforms glucose sensing electrochemical sensor

Resumen: © 2018 Elsevier Ltd A new biosensor for monitoring glucose levels in beverages is presented. The measurements are performed using potentiometric detection. Working electrodes are made using platinised paper as support and a biocompatible polymeric membrane made of a mixture of polyvinyl alcohol and chitosan containing glucose oxidase as the recognition layer. The system is based on the detection of the hydrogen peroxide generated by an enzymatic reaction performed in a highly sensitive, selective and simple way. The biosensors display suitable analytical performance (sensitivity −119.6 ± 6.4 mV/dec in the 0.03–1.0 mM range with a limit of detection of 0.02 mM). Determination of glucose in commercial orange juices is presented. These results were validated against conventional standard methods, showing good accuracy and fast analytical response. The methodology presented herein does not require complex samples treatment, offering an alternative to conventional methods, particularly for determinations performed with minimal expertise and without a laboratory infrastructure.

Áreas temáticas: Zootecnia / recursos pesqueiros Saúde coletiva Química Odontología Nutrition & dietetics Nutrição Medicine (miscellaneous) Medicina veterinaria Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Interdisciplinar Geociências Food science & technology Food science Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Enfermagem Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, applied Biotecnología Biodiversidade Astronomia / física Analytical chemistry Administração pública e de empresas, ciências contábeis e turismo

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 03088146

Direcció de correo del autor: pascal.blondeau@urv.cat franciscojavier.andrade@urv.cat

Identificador del autor: 0000-0003-1331-5055 0000-0003-1199-2837

Fecha de alta del registro: 2023-02-19

Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion

Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S030881461830894X

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Food Chemistry. 265 64-69

Referencia de l'ítem segons les normes APA: Guadarrama-Fernández L; Novell M; Blondeau P; Andrade F (2018). A disposable, simple, fast and low-cost paper-based biosensor and its application to the determination of glucose in commercial orange juices. Food Chemistry, 265(), 64-69. DOI: 10.1016/j.foodchem.2018.05.082

DOI del artículo: 10.1016/j.foodchem.2018.05.082

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2018

Tipo de publicación: Journal Publications