Author, as appears in the article.: Guadarrama-Fernández L; Novell M; Blondeau P; Andrade F
Department: Química Analítica i Química Orgànica
URV's Author/s: Andrade, Francisco Javier / Blondeau, Pascal Jean Claude Leon / NOVELL RECASENS, MARTA
Keywords: Potentiometric detection Paper-based platforms Glucose sensing Electrochemical sensor paper-based platforms glucose sensing electrochemical sensor
Abstract: © 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.
Thematic Areas: 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
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 03088146
Author's mail: pascal.blondeau@urv.cat franciscojavier.andrade@urv.cat
Author identifier: 0000-0003-1331-5055 0000-0003-1199-2837
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S030881461830894X
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Food Chemistry. 265 64-69
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
Article's DOI: 10.1016/j.foodchem.2018.05.082
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
Publication Type: Journal Publications
Repositori URV