Author, as appears in the article.: Estivill, MC; Yazza, AA; Blondeau, P; Andrade, FJ
Department: Química Analítica i Química Orgànica
URV's Author/s: Andrade, Francisco Javier / Blondeau, Pascal Jean Claude Leon
Keywords: Potassium Pedot:pss Paper-based sensors Organic electrochemical transistors Ion detection Field-effect transistor potassium pedot:pss paper-based sensors organic electrochemical transistors electrodes array
Abstract: The development and optimization of a paper-based ion-selective organic electrochemical transistor (IS-OECT) with an outstanding analytical performance is presented. The combination of thick-film transistor technology with a suitable optimization of the ion-selective membrane composition and thickness allows reaching sensitivities of up to 2.50 mA/decade, which is more than one order of magnitude higher than other similar devices reported up to date. The system shows good selectivity, allowing the detection of low concentrations of potassium in high saline concentrations, and a linear range from 0.1 mM to 100 mM, which covers the relevant clinical range of K+ in blood. A calibration curve for K+ in artificial serum between 1 and 10 mM shows changes in concentrations down to 0.05 mM can be discriminated. Furthermore, the device can be made with a simple manufacturing process, such as drop casting, on low-cost substrate materials and can be operated with a gate voltage of 0 V. This IS-OCET offers promising avenues for developing ion-sensing platforms for the point of need.
Thematic Areas: Surfaces, coatings and films Química Odontología Nutrição Metals and alloys Medicina ii Medicina i Materials chemistry Materiais Interdisciplinar Instruments & instrumentation Instrumentation Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Electronic, optical and magnetic materials Electrochemistry Electrical and electronic engineering Educação física Educação Economia Condensed matter physics Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, analytical Biotecnología Biodiversidade Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: pascal.blondeau@urv.cat franciscojavier.andrade@urv.cat
Author identifier: 0000-0003-1331-5055 0000-0003-1199-2837
Record's date: 2024-02-17
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.sciencedirect.com/science/article/pii/S0925400523017458
Papper original source: Sensors And Actuators B-Chemical. 401
APA: Estivill, MC; Yazza, AA; Blondeau, P; Andrade, FJ (2024). Ion-selective organic electrochemical transistors for the determination of potassium in clinical samples. Sensors And Actuators B-Chemical, 401(), -. DOI: 10.1016/j.snb.2023.135027
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1016/j.snb.2023.135027
Entity: Universitat Rovira i Virgili
Journal publication year: 2024
Publication Type: Journal Publications
Repositori URV