Physical insights from the Frumkin isotherm applied to electrolyte gated organic transistors as protein biosensors
Pamela Allison Manco Urbina, Marcello Berto, Pierpaolo Greco, Matteo Sensi, Simone Borghi, Marco Borsari, Carlo Augusto Bortolotti, Fabio Biscarini
Abstract
Frumkin isotherm is used to fit data obtained from OECT- and EGOFET-based Intrelukin-6 biosensors and compared to the Langmuir and Hill ones. The model allows extraction of the equilibrium constant K a and the Frumkin interaction parameter g′ .
Topics & Concepts
BiosensorElectrolyteMaterials scienceThermodynamicsNanotechnologyPhysical chemistryChemistryElectrodePhysicsConducting polymers and applicationsAnalytical Chemistry and SensorsElectrochemical Analysis and Applications