Recent Advances in Optical, Electrochemical and Field Effect pH Sensors
Federico Maria Vivaldi, Pietro Salvo, Noemi Poma, Andrea Bonini, Denise Biagini, Lorenzo Del Noce, Bernardo Melai, Fabio Lisi, Fabio Di Francesco
Abstract
Although its first definition dates back to more than a century ago, pH and its measurement are still studied for improving the performance of current sensors in everyday analysis. The gold standard is the glass electrode, but its intrinsic fragility and need of frequent calibration are pushing the research field towards alternative sensitive devices and materials. In this review, we describe the most recent optical, electrochemical, and transistor-based sensors to provide an overview on the status of the scientific efforts towards pH sensing.
Topics & Concepts
NanotechnologyMaterials scienceField (mathematics)OptoelectronicsCalibrationFragilityTransistorField-effect transistorEngineering physicsComputer scienceElectrical engineeringPhysicsEngineeringVoltageThermodynamicsPure mathematicsQuantum mechanicsMathematicsAnalytical Chemistry and SensorsElectrochemical sensors and biosensorsConducting polymers and applications