Microfluidic opportunities in printed electrolyte-gated transistor biosensors
Kevin D. Dorfman, Demetra Z. Adrahtas, M. Thomas, C. Daniel Frisbie
Abstract
Printed electrolyte-gated transistors (EGTs) are an emerging biosensor platform that leverage the facile fabrication engendered by printed electronics with the low voltage operation enabled by ion gel dielectrics. The resulting label-free, nonoptical sensors have high gain and provide sensing operations that can be challenging for conventional chemical field effect transistor architectures. After providing an overview of EGT device fabrication and operation, we highlight opportunities for microfluidic enhancement of EGT sensor performance via multiplexing, sample preconcentration, and improved transport to the sensor surface.
Topics & Concepts
BiosensorMicrofluidicsFabricationTransistorNanotechnologyMaterials sciencePrinted electronicsMultiplexingElectronicsLeverage (statistics)ElectrolyteField-effect transistorFlexible electronicsOptoelectronicsComputer scienceVoltageElectrodeElectrical engineeringChemistryEngineeringTelecommunicationsPhysical chemistryAlternative medicinePathologyMachine learningMedicineAnalytical Chemistry and SensorsElectrochemical Analysis and ApplicationsMicrofluidic and Capillary Electrophoresis Applications