Electrolyte-gated transistors (EGTs) are three-electrodes devices, two of which covered by a semiconductor channel and the third, called gate, in contact with the channel by an electrolyte, that acts as a dielectric. The interplay between the gate/electrolyte and the electrolyte/channel interfaces, tuned by the voltages applied in the channel and on the gate, induces an amplification of any chemical modification on the gate or channel surface. Due to this architecture, depending on the material of choice, the EGTs can be used to create label-free sensors based on both non faradaic and faradaic processes, where the recognition event takes place on the gate electrode or on the channel itself. EGTs bio and chemo-sensing based on organic semiconductors, graphene and reduced graphene oxide shows outstanding performances in terms of sensitivity, selectivity, and limit of detection, and can be fabricated on flexible substrates at low cost and interfaced with complex samples.
Interfacing EGTs with complex samples is vital for healthcare applications, industrial product monitoring and environmental analysis. However, this is challenging due to phenomena such as non-specific absorption of macromolecules or unwanted faradaic reactions caused by the interplay between the sample components and the applied voltages. To overcome these limitations, innovations in this fields are required in terms of recognition moiety, device architecture and platform integration. Furthermore, the increasing number of EGT chemo- and bio-sensors in literature showing outstanding performances emphasises the need for a deeper understanding of their response process from a physical chemistry perspective along with novel data analysis methods.
The scope of the current Research Topic is to cover recent innovations in terms of recognition process, response analysis, platform implementation and novel architectures of EGT chemo- and bio-sensors. Areas to be covered in this Research Topic may include, but are not limited to:
- Development of novel EGT chemo- and bio-sensors architectures and platforms
- EGTs chemo- and bio-sensors based on new semiconductors
- New application fields and targets
- Novel chemo- and bio-sensors response analysis
- Theoretical and physico-chemical description of EGTs chemo- and bio-sensors recognition process.
Original research articles, reviews, mini reviews and perspectives are welcome.
Keywords:
Biosensors, Chemosensors, EGT, rGO, Organic Electronics
Important Note:
All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.
Electrolyte-gated transistors (EGTs) are three-electrodes devices, two of which covered by a semiconductor channel and the third, called gate, in contact with the channel by an electrolyte, that acts as a dielectric. The interplay between the gate/electrolyte and the electrolyte/channel interfaces, tuned by the voltages applied in the channel and on the gate, induces an amplification of any chemical modification on the gate or channel surface. Due to this architecture, depending on the material of choice, the EGTs can be used to create label-free sensors based on both non faradaic and faradaic processes, where the recognition event takes place on the gate electrode or on the channel itself. EGTs bio and chemo-sensing based on organic semiconductors, graphene and reduced graphene oxide shows outstanding performances in terms of sensitivity, selectivity, and limit of detection, and can be fabricated on flexible substrates at low cost and interfaced with complex samples.
Interfacing EGTs with complex samples is vital for healthcare applications, industrial product monitoring and environmental analysis. However, this is challenging due to phenomena such as non-specific absorption of macromolecules or unwanted faradaic reactions caused by the interplay between the sample components and the applied voltages. To overcome these limitations, innovations in this fields are required in terms of recognition moiety, device architecture and platform integration. Furthermore, the increasing number of EGT chemo- and bio-sensors in literature showing outstanding performances emphasises the need for a deeper understanding of their response process from a physical chemistry perspective along with novel data analysis methods.
The scope of the current Research Topic is to cover recent innovations in terms of recognition process, response analysis, platform implementation and novel architectures of EGT chemo- and bio-sensors. Areas to be covered in this Research Topic may include, but are not limited to:
- Development of novel EGT chemo- and bio-sensors architectures and platforms
- EGTs chemo- and bio-sensors based on new semiconductors
- New application fields and targets
- Novel chemo- and bio-sensors response analysis
- Theoretical and physico-chemical description of EGTs chemo- and bio-sensors recognition process.
Original research articles, reviews, mini reviews and perspectives are welcome.
Keywords:
Biosensors, Chemosensors, EGT, rGO, Organic Electronics
Important Note:
All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.