Graphene sensor detects stress hormone cortisol in saliva within minutes
The device is an electrolyte-gated graphene field-effect transistor (EG-GFET) built on CVD-grown graphene.
Useful takeaways from this story.
The device is an electrolyte-gated graphene field-effect transistor (EG-GFET) built on CVD-grown graphene.
Antibody fragments (Fab) targeting cortisol are then covalently attached to the PBI layer, giving the sensor a label-free way to detect the hormone: when cortisol binds to the immobilized Fab fragments, it...
Building the complete brief
The page is ready to read now. The fuller skim-friendly version will appear here automatically.
The useful part
The device is an electrolyte-gated graphene field-effect transistor (EG-GFET) built on CVD-grown graphene. Antibody fragments (Fab) targeting cortisol are then covalently attached to the PBI layer, giving the sensor a label-free way to detect the hormone: when cortisol binds to the immobilized Fab fragments, it shifts the transistor's Dirac point, producing a direct electrical readout.
Details worth keeping
Antibody fragments (Fab) targeting cortisol are then covalently attached to the PBI layer, giving the sensor a label-free way to detect the hormone: when cortisol binds to the immobilized Fab fragments, it shifts the transistor's Dirac point, producing a direct electrical readout.
Keep reading in the app
Open the app view to save this story, compare related coverage, and continue from the same source.