Using a graphene field-effect transistor biosensor, we monitored the pH inside a living biofilm
with fast temporal resolution (~ 1 s) over multi-hour time periods. The atomically-thin sensor is
positioned between the biofilm and a supporting silicon oxide surface, providing non-invasive
access to conditions at the base of the biofilm....
Full Text:
., Semprini, L., & Minot, E. D. (2015). Graphene
Biotransistor Interfaced with a Nitrifying Biofilm
Using a graphene field-effect transistor biosensor, we monitored the pH inside a living biofilm
with fast temporal resolution (~ 1 s) over multi-hour time periods. The atomically-thin sensor is
positioned between the biofilm and a supporting silicon oxide surface, providing non-invasive
access to conditions at the base of the biofilm....
Full Text:
Interfaced with a Nitrifying Biofilm”
Morgan Brown1, Leila Barker2, Lewis Semprini2 and Ethan D. Minot1
Using a graphene field-effect transistor biosensor, we monitored the pH inside a living biofilm with fast temporal resolution (~ 1 s) over multi-hour time periods. The atomically-thin sensor is positioned between the biofilm and a supporting silicon oxide surface, providing non-invasive access to conditions at the base of the biofilm....
Atomically-thin graphene sheets have unprecedented characteristics for biosensing applications. These characteristics include mechanical flexibility and strength, optical transparency, electrical sensitivity and biocompatibility. The primary theme of this dissertation is the characterization and application of graphene field-effect transistors (FETs) in biologically-relevant physiological environments.Understanding the interface that forms between an electrolyte and...