A nanofluidic sensing platform based on robust and flexible graphene oxide/chitosan nanochannel membranes for glucose and urea detection

Abstract

We present the development of a health-monitoring nanofluidic membrane utilizing biocompatible and biodegradable graphene oxide, chitosan, and graphene quantum dots. The nanoconfinement provided by graphene oxide nanolayers encapsulates chitosan molecules,...

“Clickable” graphene nanoribbons for biosensor interfaces

“…Recently, the potential of utilizing the PL property, integrated in the sensor interface, has been demonstrated by using graphene quantum dots embedded in a nanofluidic membrane for a rapid and reliable optical readout of pH changes, associated with human health monitoring. 62 In our work, the PL signal of the GNRs opens up the possibility for direct and simultaneous optical and electronic probing of the biointerface immobilized on the transistor channel, offering a compelling alternative to previously established, multivariable sensor configurations based on FET and surface plasmon resonance. 63,64 As a next step, an integration of both sensing principles into one FET measurement cell is foreseen, to better investigate and understand the obtained signals, and to demonstrate the simultaneous, optical-electronic analyte detection.…”

Bioinspired 2D nanofluidic membranes for energy applications

“…Second, the pressure and photoelectric conversion performance of 2D nanofluidic membranes is still unsatisfactory due to the slow response rate. It is necessary to thoroughly investigate the stimulus-response mechanism of 2D membranes [261][262][263][264] and construct fast response/recovery pathways to improve the energy conversion efficiency.…”