TCDB is operated by the Saier Lab Bioinformatics Group

1.D.177.  The Nanostructured Graphene Oxide Membrane (GOM) Family  Du et al. 2021 observed an ion transport phenomenon in nanostructured graphene oxide membranes (GOM) under asymmetric illumination. They first build a light-induced carriers' diffusion model based on previous experimental results. This model can reveal the light-induced ion transport mechanism and predict the carriers' diffusion behavior under different operational situations and material characters. The voltage difference increases with the rise of illuminate asymmetry, photoresponsivity, recombination coefficient, and carriers' diffusion coefficient ratio. The ion transport behavior was discussed with different surface charge densities using MD simulation. Moderate surface charge decreases the ion transport with the same type of charge due to electrostatic repulsion; however, excess surface charge blocks both cation and anion because a thicker electrical double layer decreases effective channel height. Research provides referenced operational and material conditions to obtain a greater voltage difference between the membrane sides. Also, the mechanism of ion transport and ion sieving can guide one to modify membrane material according to different aims (Du et al. 2021).

References associated with 1.D.277 family:

Du, L., X. Hu, D. Lu, and Z. Liu. (2021). Ionic Transport Triggered by Asymmetric Illumination on 2D Nano-Membrane. Molecules 26:. 34885657