Scheme 1
From: A universal tunable nanofluidic diode via photoresponsive host–guest interactions
The universal tunable nanofluidic diode controlled via photoresponsive host–guest interactions. Under visible light irradiation, azobenzene with different functional groups bind to the β-cyclodextrins on the channel surface and dissociate from the β-cyclodextrins under ultraviolet light, which allows control of the functional groups and their locations in the nanochannel
