Fig. 2

Fabrication of the NO-regulated nanochannel. a Process for the construction of the NO-gated nanochannel by using a spiro ring opening/closing reaction strategy; b I−V properties of the single nanochannel before and after modification in 0.1 M KCl; c LSCM observation of the fluorescent signals before and after R-110 and OPD modification. LSCM laser-scanning confocal microscopy