An Artificial CO2‐Driven Ionic Gate Inspired by Olfactory Sensory Neurons in Mosquitoes

A novel CO2 -driven ionic gate, mimicking the function of olfactory sensory neurons of mosquitoes, is successfully developed by functionalizing the walls of the nanochannels using 1-(4-amino-phenyl)-2,2,2-trifluoro-ethanone. This artificial nanochannel can switch between the ON-state and OFF-state in the presence and absence of CO2 , with an ultrahigh gating ratio of up to 1250, and has potential applications in CO2 -related sensing, gating, and nanofluidic systems.

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