▎ 摘　　要

NOVELTY - Adjusting light ion gating efficiently based on interaction between graphene lid and bionic deoxyribonucleic acid (DNA) comprises switching cis and trans states of Azobenzene (Azo)-DNA through changes in light, controlling ion gating controlled reversibly, after modification on a barrier layer of the nano-meter channel-ion channel complex, exhibiting single-stranded state under ultraviolet irradiation by Azo-DNA, binding single-stranded Azo-DNA tightly using gene ontology (GO) tightly, where the nano-meter structure system is in a closed state, after being irradiated with visible light, due to Azo's light responsiveness, Azo-DNA becomes a hairpin structure, and binding double-stranded DNA with GO stably, so it switches to the open state. USE - Method for adjusting light ion gating efficiently based on interaction between graphene lid and bionic DNA. ADVANTAGE - The method has good bio-compatibility and diversified design with potential applications in nano-medicine, biosensors and controlled drug delivery.