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Keywords:

  • bioelectronic devices;
  • DNA;
  • electrochemistry;
  • molecular locks;
  • molecular devices
Thumbnail image of graphical abstract

Try your lock: A resettable DNA-based keypad lock system with electrochemical current as output signal has been successfully developed as proof of concept (see scheme). The system is triggered to ON only when the inputs are adopted with an appropriate combination and exact sequence. The reset function can be facilely realized.