Fig. 2 | Nature Communications

Fig. 2

From: Real-time magnetic actuation of DNA nanodevices via modular integration with stiff micro-levers

Fig. 2

Schematic illustrations of three DNA microsystems. a DNA Lever System, b DNA Rotor System, and c DNA Hinge System—were assembled from DNA nanostructures to actuate three DNA nano constructs—56 Helix nano-brick, nano-rotor and nano-hinge. a The nano-brick was attached to the surface via biotin-streptavidin affinity while a micro-lever arm attached to the other end. b The nano-platform in the nano-rotor was attached to the surface via biotin-streptavidin affinity, while two micro-lever arms were attached on both sides of the nano-rotor arm. c Two micro-lever arms are attached to the nano-hinge. The entire bottom arm of the hinge is fixed to the surface via biotin-streptavidin affinity, while the top micro-arm is free to fluctuate. Micromagnetic beads are attached to the free end of the micro-lever arm in each system. Rotating in-plane fields apply a torque on the bead, precessing the nano-rod and nano-rotor, and opening and closing the nano-hinge