Fig. 3: JO-robot for daughter droplets dispensing and release.

a Controllable daughter droplet dispensing. b On-demand daughter droplet release. c Schematic diagram of JO-robot interaction with droplet during daughter droplet dispensing and release. The JO-robot is regarded as the three plates connected by creases. When interaction with droplet, the crease is bent (with the thickness of h, the arc length of s and the curvature of k) and the plate is bent and twisted. d, e The simulations of the droplet morphology during dispensing and release, respectively. f The ability of JO-robots with different sizes to dispense and release daughter droplets. g On-demand generation of microdroplets array. Microdroplets array generation is achieved through continuous daughter droplets dispensing and releasing. All scale bars are 2 mm. The error bars represent the standard deviation of five independent measurements. Source data are provided as a Source Data file.