Figure 1.

Design of the microrobotic system. a) Schematic illustration of puffball fungi. Numerous spores stored inside the spheroidal fruitbody are separated from the external environment by a thin barrier cap on the top. The barrier cap will open when stimulated by environmental factors such as raindrops, resulting in the immediate release of a spore cloud. b) Schematic diagram of PIMs. An internal chamber was designed to provide a large volume for drug loading, and a NIR‐responsive sealing layer was introduced to protect the drug while enabling on‐demand delivery. c) Schematic diagram for the fabrication process of the bioinspired microrobotic system: i) 3D microfabrication via two‐photon microprinting, ii) magnetic decoration via Ni/Ti sputtering, iii) centrifugation‐based loading, and iv) automated sealing. The cross‐section images of the microrobot illustrate individual features of a PIM generated in each step.