Biomedical Applications of Deformable Hydrogel Microrobots

Hydrogel, a material with outstanding biocompatibility and shape deformation ability, has recently become hot topic for researchers studying innovative functional materials due to the growth of new biomedicine. Due their stimulus responsiveness external environments, hydrogels have progressively evolved into “smart” responsive (such as pH, light, electricity, magnetism, temperature, humidity) in recent years. The physical chemical properties been used construct hydrogel micro-nano robots which demonstrated significant promise biomedical applications. different mechanisms are initially discussed this study; after which, number preparation techniques variety structural designs introduced. This study also highlights most developments robots’ biological applications, such drug delivery, stem cell treatment, cargo manipulation. On basis current state development, difficulties potential future paths identified.