Silk fibroin-based multi-responsive soft actuator, manufacturing method and regulation and control method

A regulation and control method applied to a silk fibroin-based multi-responsive soft actuator, wherein the soft actuator comprises a silk fibroin membrane and a flexible substrate, the silk fibroin membrane is placed on the flexible substrate and tightly bonded thereto to constitute a double-layer membrane structure, and thermal expansion coefficients of the silk fibroin membrane and the flexible substrate are different, and the regulation and control method comprises:

• heating the soft actuator, causing the silk fibroin membrane and the flexible substrate to undergo different thermal deformations, making the double-layer membrane structure bend and deform towards a side where the silk fibroin membrane is located;
• and
• adjusting whether the silk fibroin membrane in the double-layer membrane after drying is soaked in a calcium chloride aqueous solution or a concentration of the calcium chloride aqueous solution in which the silk fibroin membrane is soaked during the manufacturing process, a deformation angle, an amplitude and a morphology of the multi-responsive soft actuator are regulated and controlled.