Sol-gel conversion actuator

0301222-197

[DEFINITION]
An actuator that uses the transition between the sol (liquid) state and the gel (solid) state.

[DESCRIPTION]
A sol-gel conversion actuator can work in a similar way to living things. For example, if electrodes are put on small particle of sodium polyacrylate gel in electrolytic solution and a voltage is applied, the particle repeatedly changes its shape. They can be connected in series, sealed in a thin pipe and given with multiple legs, to make a microrobot that moves in one direction that looks like a centipede. Another application being conceived is a crawler microrobot that automatically moves through a thin pipe.

[References]
(5)(6)(15)

[Related Terms]
Actuator