New Film Jumps and Walks, Using the Power of Humidity (VIDEO)
Caption
First clip (0:00-0:05) Jumping of a film actuator under light irradiation recorded by a high-speed camera. The film actuator bends into the upper side under light irradiation. The film was placed on a substrate in such a way that its upper side was oriented downward. When it was irradiated with light, a high-speed camera captured its jumping motion.
Second clip (0:06-) Unidirectional walking of a partially protected CNP film in the presence of a proximal water droplet. Due to this partial protection against water adsorption, only its non-protected part responded to local humidity changes. Consequently, the actuator film walked unidirectionally.
Credit
RIKEN
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