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a) Self‐sensing function of a paper actuator; insets, displacement of the actuator before and after application of 30 V. b) Sensory response of an actuator during free actuation and touching hard and soft objects; insets, photographs of the actuator when touching a hard polymer foam. c) Piezoresistive response of an actuator to on‐off light switching. Insets: photographs of the actuator before and after light irradiation for 15 s.
