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This paper describes a small sized balloon pump for providing liquid in low flow rate without a driving source. The balloon pump is composed of a balloon tank and a microfluidic valve. The balloon tank can work as a reservoir to store liquid and an actuator to pump liquid. By connecting the microfluidic valve to the balloon tank, we achieved extremely low flow rates of the liquid. Therefore, our balloon...
We propose a pneumatic balloon actuator capable of controlling its bending points. Local stiffness of the balloon actuator can be controlled by embedding low-melting-point-alloy that becomes solid by cooling. The bending points can be changed depending on the position of the melted low-melting-point-alloy since the pneumatic actuator bends at soft point. The advantage of our actuator is that its bending...
We report the multiphoton fabrication of hybrid microstructures of photoresist and chemically responsive protein hydrogel for microactuation, such as a lever and a rotary stepper. By two-step direct laser writing (DLW) technology, we combine chemically responsive protein hydrogel with mechanical robust photoresist into pH-responsive hybrid actuators that contain only biocompatible materials. The fabrication...
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