TY - GEN
T1 - Locally Bendable Stimuli-Responsive Hydrogel Actuator with Axially Patterned Functional Materials
AU - Takeuchi, Nobuki
AU - Nakajima, Shunsuke
AU - Kawano, Ryuji
AU - Hori, Yutaka
AU - Onoe, Hiroaki
N1 - Funding Information:
This work was partly supported by Grant-in Aid for Scientific Research (A) (18H03868) from Japan Society for the Promotion of Science (JSPS), Japan.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/1
Y1 - 2020/1
N2 - This paper describes a locally bendable stimuli-responsive hydrogel actuator with axially patterned functional materials fabricated by a valve-controlled microfluidic device. By application of an external stimuli to the complete actuator, it can be locally bended owing to the axial pattern of the responsive and non-responsive material. These materials are axially patterned on a microfiber through the Y-shaped channel coupled with the open/close motion of the valves in the microfluidic device. The microfluidic device can regulate the on/off of the flow by thin membrane pneumatic valves controlled by a computer. The patterning frequency of the two materials in the microfiber could be adjusted by modifying the switching intervals of the solutions. Also, we successfully demonstrated the curvature-change through heating and cooling. We believe that this locally bendable stimuli-responsive hydrogel could contribute to microfiber-shaped soft actuators, biomedical sensors, and self-assembly of complex 3D microstructures.
AB - This paper describes a locally bendable stimuli-responsive hydrogel actuator with axially patterned functional materials fabricated by a valve-controlled microfluidic device. By application of an external stimuli to the complete actuator, it can be locally bended owing to the axial pattern of the responsive and non-responsive material. These materials are axially patterned on a microfiber through the Y-shaped channel coupled with the open/close motion of the valves in the microfluidic device. The microfluidic device can regulate the on/off of the flow by thin membrane pneumatic valves controlled by a computer. The patterning frequency of the two materials in the microfiber could be adjusted by modifying the switching intervals of the solutions. Also, we successfully demonstrated the curvature-change through heating and cooling. We believe that this locally bendable stimuli-responsive hydrogel could contribute to microfiber-shaped soft actuators, biomedical sensors, and self-assembly of complex 3D microstructures.
KW - Actuator
KW - Microfiber
KW - Stimuli-responsive hydrogel
KW - Valve-controlled microfluidic device
UR - http://www.scopus.com/inward/record.url?scp=85083170687&partnerID=8YFLogxK
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U2 - 10.1109/MEMS46641.2020.9056321
DO - 10.1109/MEMS46641.2020.9056321
M3 - Conference contribution
AN - SCOPUS:85083170687
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 243
EP - 244
BT - 33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
Y2 - 18 January 2020 through 22 January 2020
ER -