Potential of Thermo-Sensitive Hydrogel as an Actuator
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概要
- 論文の詳細を見る
To use poly-N-Isopropylacrylamide (PNIPAAm) as an actuator, we investigated its general characteristics such as swelling/deswelling ratio, response time and swelling force. Through out the variation, a change in volume of over 600% of PNIPAAm and a force generation of gram force order was obtained. Furthermore, we measured the significant change of friction caused by phase transition phenomena that is hydrophobic and hydrophilic. Surface condition that influences friction force can be reversed from swelling phase to deswelling phase by controlling the temperature of PNIPAAm. To verify the potential application of PNIPAAm using this characteristic, we compared its friction force under glass and small-intestine tissue of a pig. It was found that the level of friction differs significantly depending on phase change of PNIPAAm. Based on this knowledge, we could conclude that PNIPAAm can be applied to the stopping mechanism of in-body locomotion in order to replace the clamping mechanism of in body robot for locomotion on the gastrointestinal tract.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-07-15
著者
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Chun Kukjin
School Of Electrical Engineering And Computer Science #038 And Inter-university Semiconductor Resear
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Kim Byungkyu
Microsystem Research Center Korea Institute Of Science And Technology
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Kim Hyeon
School Of Computer And Software Eng. Kumoh National University Of Technology
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Kim Jinseok
School Of Electrical Engineering Eng-038 Seoul National University
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Jeong Yongwon
School Of Electrical Engineering Eng-038 Seoul National University
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Ryu Jaewook
Microsystem Research Center Korea Institute Of Science And Technology
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Park Jungyul
Microsystem Research Center Korea Institute Of Science And Technology
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Park Jungyul
Microsystem Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
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Kim Hyeon
School of Electrical Engineering, ENG-038, Seoul National University, Seoul 151-742, Korea
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Chun Kukjin
School of Electrical Engineering, ENG-038, Seoul National University, Seoul 151-742, Korea
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Kim Byungkyu
Microsystem Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
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Kim Jinseok
School of Electrical Engineering, ENG-038, Seoul National University, Seoul 151-742, Korea
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