Carbon Nanotube Yarn-Based Glucose Sensing Artificial Muscle
2016-10-24 18:27:32 조회수760
Junghan Lee , Sachan Ko , Cheong Hoon Kwon , Márcio D. Lima , Ray H. Baughman , and Seon Jeong Kim * - Dr. J. Lee, S. Ko, Dr. C. H. Kwon, Prof. S. J. Kim Center for Self-Powered Actuation Department of Biomedical Engineering Hanyang University 222 Wangsimni-ro, Seongdong-gu Seoul 04763 , South Korea, E-mail: - Dr. M. D. Lima, Prof. R. H. Baughman The Alan G. MacDiarmid NanoTech Institute University of Texas at Dallas 800 West Campbell Road , Richardson , TX 75080 , USA 원문 링크 :


Boronic acid (BA), known to be a reversible glucose-sensing material, is conjugated to a nanogel (NG) derived from hyaluronic acid biopolymer and used as a guest material for a carbon multiwalled nanotube (MWNT) yarn. By exploiting the swelling/deswelling of the NG that originates from the internal anionic charge changes resulting from BA binding to glucose, a NG MWNT yarn artifi cial muscle is obtained that provides reversible torsional actuation that can be used for glucose sensing. This actuator shows a short response time and high sensitivity (in the 5–100 × 10 −3 M range) for monitoring changes in glucose concentration in physiological buffer, without using any additional auxiliary substances or an electrical power source. It may be possible to apply the glucose-sensing MWNT yarn muscles as implantable glucose sensors that automatically release drugs when needed or as an artifi cial pancreas. 

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