Department of Chemical and Biomolecular Engineering
Korea Advanced Institute of Science and Technology

Recent Achievements

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[Frontispiece] An Ultrastable Ionic Chemiresistor Skin with an Intrinsically Stretchable Polymer Electrolyte

Title: An Ultrastable Ionic Chemiresistor Skin with an Intrinsically Stretchable Polymer Electrolyte
Author: Ming Liang Jin, Sangsik Park, Jong-Seon Kim, Sung Hyun Kwon, Shuye Zhang, Min Seok Yoo, Sungwoo Jang, Hyeong-Jun Koh, Soo-Yeon Cho, So Young Kim, Chi Won Ahn, Kilwon Cho, Seung Geol Lee, Do Hwan Kim,* and Hee-Tae Jung*
Journal: Advanced Materials, 2018, Vol.30, 1706851
Abstract: Ultrastable sensing characteristics of the ionic chemiresistor skin (ICS) that is designed by using an intrinsically stretchable thermoplastic polyurethane electrolyte as a volatile organic compound (VOC) sensing channel are described. The hierarchically assembled polymer electrolyte film is observed to be very uniform, transparent, and intrinsically stretchable. Systematic experimental and theoretical studies also reveal that artificial ions are evenly distributed in polyurethane matrix without microscale phase separation, which is essential for implementing high reliability of the ICS devices. The ICS displays highly sensitive and stable sensing of representative VOCs (including toluene, hexane, propanal, ethanol, and acetone) that are found in the exhaled breath of lung cancer patients. In particular, the sensor is found to be fully operational even after being subjected to long‐term storage or harsh environmental conditions (relative humidity of 85% or temperature of 100 °C) or severe mechanical deformation (bending to a radius of curvature of 1 mm, or stretching strain of 100%), which can be an effective method to realize a human‐adaptive and skin‐attachable biosensor platform for daily use and early diagnosis.


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등록일2018-05-18

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Title: Self-Organization of Polymer Additive, Poly(2-vinylpyridine) via One-Step Solution Processing to Enhance the Efficiency and Stability of Polymer Solar Cells Author: Wonho Lee, Seonju Jeong, Changyeon Lee, Gibok Han, Changsoon Cho, Jung-Yong Lee, Bumjoon J. Kim*    Journal: Advanced Energy Materials, 2017, Vol.7, 1602812 Abstract: &...
Title: A hydrocarbon/Nafion bilayer membrane with a mechanical nano-fastener for vanadium redox flow batteries   Author: Soohyun Kim, Seongmin Yuk, Hyungyu Kim, Chanyong Choi, Riyul Kim, Jang Young Lee, Young Taik Hong and Hee-Tak Kim* Journal: Journal of Materials Chemistry A, 2017, 5, 17279-17286 Inside front cover Abstra...
Title: Stimuli-Responsive, Shape-Transforming Nanostructured Particles Author: Junhyuk Lee, Kang Hee Ku, Mingoo Kim, Jae Man Shin, Junghun Han, Chan Ho Park, Gi-Ra Yi, Se Gyu Jang, Bumjoon J. Kim*   Journal: Advanced Materials, 2017, Vol.29, 1700608 Abstract Dynamic, temperature-driven transformation of the shap...
Title:  [Frontispiece] Structural Color Palettes of Core-Shell Photonic InkCapsules containing Cholesteric Liquid CrystalsAuthor: Sang Seok Lee, HyeonJin Seo, Yun Ho Kim,* and Shin-Hyun Kim*Journal: AdvancedMaterials, 2017, Vol.29, 1606894AbstractPhotonicmicrocapsules with onion-like topology are microfluidically designed to have cholesteric liquid crystals with oppositehandedness in th...
Title:  [Front cover] Selective Coloration of Melanin Nanospheres throughResonant Mie ScatteringAuthor: Soojeong Cho, Tae SoupShim, Ju Hyeon Kim, Dong-Hyun Kim, and Shin-Hyun Kim*Journal: Advanced Materials,2017, Vol.29, 1700256AbstractBlack melanin inks are preparedto selectively exhibit colors under strong light, inspired by human hair. Highabsorbance of melanin suppresses multiple sca...