Chemical Sensing Systems that Utilize Soft Electronics on Thin Elastomeric Substrates with Open Cellular Designs |
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| Authors: | Yoon Kyeung Lee Kyung‐In Jang Yinji Ma Ahyeon Koh Hang Chen Han Na Jung Yerim Kim Jean Won Kwak Liang Wang Yeguang Xue Yiyuan Yang Wenlong Tian Yu Jiang Yihui Zhang Xue Feng Yonggang Huang John A Rogers |
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| Affiliation: | 1. Department of Chemistry, University of Illinois at Urbana–Champaign, Urbana, IL, USA;2. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana–Champaign, Urbana, IL, USA;3. Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, South Korea;4. Department of Civil and Environmental Engineering, Mechanical Engineering, Materials Science and Engineering, Northwestern University, Evanston, IL, USA;5. Department of Engineering Mechanics, Center for Mechanics and Materials, Tsinghua University, Beijing, China;6. Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA;7. Institute of Chemical Machinery and Process Equipment, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China;8. School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, China;9. Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China;10. Center for Bio‐Integrated Electronics, Departments of Materials Science and Engineering, Biomedical Engineering, Chemistry Mechanical Engineering, Electrical Engineering and Computer Science, Neurological Surgery, Simpson Querrey Institute for BioNanotechnology, McCormick School of Engineering and Feinberg School of Medicine, Northwestern University, Evanston, IL, USA |
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| Abstract: | A collection of materials and device architectures are introduced for thin, stretchable arrays of ion sensors that mount on open cellular substrates to facilitate solution exchange for use in biointegrated electronics. The results include integration strategies and studies of fundamental characteristics in chemical sensing and mechanical response. The latter involves experimental measurements and theoretical simulations that establish important considerations in the design of low modulus, stretchable properties in cellular substrates, and in the realization of advanced capabilities in spatiotemporal mapping of chemicals' gradients. As the chemical composition of extracellular fluids contains valuable information related to biological function, the concepts introduced here have potential utility across a range of skin‐ and internal‐organ‐integrated electronics where soft mechanics, fluidic permeability, and advanced chemical sensing capabilities are key requirements. |
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| Keywords: | fluid permeable substrates ion selective electrodes porous substrates stretchable electronics |
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