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Pure PEDOT:PSS hydrogels

Author

Listed:
  • Baoyang Lu

    (Jiangxi Science and Technology Normal University
    Massachusetts Institute of Technology)

  • Hyunwoo Yuk

    (Massachusetts Institute of Technology)

  • Shaoting Lin

    (Massachusetts Institute of Technology)

  • Nannan Jian

    (Jiangxi Science and Technology Normal University)

  • Kai Qu

    (Jiangxi Science and Technology Normal University)

  • Jingkun Xu

    (Jiangxi Science and Technology Normal University
    Qingdao University of Science and Technology)

  • Xuanhe Zhao

    (Massachusetts Institute of Technology
    Massachusetts Institute of Technology)

Abstract

Hydrogels of conducting polymers, particularly poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), provide a promising electrical interface with biological tissues for sensing and stimulation, owing to their favorable electrical and mechanical properties. While existing methods mostly blend PEDOT:PSS with other compositions such as non-conductive polymers, the blending can compromise resultant hydrogels’ mechanical and/or electrical properties. Here, we show that designing interconnected networks of PEDOT:PSS nanofibrils via a simple method can yield high-performance pure PEDOT:PSS hydrogels. The method involves mixing volatile additive dimethyl sulfoxide (DMSO) into aqueous PEDOT:PSS solutions followed by controlled dry-annealing and rehydration. The resultant hydrogels exhibit a set of properties highly desirable for bioelectronic applications, including high electrical conductivity (~20 S cm−1 in PBS, ~40 S cm−1 in deionized water), high stretchability (> 35% strain), low Young’s modulus (~2 MPa), superior mechanical, electrical and electrochemical stability, and tunable isotropic/anisotropic swelling in wet physiological environments.

Suggested Citation

  • Baoyang Lu & Hyunwoo Yuk & Shaoting Lin & Nannan Jian & Kai Qu & Jingkun Xu & Xuanhe Zhao, 2019. "Pure PEDOT:PSS hydrogels," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09003-5
    DOI: 10.1038/s41467-019-09003-5
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    Cited by:

    1. Xinjian Xie & Zhonggang Xu & Xin Yu & Hong Jiang & Hongjiao Li & Wenqian Feng, 2023. "Liquid-in-liquid printing of 3D and mechanically tunable conductive hydrogels," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Yang Li & Nan Li & Wei Liu & Aleksander Prominski & Seounghun Kang & Yahao Dai & Youdi Liu & Huawei Hu & Shinya Wai & Shilei Dai & Zhe Cheng & Qi Su & Ping Cheng & Chen Wei & Lihua Jin & Jeffrey A. Hu, 2023. "Achieving tissue-level softness on stretchable electronics through a generalizable soft interlayer design," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Won Bae Han & Gwan-Jin Ko & Kang-Gon Lee & Donghak Kim & Joong Hoon Lee & Seung Min Yang & Dong-Je Kim & Jeong-Woong Shin & Tae-Min Jang & Sungkeun Han & Honglei Zhou & Heeseok Kang & Jun Hyeon Lim & , 2023. "Ultra-stretchable and biodegradable elastomers for soft, transient electronics," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    4. Dong-Hu Kim & Zico Alaia Akbar & Yoga Trianzar Malik & Ju-Won Jeon & Sung-Yeon Jang, 2023. "Self-healable polymer complex with a giant ionic thermoelectric effect," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    5. Xuesong Yang & Linfeng Lan & Xiuhong Pan & Qi Di & Xiaokong Liu & Liang Li & Panče Naumov & Hongyu Zhang, 2023. "Bioinspired soft robots based on organic polymer-crystal hybrid materials with response to temperature and humidity," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    6. Chaojie Yu & Mingyue Shi & Shaoshuai He & Mengmeng Yao & Hong Sun & Zhiwei Yue & Yuwei Qiu & Baijun Liu & Lei Liang & Zhongming Zhao & Fanglian Yao & Hong Zhang & Junjie Li, 2023. "Chronological adhesive cardiac patch for synchronous mechanophysiological monitoring and electrocoupling therapy," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    7. Huimin He & Hao Li & Aoyang Pu & Wenxiu Li & Kiwon Ban & Lizhi Xu, 2023. "Hybrid assembly of polymeric nanofiber network for robust and electronically conductive hydrogels," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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