Pure PEDOT:PSS hydrogels
© 2019, The Author(s). 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. Wh...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Science and Business Media LLC
2021
|
| Online Access: | https://hdl.handle.net/1721.1/133542 |
| _version_ | 1811096477614735360 |
|---|---|
| author | Lu, Baoyang Yuk, Hyunwoo Lin, Shaoting Jian, Nannan Qu, Kai Xu, Jingkun Zhao, Xuanhe |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Lu, Baoyang Yuk, Hyunwoo Lin, Shaoting Jian, Nannan Qu, Kai Xu, Jingkun Zhao, Xuanhe |
| author_sort | Lu, Baoyang |
| collection | MIT |
| description | © 2019, The Author(s). 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. |
| first_indexed | 2024-09-23T16:44:18Z |
| format | Article |
| id | mit-1721.1/133542 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:44:18Z |
| publishDate | 2021 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1335422023-01-20T21:39:55Z Pure PEDOT:PSS hydrogels Lu, Baoyang Yuk, Hyunwoo Lin, Shaoting Jian, Nannan Qu, Kai Xu, Jingkun Zhao, Xuanhe Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Department of Civil and Environmental Engineering © 2019, The Author(s). 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. 2021-10-27T19:53:26Z 2021-10-27T19:53:26Z 2019 2019-07-18T14:50:30Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133542 en 10.1038/s41467-019-09003-5 Nature Communications Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | Lu, Baoyang Yuk, Hyunwoo Lin, Shaoting Jian, Nannan Qu, Kai Xu, Jingkun Zhao, Xuanhe Pure PEDOT:PSS hydrogels |
| title | Pure PEDOT:PSS hydrogels |
| title_full | Pure PEDOT:PSS hydrogels |
| title_fullStr | Pure PEDOT:PSS hydrogels |
| title_full_unstemmed | Pure PEDOT:PSS hydrogels |
| title_short | Pure PEDOT:PSS hydrogels |
| title_sort | pure pedot pss hydrogels |
| url | https://hdl.handle.net/1721.1/133542 |
| work_keys_str_mv | AT lubaoyang purepedotpsshydrogels AT yukhyunwoo purepedotpsshydrogels AT linshaoting purepedotpsshydrogels AT jiannannan purepedotpsshydrogels AT qukai purepedotpsshydrogels AT xujingkun purepedotpsshydrogels AT zhaoxuanhe purepedotpsshydrogels |