Transparent, Adhesive, and Conductive Hydrogel for Soft Bioelectronics Based on Light-Transmitting Polydopamine-Doped Polypyrrole Nanofibrils

Han, Lu1; Yan, Liwei1; Wang, Menghao1; Wang, Kefeng2; Fang, Liming3; Zhou, Jie1; Fang, Ju4; Ren, Fuzeng4; Lu, Xiong1

2018-08-28

10.1021/acs.chemmater.8b01446

CHEMISTRY OF MATERIALS   影响因子和分区

0897-4756

1520-5002

Conductive hydrogels are promising materials for soft electronic devices. To satisfy the diverse requirement of bioelectronic devices, especially those for human-machine interfaces, hydrogels are required to be transparent, conductive, highly stretchable, and skin-adhesive. However, fabrication of a conductive-polymer incorporated hydrogel with high performance is a challenge because of the hydrophobic nature of conductive polymers making processing difficult. Here, we report a transparent, conductive, stretchable, and self-adhesive hydrogel by in situ formation of polydopamine (PDA)-doped polypyrrole (PPy) nanofibrils in the polymer network. The in situ formed nanofibrils with good hydrophilicity were well-integrated with the hydrophilic polymer phase and interwoven into a nanomesh, which created a complete conductive path and allowed visible light to pass through for transparency. Catechol groups from the PDA-PPy nanofibrils imparted the hydrogel with self-adhesiveness. Reinforcement by the nanofibrils made the hydrogel tough and stretchable. The proposed simple and smart strategy of in situ formation of conductive nanofillers opens a new route to incorporate hydrophobic and undissolvable conductive polymers into hydrogels. The fabricated multifunctional hydrogel shows promise in a range of applications, such as transparent electronic skins, wound dressings, and bioelectrodes for see-through body-adhered signal detection.

SCI ; EI

英语

ESI高被引

其他

China Postdoctoral Science Foundation[2017M622997]

Chemistry ; Materials Science

Chemistry, Physical ; Materials Science, Multidisciplinary

WOS:000443526300008

AMER CHEMICAL SOC

20183105646507

Conductive materials ; Hydrophilicity ; Hydrophobicity ; Light ; Nanofibers ; Polymers ; Polypyrroles

Conducting Materials:708.2 ; Light/Optics:741.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Polymeric Materials:815.1 ; Organic Polymers:815.1.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933

MATERIALS SCIENCE

Web of Science

1.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Technol Mat, Chengdu 610031, Sichuan, Peoples R China
2.Sichuan Univ, Genome Res Ctr Biomat, Natl Engn Res Ctr Biomat, Chengdu 610064, Sichuan, Peoples R China
3.South China Univ Technol, Sch Mat Sci & Engn, Dept Polymer Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
4.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

Han, Lu,Yan, Liwei,Wang, Menghao,et al. Transparent, Adhesive, and Conductive Hydrogel for Soft Bioelectronics Based on Light-Transmitting Polydopamine-Doped Polypyrrole Nanofibrils[J]. CHEMISTRY OF MATERIALS,2018,30(16):5561-5572.

Han, Lu.,Yan, Liwei.,Wang, Menghao.,Wang, Kefeng.,Fang, Liming.,...&Lu, Xiong.(2018).Transparent, Adhesive, and Conductive Hydrogel for Soft Bioelectronics Based on Light-Transmitting Polydopamine-Doped Polypyrrole Nanofibrils.CHEMISTRY OF MATERIALS,30(16),5561-5572.

Han, Lu,et al."Transparent, Adhesive, and Conductive Hydrogel for Soft Bioelectronics Based on Light-Transmitting Polydopamine-Doped Polypyrrole Nanofibrils".CHEMISTRY OF MATERIALS 30.16(2018):5561-5572.