@article{Gan_Shuai_Wang_Huang_Ren_Fang_Wang_Xie_Lu_2020, title={Mussel‑Inspired Redox‑Active and Hydrophilic Conductive Polymer Nanoparticles for Adhesive Hydrogel Bioelectronics}, volume={12}, url={https://www.nmlett.org/index.php/nml/article/view/18}, DOI={10.1007/s40820-020-00507-0}, abstractNote={<p>Conductive polymers (CPs) are generally insoluble, and developing hydrophilic CPs is significant to broaden the applications of CPs. In this work, a mussel-inspired strategy was proposed to construct hydrophilic CP nanoparticles (CP NPs), while endowing the CP NPs with redox activity and biocompatibility. This is a universal strategy applicable for a series of CPs, including polyaniline, polypyrrole, and poly(3,4-ethylenedioxythiophene). The catechol/quinone contained sulfonated lignin (LS) was doped into various CPs to form CP/LS NPs with hydrophilicity, conductivity, and redox activity. These CP/LS NPs were used as versatile nanofillers to prepare the conductive hydrogels with long-term adhesiveness. The CP/LS NPs-incorporated hydrogels have a good conductivity because of the uniform distribution of the hydrophilic NPs in the hydrogel network, forming a well-connected electric path. The hydrogel exhibits long-term adhesiveness, which is attributed to the mussel-inspired dynamic redox balance of catechol/quinone groups on the CP/LS NPs. This conductive and adhesive hydrogel shows good electroactivity and biocompatibility and therefore has broad applications in electrostimulation of tissue regeneration and implantable bioelectronics.</p> <p>Highlights:</p> <p>1 A universal strategy was proposed to producing conductive, redox-active, and hydrophilic sulfonated lignin-conductive polymer nanoparticles (CP/LS NPs).<br>2 By incorporating the CP/LS NPs into hydrogel network, a good conductive, adhesive, and tough hydrogel was obtained.<br>3 The redox-active NPs maintained enough catechol groups inner the hydrogel for adhesiveness.</p>}, journal={Nano-Micro Letters}, author={Gan, Donglin and Shuai, Tao and Wang, Xiao and Huang, Ziqiang and Ren, Fuzeng and Fang, Liming and Wang, Kefeng and Xie, Chaoming and Lu, Xiong}, year={2020}, month={Aug.}, pages={169} }