期刊
ADVANCED FUNCTIONAL MATERIALS
卷 31, 期 20, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202010048
关键词
bioelectronics; biosensors; conjugated polymers; organic electronics; structure– property relationship
类别
资金
- Deutsche Forschungsgemeinschaft [TH807/7-1]
- Bavarian Ministry of State for Science and Arts (Solar Technologies Go Hybrid, SolTech)
- Projekt DEAL
The study demonstrates that PDPPs with high ethylene glycol content are crucial for the design of efficient mixed ion-electron conductors. These polymers exhibit high volumetric capacitance, high hole mobility, and outstanding cell compatibility in OECTs, making them promising for applications in in vitro and in vivo bioelectronics.
A comprehensive investigation of four polydiketopyrrolopyrroles (PDPPs) with increasing ethylene glycol (EG) content and varying nature of comonomer is presented, and guidelines for the design of efficient mixed ion-electron conductors (MIECs) are deduced. The studies in NaCl electrolyte-gated organic electrochemical transistors (OECTs) reveal that a high amount of EG on the DPP moiety is essential for MIEC. The PDPP containing 52 wt% EG exhibits a high volumetric capacitance of 338 F cm(-3) (at 0.8 V), a high hole mobility in aqueous medium (0.13 cm(2) V-1 s(-1)), and a mu C* product of 45 F cm(-1) V-1 s(-1). OECTs using this polymer retain 97% of the initial drain-current after 1200 cycles (90 min of continuous operation). In a cell growth medium, the OECT-performance is fully maintained as in the NaCl electrolyte. In vitro cytotoxicity and cell viability assays reveal the excellent cell compatibility of these novel systems, showing no toxicity after 24 h of culture. Due to the excellent OECT performance with a considerable cycling stability for 1200 cycles and an outstanding cell compatibility, these PDPPs render themselves viable for in vitro and in vivo bioelectronics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据