As one of conducting polymers, PEDOT:PSS, is commonly used in organic electronics, especially for bioelectronics due to its advantages such as high electrical and ionic conductivity, solution-processability and biocompatibility. Creating bioelectronics with the PEDOT:PSS requires advanced techniques to obtain physical/chemical modification of the PEDOT:PSS for improved performance and various applications. To satisfy these demands, fibrillary gelation of PEDOT:PSS by injection to choline acetate, an ionic liquid, with a constant flow rate was used in this study to make a conductive fiber and improve characteristics of PEDOT:PSS. Conductive fibers by fibrillary gelation showed enhanced electrical conductivity of about 400 S cm⁻¹ and volumetric capacitance of about 154 F cm⁻³ which would be strongly beneficial to be utilized for organic electrochemical transistors (OECTs), resulting in a high transconductance of 19 mS in a depletion-mode. Moreover, dedoping of the conductive fibers by PEI (polyethyleneimine) enabled the creation of enhancement-mode OECTs. Interdigitated inverters were then fabricated by connecting depletion and enhancement-mode OECTs. These results demonstrate that these conductive fibers and electronic-textiles are suitable candidates for applications in bio-integrated electronics.

作为导电聚合物之一，PEDOT:PSS因其高电导率和离子电导率、溶液加工性和生物相容性等优点而常用于有机电子学，尤其是生物电子学。使用 PEDOT:PSS 创建生物电子学需要先进的技术来获得 PEDOT:PSS 的物理/化学修饰，以提高性能和各种应用。为了满足这些需求，本研究使用恒定流速的离子液体醋酸胆碱注射液使 PEDOT:PSS 纤维凝胶化，以制备导电纤维并改善 PEDOT:PSS 的特性。^{通过原纤维凝胶化的导电纤维显示出约400 S cm -1}的增强电导率和约154 F cm ^{-3的体积电容}这将非常有利于用于有机电化学晶体管（OECT），从而在耗尽模式下产生19 mS的高跨导。此外，通过 PEI（聚乙烯亚胺）对导电纤维进行去掺杂，可以创建增强型 OECT。然后通过连接耗尽型和增强型 OECT 来制造叉指型逆变器。这些结果表明，这些导电纤维和电子纺织品是生物集成电子产品应用的合适候选者。