Superior properties in organic mixed ionic‐electronic conductors (OMIECs) over inorganic counterparts have inspired intense interest in biosensing, soft‐robotics, neuromorphic computing, and smart medicine. However, slow ion transport relative to charge transport in these materials is a limiting factor. Here, it is demonstrated that hydrophilic molecules local to an interfacial OMIEC nanochannel can accelerate ion transport with ion mobilities surpassing electrophoretic transport by more than an order of magnitude. Furthermore, ion access to this interfacial channel can be gated through local surface energy. This mechanism is applied in a novel sensing device, which electronically detects and characterizes chemical reaction dynamics local to the buried channel. The ability to enhance ion transport at the nanoscale in OMIECs as well as govern ion transport through local chemical signaling enables new functionalities for printable, stretchable, and biocompatible mixed conduction devices.

中文翻译：

---

有机配位离子电子传输的局部化学增强和门控


有机混合离子电子导体 （OMIECs） 优于无机化合物，激发了人们对生物传感、软机器人、神经形态计算和智能医学的浓厚兴趣。然而，相对于这些材料中的电荷传输，较慢的离子传输是一个限制因素。在这里，证明界面 OMIEC 纳米通道局部的亲水分子可以加速离子传输，离子迁移率超过电泳传输一个数量级以上。此外，离子进入该界面通道可以通过局部表面能进行门控。这种机制应用于一种新型传感设备中，该设备以电子方式检测和表征埋地通道局部的化学反应动力学。在 OMIEC 中增强纳米级离子传输以及通过局部化学信号控制离子传输的能力为可打印、可拉伸和生物相容性混合导电器件提供了新功能。