Recent advances in wearable and implantable biomedical devices have inspired the pursuit of seamless human-machine integration through bioelectronic interfaces (1). Such biocompatible interfaces would allow the recording and processing of signals, such as brain and heart activities, in real time. Although modern electronics rely on complementary metal-oxide-semiconductor architectures to construct transistors and logic circuits, their inherent rigidity is not compatible with long-term bioelectronic applications. Hydrogels offer a solution, with their tissue-like softness, high water content, and tunable electrical and mechanical properties (2). However, the development of semiconducting hydrogels is a challenge because of the limited performance of existing n-type semiconducting materials, which transport electrons as the dominant charge carriers (3, 4). On page 557 of this issue, Li et al. (5) report the synthesis of an electron-transporting polymer from which n-type semiconducting hydrogels can be derived for use as biologically interfaced transistors.

中文翻译：

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导电水凝胶让电子带电

可穿戴和植入式生物医学设备的最新进展激发了人们对通过生物电子接口实现无缝人机集成的追求 ( 1 )。这种生物相容性接口将允许实时记录和处理信号，例如大脑和心脏活动。尽管现代电子产品依靠互补金属氧化物半导体架构来构建晶体管和逻辑电路，但其固有的刚性与长期生物电子应用不兼容。水凝胶提供了一种解决方案，具有组织般的柔软度、高含水量以及可调节的电气和机械性能 ( 2 )。然而，由于现有 n 型半导体材料（其传输电子作为主要电荷载流子）的性能有限，半导体水凝胶的开发是一个挑战 ( 3 , 4 )。在本期第 557 页，Li等人。 ( 5 ) 报道了一种电子传输聚合物的合成，从中可以衍生出 n 型半导体水凝胶，用作生物接口晶体管。