Biopolymers are an ideal interface for bioelectronic devices to sense and deliver signals between living systems and electronics. Jia, Rolandi and team review natural biopolymers as proton conductors that are able to convert biological signals into electronic signals and vice-versa using H⁺ as an intermediary. The mechanisms of proton conduction in polysaccharides, peptides, proteins and melanins, and their applications in sensors and actuators are summarised. They also discuss materials challenges and future directions for natural biopolymers in devices. (DOI: 10.1002/bip.23433)

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生物聚合物是生物电子设备在生命系统和电子设备之间感知和传递信号的理想接口。Jia、Rolandi 和团队审查了作为质子导体的天然生物聚合物，它能够将生物信号转换为电子信号，反之亦然，使用 H ⁺作为中介。总结了多糖、肽、蛋白质和黑色素中的质子传导机制及其在传感器和执行器中的应用。他们还讨论了设备中天然生物聚合物的材料挑战和未来方向。（DOI：10.1002/bip.23433）