Nature CommunicationsUltrasensitive multi-degree-of-freedom piezoionic sensor via synergistic hydrogel-ion interactionsYue FangHao OuyangYin ChengYi ZhouLiangjing ShiJing SunGhim Wei HoRanran Wang2025-12-25Full textDOI https://doi.org/10.1038/s41467-025-67613-8