Soft giant magnetoimpedance electronics enable contact-free human–machine interactions - Yizhang Wu; Sicheng Xing; Dingyi Yang; Yihan Liu; Chi Ding; Zifeng Li; Qizhang Jiao; Anran Zhang; Ziheng Guo; Siyuan Liu; Wei Luo; Gongkai Yuan; et al. (Proceedings of the National Academy of Sciences, 2026)