Wang Yan, Lee Sunghoon, Yokota Tomoyuki, Wang Haoyang, Jiang Zhi, Wang Jiabin, Koizumi Mari, Someya Takao
Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
Sci Adv. 2020 Aug 12;6(33):eabb7043. doi: 10.1126/sciadv.abb7043. eCollection 2020 Aug.
Ultraconformable strain gauge can be applied directly to human skin for continuous motion activity monitoring, which has seen widespread application in interactive robotics, human motion detection, personal health monitoring, and therapeutics. However, the development of an on-skin strain gauge that can detect human body motions over a long period of time without disturbing the natural skin movements remains a challenge. Here, we present an ultrathin and durable nanomesh strain gauge for continuous motion activity monitoring that minimizes mechanical constraints on natural skin motions. The device is made from reinforced polyurethane-polydimethylsiloxane (PU-PDMS) nanomeshes and exhibits excellent sustainability, linearity, and durability with low hysteresis. Its thinness geometry and softness provide minimum mechanical interference on natural skin deformations. During speech, the nanomesh-attached face exhibits skin strain mapping comparable to that of a face without nanomeshes. We demonstrate long-term facial stain mapping during speech and the capability for real-time stable full-range body movement detection.
超贴合应变片可直接应用于人体皮肤，用于连续运动活动监测，已在交互式机器人技术、人体运动检测、个人健康监测和治疗等领域得到广泛应用。然而，开发一种能够长时间检测人体运动而不干扰皮肤自然运动的皮肤应变片仍然是一个挑战。在此，我们展示了一种用于连续运动活动监测的超薄且耐用的纳米网应变片，它能将对皮肤自然运动的机械约束降至最低。该器件由增强型聚氨酯 - 聚二甲基硅氧烷（PU - PDMS）纳米网制成，具有出色的可持续性、线性度和耐用性，滞后性低。其薄型几何结构和柔软性对皮肤自然变形提供了最小的机械干扰。在说话过程中，附着纳米网的面部呈现出与未附着纳米网的面部相当的皮肤应变映射。我们展示了说话过程中的长期面部应变映射以及实时稳定的全范围身体运动检测能力。
