Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
Nano Lett. 2022 Sep 28;22(18):7597-7605. doi: 10.1021/acs.nanolett.2c02647. Epub 2022 Sep 9.
Stretchable electronics have attracted surging attention for next-generation smart wearables, yet traditional flexible devices fabricated on hermetical elastic substrates cannot satisfy lengthy wearing comfort and signal stability due to their poor moisture and air permeability. Herein, perspiration-wicking and luminescent on-skin electrodes are fabricated on superelastic nonwoven textiles with a Janus configuration. Through the electrospin-assisted face-to-face assembly of all-SEBS microfibers with differentiated diameters and composition, porosity and wettability asymmetry are constructed across the textile, endowing it with antigravity water transport capability for continuous sweat release. Also, the phosphor particles evenly encapsulated in the elastic fibers empower the Janus textile with stable light-emitting capability under extreme stretching in a dark environment. Additionally, the precise printing of highly conductive liquid metal (LM) circuits onto the matrix not only equips the electronic textile with broad detectability for various biophysical and electrophysiological signals but also enables successful implementation of human-machine interface (HMIs) to control a mechanical claw.
自贴合电子产品问世以来，其在下一代智能可穿戴设备领域受到了广泛关注。然而，传统的弹性基底柔性器件由于其较差的透气性和透湿性，无法满足长时间穿着的舒适性和信号稳定性需求。在此，通过静电纺丝辅助的具有不同直径和组成的全 SEBS 微纤维面对面组装，在纺织物表面构建了不对称的多孔和润湿性，赋予其具有抗重力的输水能力，可实现持续排汗。此外，磷光体颗粒均匀地包裹在弹性纤维中，使 Janus 纺织品在黑暗环境中具有稳定的发光能力，即使在极端拉伸下也能保持稳定。此外，将高导电性的液态金属 (LM) 电路精确地打印到基质上，不仅为电子纺织品提供了对各种生物物理和电生理信号的广泛检测能力，而且还实现了人机接口 (HMI) 来控制机械爪。
