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Kirigami‐Inspired Deformable 3D Structures Conformable to Curved Biological Surface
Advanced Science ( IF 15.1 ) Pub Date : 2018-10-16 , DOI: 10.1002/advs.201801070
Chao Yang 1 , Heng Zhang 1 , Youdi Liu 1 , Zhongliang Yu 2 , Xiaoding Wei 2, 3 , Youfan Hu 1
Affiliation  

By introducing stretchability and/or deformability to planar electronics, devices can conformably attach to 3D curved surfaces with minimal invasiveness, which is of great interest for next‐generation wearables in clinical and biological applications. Here, a feasible route is demonstrated to generate deformable 3D structures as a robust platform to construct electronic systems by utilizing silver nanowires/parylene hybrid films in a way analogous to the art of kirigami. The hybrid films exhibit outstanding electrical conductivity along with decent optical transparency, flexibility, and long‐term stability. These merits enable these films to work as electrodes for electrocardiogram recording with comparable accuracy to a commercial counterpart, and to fabricate a 7‐GHz monopole antenna with good omni‐directionality and a peak gain of 1.35 dBi. More importantly, a general scheme for constructing 3D deformable electronic systems is presented, including unique patterning procedures and rational cut designs inspired by kirigami. As an example, deformable transparent humidity sensors are fabricated to work on elbows and finger joints for sweating monitoring. The strategy demonstrated here for 3D deformable system construction is versatile and holds great promise for future advanced health monitoring at diverse and complex epidermal surfaces.

中文翻译:

受剪纸启发的可变形 3D 结构符合弯曲的生物表面

通过向平面电子器件引入可拉伸性和/或可变形性,设备可以以最小的侵入性舒适地附着到 3D 曲面,这对于临床和生物应用中的下一代可穿戴设备非常有意义。在这里,展示了一种可行的途径,通过以类似于剪纸艺术的方式利用银纳米线/聚对二甲苯混合薄膜来生成可变形 3D 结构,作为构建电子系统的强大平台。该混合薄膜表现出出色的导电性以及良好的光学透明度、柔韧性和长期稳定性。这些优点使这些薄膜能够用作心电图记录的电极,其精度可与商业同类产品相当,并可制造具有良好全向性和峰值增益为 1.35 dBi 的 7 GHz 单极天线。更重要的是,提出了构建 3D 可变形电子系统的总体方案,包括独特的图案化程序和受剪纸启发的合理切割设计。例如,可变形透明湿度传感器被制造用于肘部和指关节,用于出汗监测。这里展示的 3D 可变形系统构建策略具有多种用途,对于未来多样化和复杂表皮表面的高级健康监测具有广阔的前景。
更新日期:2018-10-16
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