Coaxial 3D-Printed and kirigami-inspired deployable wearable electronics for complex body surfaces
Coaxial 3D-Printed and kirigami-inspired deployable wearable electronics for complex body surfaces
复制标题
适用于复杂身体表面的同轴 3D 打印和剪纸启发的可部署可穿戴电子设备
DOI：
10.1016/j.compscitech.2021.109041
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发表时间：
2021
影响因子：
9.1
通讯作者：
Xinglong Gong
中科院分区：
文献类型：
--
作者：
Shuaishuai Zhang;Sheng Wang;Yuxiang Zheng;Run Yang;Erbao Dong;Liang Lu;Shouhu Xuan;Xinglong Gong
用于捕获生物信号的可穿戴电子设备在人机交互、健康监测和临床治疗中非常重要。然而，对于弯曲或不规则的身体表面，与皮肤的紧密接触是具有挑战性的，这对于鲁棒的信号记录是必不可少的。在这项研究中，使用同轴3D打印技术和kirigami启发的图案开发了柔性芯鞘光纤传感器和自适应设备。成功应用于人机交互的印刷芯鞘光纤表现出优异的机电性能，传感应变范围为700%，具有约3 mN的高精度和高机电耐久性。此外，芯材料（剪切硬化凝胶）的粘弹性性质通过缓冲51%的冲击力同时在4 ms内捕获动态冲击，为纤维阵列提供了抵抗外部伤害的良好能量耗散性能。此外，将kirigami启发的可变形性引入平面电子器件促进了传感设备与3D曲面的基本可调节性的贴合连接;它们可以适应不同尺寸的鞋垫，而不会影响它们的灵敏度。用于创建自适应和灵活的可穿戴电子产品的3D打印技术和kirigami启发的图案设计，对于各种复杂表皮表面的高级健康监测具有巨大潜力。
Wearable electronics used to capture biological signals are substantially important in human–robot interactions, health monitoring, and clinical treatment. However, for curved or irregular body surfaces, intimate interfacing with the skin, which is essential for robust signal recording, is challenging. In this study, flexible core-sheath fiber sensors and adaptive devices were developed using a coaxial 3D printing technique and kirigami-inspired patterns. The printed core-sheath fiber, which was successfully applied in human–robot interaction, exhibited excellent electromechanical properties with a sensing strain range of 700%, and had high accuracy of approximately 3 mN and high electromechanical durability. In addition, the viscoelastic nature of the core material (shear-stiffening gel) provided the fiber array with fine energy dissipation performance against external harm by buffering the impact force by 51% while simultaneously capturing the dynamic impact in 4 ms. Moreover, the introduction of kirigami-inspired deformability to planar electronics facilitated conformable attachment of sensing devices with substantial adjustability to 3D curved surfaces; they can be adapted to shoe pads of different sizes without compromising their sensitivity. The 3D printing technique and kirigami-inspired pattern designs for creating adaptive and flexible wearable electronics hold great potential for advanced health monitoring of diverse and complex epidermal surfaces.