Wearable Circuits Sintered at Room Temperature Directly on The Skin Surface for Health Monitoring.,ACS Applied Materials & Interfaces

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Wearable Circuits Sintered at Room Temperature Directly on The Skin Surface for Health Monitoring.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-09-11 , DOI: 10.1021/acsami.0c11479
Ling Zhang _{1,

2,

3} , Hongjun Ji _{1,

2,

4} , Houbing Huang ₅ , Ning Yi ₆ , Xiaoming Shi ₅ , Senpei Xie _{2,

4} , Yaoyin Li _{2,

4} , Ziheng Ye ₄ , Pengdong Feng _{2,

4} , Tiesong Lin ₁ , Xiangli Liu ₄ , Xuesong Leng ₁ , Mingyu Li _{1,

2,

4} , Jiaheng Zhang _{1,

2,

4} , Xing Ma _{1,

2,

4} , Peng He ₁ , Weiwei Zhao _{1,

2,

4} , Huanyu Cheng _{3,

6}

Affiliation

A soft body area sensor network presents a promising direction in wearable devices to integrate on-body sensors for physiological signal monitoring and flexible printed circuit boards (FPCBs) for signal conditioning/readout and wireless transmission. However, its realization currently relies on various sophisticated fabrication approaches such as lithography or direct printing on a carrier substrate before attaching to the body. Here, we report a universal fabrication scheme to enable printing and room-temperature sintering of the metal nanoparticle on paper/fabric for FPCBs and directly on the human skin for on-body sensors with a novel sintering aid layer. Consisting of polyvinyl alcohol (PVA) paste and nanoadditives in the water, the sintering aid layer reduces the sintering temperature. Together with the significantly decreased surface roughness, it allows for the integration of a submicron-thick conductive pattern with enhanced electromechanical performance. Various on-body sensors integrated with an FPCB to detect health conditions illustrate a system-level example.

中文翻译：

室温下直接在皮肤表面烧结的可穿戴电路，用于健康监测。

柔软的身体区域传感器网络为可穿戴设备提供了一个有希望的方向，以集成用于生理信号监测的人体传感器和用于信号调节/读出和无线传输的柔性印刷电路板（FPCB）。然而，其实现目前依赖于各种复杂的制造方法，例如光刻或在附接到主体上之前在载体基板上直接印刷。在这里，我们报告了一种通用的制造方案，该方案可以在纸/织物上对金属纳米颗粒进行印刷和室温烧结，以用于FPCB，并直接在人体皮肤上进行人体烧结，并具有新型的烧结助剂层。烧结助剂层由水中的聚乙烯醇（PVA）糊剂和纳米添加剂组成，可降低烧结温度。加上表面粗糙度的显着降低，它允许集成具有增强的机电性能的亚微米级导电图案。与FPCB集成在一起以检测健康状况的各种人体传感器说明了系统级示例。

更新日期：2020-10-07

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