Wearable Circuits Sintered at Room Temperature Directly on the Skin Surface for Health Monitoring

Ling Zhang; Hongjun Ji; Houbing Huang; Ning Yi; Xiaoming Shi; Senpei Xie; Yaoyin Li; Ziheng Ye; Pengdong Feng; Tiesong Lin; Xiangli Liu; Xuesong Leng; Mingyu Li; Jiaheng Zhang; Xing Ma; Peng He; Weiwei Zhao; Huanyu Cheng

doi:10.1021/acsami.0c11479

Wearable Circuits Sintered at Room Temperature Directly on the Skin Surface for Health Monitoring

Ling Zhang, Hongjun Ji, Houbing Huang, Ning Yi, Xiaoming Shi, Senpei Xie, Yaoyin Li, Ziheng Ye, Pengdong Feng, Tiesong Lin, Xiangli Liu, Xuesong Leng, Mingyu Li, Jiaheng Zhang, Xing Ma, Peng He, Weiwei Zhao, Huanyu Cheng

Advanced Research Institute of Multidisciplinary Science

Research output: Contribution to journal › Article › peer-review

70 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	45504-45515
Number of pages	12
Journal	ACS applied materials & interfaces
Volume	12
Issue number	40
DOIs	https://doi.org/10.1021/acsami.0c11479
Publication status	Published - 7 Oct 2020

Keywords

body area sensor network
directly printed on-body sensors
flexible printed circuit boards
room-temperature sintering
sintering aid layer

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsami.0c11479

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title = "Wearable Circuits Sintered at Room Temperature Directly on the Skin Surface for Health Monitoring",

abstract = "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.",

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AU - Li, Yaoyin

AU - Ye, Ziheng

AU - Feng, Pengdong

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AU - Liu, Xiangli

AU - Leng, Xuesong

AU - Li, Mingyu

AU - Zhang, Jiaheng

AU - Ma, Xing

AU - He, Peng

AU - Zhao, Weiwei

AU - Cheng, Huanyu

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Wearable Circuits Sintered at Room Temperature Directly on the Skin Surface for Health Monitoring

Abstract

Keywords

UN SDGs

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