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

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

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

Author(s) -

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

Publication year - 2020

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.0c11479

Subject(s) - materials science , fabrication , sintering , wearable computer , nanotechnology , electronic circuit , layer (electronics) , substrate (aquarium) , printed electronics , surface roughness , conductive ink , wearable technology , signal (programming language) , inkwell , flexible electronics , lithography , polyvinyl alcohol , soft lithography , optoelectronics , electrical engineering , computer science , composite material , embedded system , sheet resistance , programming language , medicine , geology , alternative medicine , oceanography , pathology , engineering

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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