Epidermal Impedance Sensing Sheets for Precision Hydration Assessment and Spatial Mapping

被引：85

作者：

Huang, Xian ^{[1
]}

Cheng, Huanyu ^{[2
]}

Chen, Kaile ^{[1
]}

Zhang, Yilin

Zhang, Yihui

Liu, Yuhao ^{[1
]}

Zhu, Chenqi ^{[1
]}

Ouyang, Shao-chi ^{[1
]}

Kong, Gil-Woo ^{[1
]}

Yu, Cunjiang ^{[1
]}

Huang, Yonggang ^{[2
]}

Rogers, John A. ^{[1
]}

机构：

[1] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA

[2] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 2013年 / 60卷 / 10期

关键词：

Depth profiling; epidermal electronics; hydration sensing; multiplexing; spatial mapping; STRATUM-CORNEUM HYDRATION; TRANSEPIDERMAL WATER-LOSS; SKIN SURFACE HYDRATION; IN-VIVO; ELECTRICAL-PROPERTIES; ATOPIC ECZEMA; TISSUE; ACCUMULATION; FRICTION; STRESS;

D O I：

10.1109/TBME.2013.2264879

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper presents a class of hydration monitor that uses ultrathin, stretchable sheets with arrays of embedded impedance sensors for precise measurement and spatially multiplexed mapping. The devices contain miniaturized capacitive electrodes arranged in amatrix format, capable of integration with skin in a conformal, intimate manner due to the overall skin-like physical properties. These "epidermal" systems noninvasively quantify regional variations in skin hydration, at uniform or variable skin depths. Experimental results demonstrate that the devices possess excellent uniformity, with favorable precision and accuracy. Theoretical models capture the underlying physics of the measurement and enable quantitative interpretation of the experimental results. These devices are appealing for applications ranging from skin care and dermatology, to cosmetology and health/wellness monitoring, with the additional potential for combined use with other classes of sensors for comprehensive, quantitative physiological assessment via the skin.

引用

页码：2848 / 2857

页数：10

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