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Self-Powered Real-Time Arterial Pulse Monitoring Using Ultrathin Epidermal Piezoelectric Sensors

Authors
 Dae Yong Park  ;  Daniel J. Joe  ;  Dong Hyun Kim  ;  Hyewon Park  ;  Jae Hyun Han  ;  Chang Kyu Jeong  ;  Hyelim Park  ;  Jung Gyu Park  ;  Boyoung Joung  ;  Keon Jae Lee 
Citation
 Advanced Materials, Vol.29(37) : 1702308, 2017 
Journal Title
 Advanced Materials 
ISSN
 0935-9648 
Issue Date
2017
Keywords
arterial pulse monitoring ; laser lift-off ; real-time monitoring ; self-powered ; ultrathin piezoelectric sensors
Abstract
Continuous monitoring of an arterial pulse using a pressure sensor attached on the epidermis is an important technology for detecting the early onset of cardiovascular disease and assessing personal health status. Conventional pulse sensors have the capability of detecting human biosignals, but have significant drawbacks of power consumption issues that limit sustainable operation of wearable medical devices. Here, a self-powered piezoelectric pulse sensor is demonstrated to enable in vivo measurement of radial/carotid pulse signals in near-surface arteries. The inorganic piezoelectric sensor on an ultrathin plastic achieves conformal contact with the complex texture of the rugged skin, which allows to respond to the tiny pulse changes arising on the surface of epidermis. Experimental studies provide characteristics of the sensor with a sensitivity (≈0.018 kPa-1 ), response time (≈60 ms), and good mechanical stability. Wireless transmission of detected arterial pressure signals to a smart phone demonstrates the possibility of self-powered and real-time pulse monitoring system.
Full Text
https://onlinelibrary.wiley.com/doi/full/10.1002/adma.201702308
DOI
10.1002/adma.201702308
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Joung, Bo Young(정보영) ORCID logo https://orcid.org/0000-0001-9036-7225
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/165113
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