期刊
BIOSENSORS & BIOELECTRONICS
卷 92, 期 -, 页码 364-371出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2016.10.095
关键词
Solar cell; Implantable; Medical electronic implants; Energy; Human skin; Bioelectronic devices
类别
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2016R1A2B4012854]
- GIST-Caltech Research Collaboration Project by GIST
- National Research Foundation of Korea [2016R1A2B4012854] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Medical electronic implants can significantly improve people's health and quality of life. These implants are typically powered by batteries, which usually have a finite lifetime and therefore must be replaced periodically using surgical procedures. Recently, subdermal solar cells that can generate electricity by absorbing light transmitted through skin have been proposed as a sustainable electricity source to power medical electronic implants in bodies. However, the results to date have been obtained with animal models. To apply the technology to human beings, electrical performance should be characterized using human skin covering the subdermal solar cells. In this paper, we present electrical performance results (up to 9.05 mW/cm(2)) of the implantable solar cell array under 59 human skin samples isolated from 10 cadavers. The results indicate that the power densities depend on the thickness and tone of the human skin, e.g., higher power was generated under thinner and brighter skin. The generated power density is high enough to operate currently available medical electronic implants such as pacemakers that require tens of microwatt.
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