期刊
ACS NANO
卷 14, 期 9, 页码 11743-11752出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.0c04464
关键词
wireless power transfer; capacitive power transfer; hydrogel; stretchable ionic conductor; ionic device; implantable device; electrosynthesis
类别
资金
- Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [NRF2018M3A7B4089670]
- Materials, Components, and Equipment Research Program - Gyeonggi Province [AICT-010-T2]
- Korean Government (MSIT) [2015R1A5A1037668]
- National Research Foundation of Korea [2015R1A5A1037668] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A number of implantable biomedical devices have been developed, and wireless power transfer (WPT) systems are emerging as a way to provide power to these devices without requiring a hardwired connection. Most of the WPT has been based on conventional conductive materials, such as metals, which tend to be less biocompatible and stiff. Herein, we describe a development of an ionic wireless power transfer (IWPT) system using hydrogel receivers that are soft and biocompatible. Although the hydrogel receiver has a lower conductivity than metal (rho(gel)/rho(metal similar to) 10(-7)), a capacitive coupling between receiver and transmitter enables the IWPT to deliver 4 mA of current at its resonance frequency. The capacitive coupling through the dielectric and the electrolyte was analyzed including a parasitic effect, and the IWPT was applied to implantable devices to transfer power via the skin. The IWPT system was further developed to facilitate electrosynthesis. Generation of nicotinamide adenine dinucleotide phosphate, a reducing agent in metabolism, was demonstrated by IWPT to show its potential for electrosynthesis.
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