期刊
ADVANCED FUNCTIONAL MATERIALS
卷 27, 期 25, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201700341
关键词
in vivo energy harvesting; piezoelectric single crystals; self-powered systems; wireless data transmission
类别
资金
- Korean Healthcare Technology R&D Project - Ministry of Health Welfare [HI16C0058, HI15C1200]
- Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning (MSIP) [2016M3A7B4910636]
- Global Frontier R&D Program on Center for Integrated Smart Sensors - MSIP through NRF of Korea government [CISS-2016M3A6A6929958]
- Wearable Platform Materials Technology Center (WMC) - NRF Grant of the Korean Government (MSIP) [2016R1A5A1009926]
- Korea Health Promotion Institute [HC15C1200010017] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2015M3A6A6066117, 2016M3A7B4910636, 2016R1A5A1009926] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Additional surgeries for implantable biomedical devices are inevitable to replace discharged batteries, but repeated surgeries can be a risk to patients, causing bleeding, inflammation, and infection. Therefore, developing self-powered implantable devices is essential to reduce the patient's physical/psychological pain and financial burden. Although wireless communication plays a critical role in implantable biomedical devices that contain the function of data transmitting, it has never been integrated with in vivo piezoelectric self-powered system due to its high-level power consumption (microwatt-scale). Here, wireless communication, which is essential for a ubiquitous healthcare system, is successfully driven with in vivo energy harvesting enabled by high-performance single-crystalline (1-x)Pb(Mg1/3Nb2/3)O-3-(x) Pb(Zr, Ti)O-3 (PMN-PZT). The PMN-PZT energy harvester generates an open-circuit voltage of 17.8 V and a short-circuit current of 1.74 mu A from porcine heartbeats, which are greater by a factor of 4.45 and 17.5 than those of previously reported in vivo piezoelectric energy harvesting. The energy harvester exhibits excellent biocompatibility, which implies the possibility for applying the device to biomedical applications.
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