한빛사논문
- 조회1,486
Dong Hyun Kim1, Hong Ju Shin2,†, Hyunseung Lee3, Chang Kyu Jeong4, Hyewon Park5, Geon-Tae Hwang6, Ho-Yong Lee7, Daniel J. Joe1, Jae Hyun Han1, Seung Hyun Lee1, Jaeha Kim3,*, Boyoung Joung5,* and Keon Jae Lee1,*
1 Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Yuseong-gu, Daejeon, Republic of Korea
2 Department of Thoracic and Cardiovascular Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Seowon-gu, Cheongju, Chungcheongbuk-do, Republic of Korea
3 Department of Electrical Engineering and Computer Science, Seoul National University, Gwanak-gu, Seoul, Republic of Korea
4 KAIST Institute for NanoCentury (KINC), Yuseong-gu, Daejeon, Republic of Korea
5 Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
6 Functional Ceramic Group, Korea Institute of Materials Science (KIMS), Seongsan-gu, Changwon, Gyeongsangnam-do, Republic of Korea
7 Ceracomp Co., Ltd., Seobuk-gu, Cheonan-si, Chungcheongnam-do, Republic of Korea
†Present address: Department of Thoracic and Cardiovascular Surgery, Korea University Ansan Hospital, Korea University College of Medicine, 123 Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15355, Republic of Korea
D.H.K., H.J.S., and H.L. contributed equally to this work.
*Corresponding authors
Abstract
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)O3-(x)Pb(Zr,Ti)O3 (PMN-PZT). The PMN-PZT energy harvester generates an open-circuit voltage of 17.8 V and a short-circuit current of 1.74 μA 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.
Keywords : in vivo energy harvesting; piezoelectric single crystals; self-powered systems; wireless data transmission
논문정보
- Research article
- 2017년 05월 (BRIC 등록일 2017-05-24)
- 국내 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
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