In Vivo Self-Powered Wireless Transmission Using Biocompatible Flexible Energy Harvesters

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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.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2017-07
Language
English
Article Type
Article
Keywords

TRIBOELECTRIC NANOGENERATOR; COMMUNICATION; PACEMAKER; DEVICES; SYSTEMS; SENSOR; HEART; VITRO; NANOSENSORS; GENERATOR

Citation

ADVANCED FUNCTIONAL MATERIALS, v.27, no.25

ISSN
1616-301X
DOI
10.1002/adfm.201700341
URI
http://hdl.handle.net/10203/225080
Appears in Collection
RIMS Journal PapersMS-Journal Papers(저널논문)
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