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. 2022 Dec 5;22(23):9506. doi: 10.3390/s22239506

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a) Experimental schematic representation of in vivo self−powered wireless data transmission using flexible a PMN−PZT-Mn energy harvester attached to a porcine heart. (b) Photograph of flexible PMN−PZT−Mn harvester attached to a porcine heart. (c) Magnified current and ECG response from the porcine heartbeat. (d) Circuit diagrams of the wireless communication module consisting of (i) transmitter and (ii) receiver parts. (e) Specifications of the wireless communication module. (f) Photograph of big animal experiment. Reproduced with permission [133].