Recent advances in nanogenerator-driven self-powered implantable biomedical devices

M A Parvez Mahmud, Nazmul Huda, Shahjadi Hisan Farjana, Mohsen Asadnia, Candace Lang

Research output: Contribution to journalReview article

56 Citations (Scopus)

Abstract

Implantable medical devices (IMDs) have experienced a rapid progress in recent years to the advancement of state-of-the-art medical practices. However, the majority of this equipment requires external power sources like batteries to operate, which may restrict their application for in vivo situations. Furthermore, these external batteries of the IMDs need to be changed at times by surgical processes once expired, causing bodily and psychological annoyance to patients and rising healthcare financial burdens. Currently, harvesting biomechanical energy in vivo is considered as one of the most crucial energy-based technologies to ensure sustainable operation of implanted medical devices. This review aims to highlight recent improvements in implantable triboelectric nanogenerators (iTENG) and implantable piezoelectric nanogenerators (iPENG) to drive self-powered, wireless healthcare systems. Furthermore, their potential applications in cardiac monitoring, pacemaker energizing, nerve-cell stimulating, orthodontic treatment and real-time biomedical monitoring by scavenging the biomechanical power within the human body, such as heart beating, blood flowing, breathing, muscle stretching and continuous vibration of the lung are summarized and presented. Finally, a few crucial problems which significantly affect the output performance of iTENGs and iPENGs under in vivo environments are addressed.

Original languageEnglish
Article number1701210
Pages (from-to)1-25
Number of pages25
JournalAdvanced Energy Materials
Volume8
Issue number2
Early online date18 Sep 2017
DOIs
Publication statusPublished - 15 Jan 2018

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