TY - JOUR
T1 - A thin, deformable, high-performance supercapacitor implant that can be biodegraded and bioabsorbed within an animal body
AU - Sheng, Hongwei
AU - Zhou, Jingjing
AU - Li, Bo
AU - He, Yuhang
AU - Zhang, Xuetao
AU - Liang, Jie
AU - Zhou, Jinyuan
AU - Su, Qing
AU - Xie, Erqing
AU - Lan, Wei
AU - Wang, Kairong
AU - Yu, Cunjiang
N1 - Publisher Copyright:
Copyright © 2021 The Authors, some rights reserved;
PY - 2021/1/6
Y1 - 2021/1/6
N2 - It has been an outstanding challenge to achieve implantable energy modules that are mechanically soft (compatible with soft organs and tissues), have compact form factors, and are biodegradable (present for a desired time frame to power biodegradable, implantable medical electronics). Here, we present a fully biodegradable and bioabsorbable high-performance supercapacitor implant, which is lightweight and has a thin structure, mechanical flexibility, tunable degradation duration, and biocompatibility. The supercapacitor with a high areal capacitance (112.5 mF cm−2 at 1 mA cm−2) and energy density (15.64 μWh cm−2) uses two-dimensional, amorphous molybdenum oxide (MoOx) flakes as electrodes, which are grown in situ on water-soluble Mo foil using a green electrochemical strategy. Biodegradation behaviors and biocompatibility of the associated materials and the supercapacitor implant are systematically studied. Demonstrations of a supercapacitor implant that powers several electronic devices and that is completely degraded after implantation and absorbed in rat body shed light on its potential uses.
AB - It has been an outstanding challenge to achieve implantable energy modules that are mechanically soft (compatible with soft organs and tissues), have compact form factors, and are biodegradable (present for a desired time frame to power biodegradable, implantable medical electronics). Here, we present a fully biodegradable and bioabsorbable high-performance supercapacitor implant, which is lightweight and has a thin structure, mechanical flexibility, tunable degradation duration, and biocompatibility. The supercapacitor with a high areal capacitance (112.5 mF cm−2 at 1 mA cm−2) and energy density (15.64 μWh cm−2) uses two-dimensional, amorphous molybdenum oxide (MoOx) flakes as electrodes, which are grown in situ on water-soluble Mo foil using a green electrochemical strategy. Biodegradation behaviors and biocompatibility of the associated materials and the supercapacitor implant are systematically studied. Demonstrations of a supercapacitor implant that powers several electronic devices and that is completely degraded after implantation and absorbed in rat body shed light on its potential uses.
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U2 - 10.1126/sciadv.abe3097
DO - 10.1126/sciadv.abe3097
M3 - Article
C2 - 33523998
AN - SCOPUS:85099173717
SN - 2375-2548
VL - 7
JO - Science Advances
JF - Science Advances
IS - 2
M1 - eabe3097
ER -