title: Biodegradable triboelectric nanogenerator as a life-time designed implantable power source.
abstract: Transient electronics built with degradable organic and inorganic materials is an emerging area and has shown great potential for in vivo sensors and therapeutic devices. However, most of these devices require external power sources to function, which may limit their applications for in vivo cases. We report a biodegradable triboelectric nanogenerator (BD-TENG) for in vivo biomechanical energy harvesting, which can be degraded and resorbed in an animal body after completing its work cycle without any adverse long-term effects. Tunable electrical output capabilities and degradation features were achieved by fabricated BD-TENG using different materials. When applying BD-TENG to power two complementary micrograting electrodes, a DC-pulsed electrical field was generated, and the nerve cell growth was successfully orientated, showing its feasibility for neuron-repairing process. Our work demonstrates the potential of BD-TENG as a power source for transient medical devices.
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, PR China.
authors.forename: Qiang
authors.identifier: 0000-0001-7415-9581
authors.initials: Q
authors.lastname: Zheng
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, PR China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Zou
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, PR China.
authors.forename: Yalan
authors.identifier: 0000-0003-3185-2305
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, PR China.
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, PR China.
authors.forename: Bojing
authors.initials: B
authors.lastname: Shi
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, PR China.
authors.forename: Xinxin
authors.initials: X
authors.lastname: Wang
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, PR China.
authors.forename: Yiming
authors.initials: Y
authors.lastname: Jin
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, PR China.
authors.forename: Han
authors.identifier: 0000-0002-5469-8235
authors.initials: H
authors.lastname: Ouyang
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, PR China.
authors.forename: Zhou
authors.initials: Z
authors.lastname: Li
authors.affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, PR China.; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245, USA.
authors.forename: Zhong Lin
authors.initials: ZL
authors.lastname: Wang
mesh_terms: D001673:Biodegradation, Environmental; D011211:Electric Power Supplies; D004867:Equipment Design; D036103:Nanotechnology
keywords: biodegradable; implantable medical devices; power source; transient electronics; triboelectric nanogenerator