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Zhong H, Zhang K, Zhou M, Xing C, An Y, Zhang Q, Guo J, Liu S, Qu Z, Feng S, Ning G. An Implantable Self-Driven Diaphragm Pacing System Based on a Microvibration Triboelectric Nanogenerator for Phrenic Nerve Stimulation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43199-43211. [PMID: 39120580 PMCID: PMC11346467 DOI: 10.1021/acsami.4c03715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024]
Abstract
Spinal cord injury poses considerable challenges, particularly in diaphragm paralysis. To address limitations in existing diaphragm pacing technologies, we report an implantable, self-driven diaphragm pacing system based on a microvibration triboelectric nanogenerator (MV-TENG). Leveraging the efficient MV-TENG, the system harvests micromechanical energy and converts this energy into pulses for phrenic nerve stimulation. In vitro tests confirm a stable MV-TENG output, while subcutaneous implantation of the device in rats results in a constant amplitude over 4 weeks with remarkable energy-harvesting efficacy. The system effectively induces diaphragmatic motor-evoked potentials, triggering contractions of the diaphragm. This proof-of-concept system has potential clinical applications in implantable phrenic nerve stimulation, presenting a novel strategy for advancing next-generation diaphragm pacing devices.
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Affiliation(s)
- Hao Zhong
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
| | - Ke Zhang
- College
of Electronic Information and Automation, Advanced Structural Integrity
International Joint Research Center, Tianjin
University of Science and Technology, Tianjin 300222, People’s Republic of China
| | - Mi Zhou
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
| | - Cong Xing
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
| | - Yang An
- College
of Electronic Information and Automation, Advanced Structural Integrity
International Joint Research Center, Tianjin
University of Science and Technology, Tianjin 300222, People’s Republic of China
| | - Qi Zhang
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
| | - Junrui Guo
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
| | - Song Liu
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
| | - Zhigang Qu
- College
of Electronic Information and Automation, Advanced Structural Integrity
International Joint Research Center, Tianjin
University of Science and Technology, Tianjin 300222, People’s Republic of China
| | - Shiqing Feng
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
| | - Guangzhi Ning
- Department
of Orthopedics, Tianjin Medical University
General Hospital, Tianjin 300052, People’s
Republic of China
- International
Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin 300052, People’s Republic of China
- Tianjin
Key Laboratory of Spine and Spinal Cord Injury, Tianjin 300052, People’s Republic of China
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Li J, Che Z, Wan X, Manshaii F, Xu J, Chen J. Biomaterials and bioelectronics for self-powered neurostimulation. Biomaterials 2024; 304:122421. [PMID: 38065037 DOI: 10.1016/j.biomaterials.2023.122421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/30/2023]
Abstract
Self-powered neurostimulation via biomaterials and bioelectronics innovation has emerged as a compelling approach to explore, repair, and modulate neural systems. This review examines the application of self-powered bioelectronics for electrical stimulation of both the central and peripheral nervous systems, as well as isolated neurons. Contemporary research has adeptly harnessed biomechanical and biochemical energy from the human body, through various mechanisms such as triboelectricity, piezoelectricity, magnetoelasticity, and biofuel cells, to power these advanced bioelectronics. Notably, these self-powered bioelectronics hold substantial potential for delivering neural stimulations that are customized for the treatment of neurological diseases, facilitation of neural regeneration, and the development of neuroprosthetics. Looking ahead, we expect that the ongoing advancements in biomaterials and bioelectronics will drive the field of self-powered neurostimulation toward the realization of more advanced, closed-loop therapeutic solutions, paving the way for personalized and adaptable neurostimulators in the coming decades.
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Affiliation(s)
- Jinlong Li
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ziyuan Che
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xiao Wan
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Farid Manshaii
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Jing Xu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
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