Piezoelectric Conduit

A piezoelectric conduit is a tubular device made from a material that generates electrical charge when mechanically deformed, combining physical guidance with electrical signaling. In neuroscience, the conduit can surround or bridge a damaged nerve, where movement, compression, or other mechanical forces deform the piezoelectric material and produce localized electrical cues; its architecture also provides a protected pathway for axonal growth. These conduits are being investigated for peripheral nerve repair, neural tissue engineering, and bioelectronic interfaces, where aligned regeneration and electrical stimulation may support functional recovery. Their performance depends on material composition, mechanical properties, electrical output, and compatibility with surrounding tissue.

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JoVE EoE - Neurotherapeutics

Schwann Cell-Seeded Conduits for Axonal Regeneration After Spinal Cord Injury

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2025

Source: Lee, Y., et.al. Transplantation of Schwann Cells Inside PVDF-TrFE Conduits to Bridge Transected Rat Spinal Cord Stumps to Promote Axon Regeneration Across the Gap. J. Vis. Exp. (2017)This video demonstrates the use of a piezoelectric polymer conduit seeded with Schwann cells to promote axon regeneration in a transected rat spinal cord. The conduit provides structural guidance, while its bioelectric properties stimulate neurite outgrowth. Schwann cells within the conduit secrete...

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

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Cited by 8 •

2016

This protocol describes the procedure of measuring the temperature dependence of the full set material constants of piezoelectric materials using resonant ultrasound spectroscopy (RUS).

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

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Cited by 4 •

2016

One-step fabrication method for obtaining freestanding epitaxial double heterostructure is presented. This approach could achieve ZnO coverage with a higher number density than that of the epitaxial single heterostructure, leading to a piezoelectric nanogenerator with an increased output electrical performance.

Transplantation of Schwann Cells Inside PVDF-TrFE Conduits to Bridge Transected Rat Spinal Cord Stumps to Promote Axon Regeneration Across the Gap

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Cited by 10 •

2017

This article describes a technique to insert a hollow conduit between the spinal cord stumps after complete transection and fill with Schwann cells (SCs) and injectable basement membrane matrix in order to bridge and promote axon regeneration across the gap.

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

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Cited by 3 •

2020

Fabrication of piezoelectric thickness mode transducers via direct current sputtering of plate electrodes on lithium niobate is described. Additionally, reliable operation is achieved with a transducer holder and fluid supply system and characterization is demonstrated via impedance analysis, laser doppler vibrometry, high-speed imaging, and droplet size distribution using laser scattering.

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