Functional Electrical Stimulation by Nanogenerator with 58 V Output Voltage

We demonstrate a new type of integrated nanogenerator based on arrays of vertically aligned piezoelectric ZnO nanowires. The peak open-circuit voltage and short-circuit current reach a record high level of 58 V and 134 μA, respectively, with a maximum power density of 0.78 W/cm3. The electric output...

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Bibliographic Details
Published in:Nano letters 2012-06, Vol.12 (6), p.3086-3090
Main Authors: Zhu, Guang, Wang, Aurelia C, Liu, Ying, Zhou, Yusheng, Wang, Zhong Lin
Format: Article
Language:English
Subjects:
Action Potentials - physiology
Animals
Applied sciences
Arrays
Cross-disciplinary physics: materials science
rheology
Electric potential
Electric Stimulation Therapy - instrumentation
Electronics
Equipment Design
Equipment Failure Analysis
Exact sciences and technology
Frogs
Materials science
Micro-Electrical-Mechanical Systems - instrumentation
Molecular electronics, nanoelectronics
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanostructure
Nanotechnology - instrumentation
Nanowires
Nerves
Physics
Piezoelectricity
Quantum wires
Ranidae
Sciatic Nerve - physiology
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Stimulation
Systems Integration
Voltage
Zinc Oxide - chemistry
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Summary:We demonstrate a new type of integrated nanogenerator based on arrays of vertically aligned piezoelectric ZnO nanowires. The peak open-circuit voltage and short-circuit current reach a record high level of 58 V and 134 μA, respectively, with a maximum power density of 0.78 W/cm3. The electric output was directly applied to a sciatic nerve of a frog, inducing innervation of the nerve. Vibrant contraction of the frog’s gastrocnemius muscle is observed as a result of the instantaneous electric input from the nanogenerator.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl300972f