Electron transfer processes occurring on platinum neural stimulating electrodes: a tutorial on the i(V e) profile
| Autor: | J. Thomas Mortimer, Darrel F. Untereker, Shawn C. Kelley, Doe Kumsa, Eric M Hudak, Narendra Bhadra |
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| Rok vydání: | 2016 |
| Předmět: |
Work (thermodynamics)
Computer science Biomedical Engineering chemistry.chemical_element Electrons 02 engineering and technology Electrolyte Electron computer.software_genre 03 medical and health sciences Cellular and Molecular Neuroscience Electron transfer Electrolytes 0302 clinical medicine Humans Iridium Electrodes Range (particle radiation) 021001 nanoscience & nanotechnology Electric Stimulation chemistry Chemical physics Electrode Data mining 0210 nano-technology Platinum computer 030217 neurology & neurosurgery Algorithms |
| Zdroj: | Journal of neural engineering. 13(5) |
| ISSN: | 1741-2552 |
| Popis: | The aim of this tutorial is to encourage members of the neuroprosthesis community to incorporate electron transfer processes into their thinking and provide them with the tools to do so when they design and work with neurostimulating devices. The focus of this article is on platinum because it is the most used electrode metal for devices in commercial use. The i(V e) profile or cyclic voltammogram contains information about electron transfer processes that can occur when the electrode-electrolyte interface, V e, is at a specific potential, and assumed to be near steady-state conditions. For the engineer/designer this means that if the potential is not in the range of a specific electron transfer process, that process cannot occur. An i(V e) profile, recorded at sweep rates greater than 0.1 mVs(-1), approximates steady-state conditions. Rapid transient potential excursions, like that seen with neural stimulation pulses, may be too fast for the reaction to occur, however, this means that if the potential is in the range of a specific electron transfer process it may occur and should be considered. The approach described here can be used to describe the thermodynamic electron transfer processes on other candidate electrode metals, e.g. stainless steel, iridium, carbon-based, etc. |
| Databáze: | OpenAIRE |
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