Graphene electrodes on a planar cubic silicon carbide (3C-SiC) long term implantable neuronal prosthetic device
US8751015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2013 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | May 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49155
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Graphene, can be used to make an implantable neuronal prosthetic which can be indefinitely implanted in vivo. Graphene electrodes are placed on a 3C—SiC shank and electrical insulation is provided by conformal insulating SiC. These materials are not only chemically resilient, physically durable, and have excellent electrical properties, but have demonstrated a very high degree of biocompatibility. Graphene also has a large specific capacitance in electrolytic solutions as well as a large surface area which reduces the chances for irreversible Faradaic reactions. Graphene can easily be constructed on SiC by the evaporation of Si from the surface of that material allowing for mechanically robust epitaxial graphene layers that can be fashioned into electrodes using standard lithography and etching methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.