| 摘要 |
A microelectrode (2) for neural interfacing applications comprises a first substrate layer (4), a second attachment layer (6), and a third layer (8) forming the active part of the electrode (2) of which the material consists of synthetic diamond made in electrically conductive by doping with atoms chosen from boron, nitrogen and phosphorus atoms. The material of the third layer (8) is a textured material that comprises a compact assembly, in the form of a brush, of tubes (26) each comprising, in the form of at in least one peripheral outer layer, polycrystalline diamond made electrically conductive by doping. The tubes (26) are separated from each other at the first fixed ends (28) of same and project the free ends (30) of same away from the first and second layers (4, 6) in a direction that is substantially vertical relative to the extension plane (20) of the second layer (6). A method for producing said microelectrode is also described. |
| 主权项 |
1. A microelectrode for neural interfacing applications
comprising a stack of a first layer of substrate in a first biocompatible material, a second adhesion layer in a second material for initiating the growth of synthetic diamond crystals, and a third layer in a third electrically conductive material, including poly-crystalline diamond doped with atoms comprised in the set formed by boron atoms, nitrogen atoms and phosphorus atoms, the first, second, third layers (1, 6, 8) having mutually parallel extension planes, characterized in that the third material is a textured material which comprises a compact set, as a brush, of hollow or solid tubes, each consisting of at least one peripheral layer, radially external, of doped poly-crystalline diamond, radially deposited by growth at high temperature, the tubes each having a first end attached to the second layer and a second free end, intended to be the active portion of the electrode, the tubes being separated from each other by an empty space at their first ends and projecting their second ends in a direction away from the first and second layers substantially normal with respect to the extension plane of the second layer. |
