Instrumentation for electrochemical performance characterization of neural electrodes

Characterization of Nanostructured Electrodes for Neural Implant

In recent years, researchers have been working on a way to interface living cells, such as neurons, to an electronic chain of acquisition to create a brain computer interface (BCI) system. Significant success has been reported using multi-electrode arrays implanted in motor cortex of paraplegic patient [1] to control a computer mouse or in a monkey’s cortex [2] to move a mechanical arm. But all...

PERFORMANCE OF AB, ALLOYS FOR HYDROGEN STORAGE AND HYDRIDE ELECTRODES

Two types of hydride electxodes are potential candidates to replace the Cd elecsode in NilCd batteries, One is of the A type where A is a rare earth metal or mixture thereof, and B is the transition metal. The other is commonly referred to as A type. A , type alloys with partial substitution of the B element in A type hydride material (Ovonic) with Co, Mn, Al, and Fe were studied (A compo...

Electrochemical Characterization of Single-Walled Carbon Nanotube Electrodes

Scanning electrochemical microscopy. 41. Theory and characterization of ring electrodes.

Ring ultramicroelectrodes, which are of particular interest as probes for scanning electrochemical microscopy (SECM), combined with near-field scanning optical microscopy, were investigated. Theoretical SECM tip current-distance (approach) curves for a ring electrode were calculated by numerical (finite element) analysis. The SECM curves obtained were a function of the geometry of the tips incl...

Composite Electrodes for Electrochemical Supercapacitors

Manganese dioxide nanofibers with length ranged from 0.1 to 1 μm and a diameter of about 4-6 nm were prepared by a chemical precipitation method. Composite electrodes for electrochemical supercapacitors were fabricated by impregnation of the manganese dioxide nanofibers and multiwalled carbon nanotubes (MWCNT) into porous Ni plaque current collectors. Obtained composite electrodes, containing 8...