Fabrication and characterization of a new class of microelectrode arrays exhibiting steady-state current behavior

1993 ◽  
Vol 65 (11) ◽  
pp. 1643-1646 ◽  
Author(s):  
H. Ping. Wu
Keyword(s):  
Steady State ◽  
Microelectrode Arrays ◽  
New Class ◽  
Steady State Current ◽  
Fabrication And Characterization ◽  
Current Behavior

Fabrication and Characterization of Biodegradable Metal Based Microelectrodes for In Vivo Neural Recording

MRS Advances ◽  
2019 ◽  
Vol 4 (46-47) ◽  
pp. 2471-2477
Author(s):  
Chaoxing Zhang ◽  
Teresa H. Wen ◽  
Khaleel A. Razak ◽  
Jiajia Lin ◽  
Edgar Villafana ◽  
...  
Keyword(s):  
Neural Recording ◽  
Neural Signals ◽  
Secondary Surgery ◽  
New Class ◽  
Fabrication And Characterization ◽  
Evoked Activity ◽  
First Time ◽  
The Brain

ABSTRACT:Neural electrodes have been widely used to monitor neural signals and/or deliver electrical stimulation in the brain. Currently, biodegradable and biocompatible materials have been actively investigated to create temporary electrodes that could degrade after serving their functions for neural recording and stimulation from days to months. The new class of biodegradable electrodes eliminate the necessity of secondary surgery for electrode removal. In this study, we created biodegradable, biocompatible, and implantable magnesium (Mg)-based microelectrodes for in vivo neural recording for the first time. Specifically, conductive poly-3,4-ethylenedioxythiophene (PEDOT) was first deposited onto Mg microwire substrates by electrochemical deposition, and a biodegradable insulating polymer was subsequently sprayed onto the surface of electrodes. The tip of electrodes was designed to be conductive for neural recording and stimulation, while the rest of electrodes was insulated with a polymer that is biocompatible with neural tissue. The impedance of Mg-based microelectrodes and their performance during neural recording in the auditory cortex of a mouse were studied. The results first demonstrated the capability of Mg-based microelectrodes for in vivo recording of multi-unit stimulus-evoked activity in the brain.

Fabrication and Characterization of Sputtered-Carbon Microelectrode Arrays

1996 ◽  
Vol 68 (11) ◽  
pp. 1858-1864 ◽  
Author(s):  
G. Sreenivas ◽  
Simon S. Ang ◽  
Ingrid Fritsch ◽  
William D. Brown ◽  
Greg A. Gerhardt ◽  
...  
Keyword(s):  
Microelectrode Arrays ◽  
Fabrication And Characterization

scholarly journals Fabrication and Characterization of 60 Channel Microelectrode Arrays for Recording and Stimulation from Cardiac Cells in Culture

2016 ◽  
Vol 11 (3) ◽  
Author(s):  
Vanessa Pereira Gomes ◽  
Angelica Denardi De Barros ◽  
João-Batista Destro-Filho ◽  
Sergio Martinoia ◽  
Alberto Pasquarelli ◽  
...  
Keyword(s):  
Microelectrode Arrays ◽  
Electrical Characterization ◽  
Cardiac Cells ◽  
Neural Prostheses ◽  
Function Generator ◽  
Order Difference ◽  
Lower Amplitude ◽  
Electrocardiogram Signal ◽  
Fabrication And Characterization

Stimulation and recording of nerve cells is a procedure used for several applications, such as clinical therapies, study of basic neuroscience, and neural prostheses. Microtechnology and advances in material science have allowed to produce more sophisticated devices and with more functions. This paper focuses on the fabrication of planar 60 – channel Microelectrode Arrays (MEAs). The electrical characterization of the noise level from the TiN electrodes showed good sensitivity to noise, compatible with commercial systems. These electrodes received an artificial electrocardiogram signal (ECG) from a function generator and registered the same input signal but with lower amplitude. Finally, both cyclic voltammetry curves of the produced MEA and the commercial MEA exhibited similar shape, but the current density of the first one was significantly higher than in MCS – MEA, with an order difference of magnitude.

Fabrication and characterization of boron doped diamond microelectrode arrays of varied geometry

2016 ◽  
Vol 73 ◽  
pp. 10-14 ◽  
Author(s):  
Cory A. Rusinek ◽  
Michael F. Becker ◽  
Robert Rechenberg ◽  
Thomas Schuelke
Keyword(s):  
Microelectrode Arrays ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Fabrication And Characterization

FABRICATION AND CHARACTERIZATION OF UHTCMCS

2021 ◽  
Author(s):  
ANTONIO VINCI ◽  
LUCA ZOLI ◽  
PIETRO GALIZIA ◽  
LAURA SILVESTRONI ◽  
CARLOS GUTIÉRREZ ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Load Transfer ◽  
Microstructural Analysis ◽  
Point Of View ◽  
New Class ◽  
Operational Temperature ◽  
Fiber Reinforcements ◽  
Fabrication And Characterization ◽  
Sic Composites

The materials currently used in aerospace and aviation, such as C/C and C/SiC composites, possess excellent mechanical properties but are limited to a maximum operational temperature of 1600°C (C/SiC) and poorly oxidizing environments (C/C). For more demanding applications, new materials able to withstand extreme temperatures without recession are required. In the framework of the C3harme project, a new class of materials labelled UHTCMCs, consisting of a UHTC matrix reinforced with carbon fibers, has been developed and characterized in order to overcome these challenges. Different fiber reinforcements and sintering parameters have been investigated from the microstructural point of view. The composites were fabricated via slurry infiltration of fiber, using a powder mixture of ZrB2 and SiC; the green pellets were then sintered via hot pressing. Extensive microstructural analysis was carried out on the sintered samples, showing how the sintering parameters and the choice of the fibers are crucial to obtain full densification without jeopardizing the fibers integrity and permit adequate load transfer.

Characterization of Steady-State Current at Nanoelectrodes

2017 ◽  
Vol 75 (11) ◽  
pp. 1082 ◽  
Author(s):  
Hui Ma ◽  
Wei Ma ◽  
Zheyao Yang ◽  
Zhifeng Ding ◽  
Yi-Tao Long
Keyword(s):  
Steady State ◽  
Steady State Current
Sign in / Sign up

Export Citation Format

Share Document