TY  - JOUR
A1  - Schweigmann, Michael
A1  - Kirchhoff, Frank
A1  - Koch, Klaus P.
T1  - Comparative study of platinum electroplating to improve micro gold electrode arrays with LCP laminate
T2  - Biomedical Engineering / Biomedizinische Technik
N2  - Decoding the cellular network interaction of neurons and glial cells are important in the development of new therapies for diseases of the central nervous system (CNS). Electrophysiological in vivo studies in mice will help to understand the highly complex network. In this paper, the optimization of epidural liquid crystal polymer (LCP) electrodes for different platinum electroplating parameters are presented and compared. Constant current and pulsed current electroplating varied in strength and duration was used to decrease the electrode impedance and to increase the charge storage capacity (CSCc). In best cases, both methods generated similar results with an impedance reduction of about 99%. However, electroplating with pulsed currents was less parameter-dependent than the electroplating with constant current. The use of ultrasound was essential to generate platinum coatings without plating defects. Electrode model parameters extracted from the electrode impedance reflected the increase in surface porosity due to the electroplating processes.
KW  - Zentralnervensystem
KW  - Elektrophysiologie
KW  - Flüssigkristalline Polymere
KW  - charge storage capacity (CSCc)
KW  - electrode impedance
KW  - electrode model
KW  - electroplating
KW  - platinum
KW  - pulsed current
KW  - ultrasound
Y1  - 2022
UR  - https://hst.opus.hbz-nrw.de/frontdoor/index/index/docId/92
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:tr5-928
VL  - 67
IS  - 1
SP  - 33
EP  - 42
PB  - De Gruyter
ER  -