Deep-brain silicon multielectrodes with surface-modified Pt recording sites

Gergely Marton, Zoltan Fekete, Istvan Bakos, Gabor Battistig, Anita Pongracz, Peter Baracskay, Gabor Juhasz, Istvan Barsony

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Extreme-long (up to 70 mm) Si neural multielectrodes are presented for the first time. Probes with different shaft lengths (15-70 mm) were formed by deep reactive ion etching and have been equipped with Pt recording sites of various configurations. In vivo measurements on rodents indicated good mechanical stability, robust implantation and targeting capability, and high quality signals from different locations of the cerebrum have been recorded. The accompanied tissue damage was characterized by histology. With platinum electroplating, electrical impedance reduction was achieved, the improved charge transfer capability was characterized by cyclic voltammetry.

Original languageEnglish
Title of host publicationIEEE SENSORS 2012 - Proceedings
Publication statusPublished - Dec 1 2012
Event11th IEEE SENSORS 2012 Conference - Taipei, Taiwan, Province of China
Duration: Oct 28 2012Oct 31 2012

Publication series

NameProceedings of IEEE Sensors


Other11th IEEE SENSORS 2012 Conference
CountryTaiwan, Province of China


ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Marton, G., Fekete, Z., Bakos, I., Battistig, G., Pongracz, A., Baracskay, P., Juhasz, G., & Barsony, I. (2012). Deep-brain silicon multielectrodes with surface-modified Pt recording sites. In IEEE SENSORS 2012 - Proceedings [6411325] (Proceedings of IEEE Sensors).