Nanoelectrode arrays for measuring Sympathetic Nervous Activity

Aamer Mahmood, Peng Sheng Chen, A. George Akingba

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

1 Citation (Scopus)


This paper reports on the use of arrays of nanoelectrodes to measure activity of the Sympathetic Nervous System. Measurements of the Sympathetic Nervous Activity (SNA) have not been easy; primarily because of poor signal-to-noise ratio (SNR). We report improved SNR of SNA measurements achieved by the use of novel Planar Nanoelectrode Arrays (PNA). Nano scale features on the electrodes provide increased contact area with the host nerve reducing the limiting (Johnson) noise. These electrodes are fabricated using standard CMOS compatible fabrication techniques on a high resistivity silicon substrate and used to measure SNA in test animals. For comparison, traditional wire electrodes were used simultaneously to measure the same signal. The PNAs consistently exhibit significant improvement in the SNR of the measured SNA (35.71 dB vs. 25.08 dB for the wire electrode). Moreover, the PNAs are capable of recording events lost in the noise floor of the wire electrodes.

Original languageEnglish
Title of host publicationIEEE Sensors 2011 Conference, SENSORS 2011
Number of pages4
Publication statusPublished - 1 Dec 2011
Event10th IEEE SENSORS Conference 2011, SENSORS 2011 - Limerick, Ireland
Duration: 28 Oct 201131 Oct 2011

Publication series

NameProceedings of IEEE Sensors


Other10th IEEE SENSORS Conference 2011, SENSORS 2011


ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Mahmood, A., Chen, P. S., & George Akingba, A. (2011). Nanoelectrode arrays for measuring Sympathetic Nervous Activity. In IEEE Sensors 2011 Conference, SENSORS 2011 (pp. 1241-1244). [6127022] (Proceedings of IEEE Sensors).