Abstract
Microneedle array electrodes for EEG significantly reduce the mounting time, particularly by circumvention of the need for skin preparation by scrubbing. We designed a new replication process for numerous types of microneedle arrays. Here, polymer microneedle array electrodes with 64 microneedles, in a nested 4×4 array, positioned on a circular disk of 10 mm diameter were fabricated and characterized. Needles have a length of 320 μm with a diameter of 100 μm. The DC-resistance of Ag-coated microneedle array electrodes on the skin is of the order of 150 kΩ. Using electrolyte gel this value decreases at least by a factor of 10. The pilot measurements on a healthy volunteer show excellent signal-to-noise ratios. According to conventional electrodes also Ag/AgCl instead of Ag only was used to coat the microneedle array. Both coatings, either with or without gel, certified for EEG recordings.
Keywords
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Griss, P., Enoksson, P., Tolvanen-Laakso, H., Merilainen, P., Ollmar, S., Stemme, G. Micromachined electrodes for biopotential measurements. Journal of Microelectromechanical Systems, 2001, 10, 10–16.
Griss, P., Tolvanen-Laakso, H. K., Merilainen, P., Stemme, G. Characterization of micromachined spiked biopotential electrodes. IEEE Trans Biomed Eng, Jun 2002, 49(6), 597–604.
Matteucci, M., Carabalona, R., and E. Di Fabricio, M. C., Gramatica, F., Rienzo, M. D., Snidero, E., Gavioli, L., Sancrotti, M. Micropatterned dry electrodes for brain-computer interface. Microelectronic Engineering, 2007, 84, 1737–1740.
Luttge, R., Berenschot, E., de Boer MJ et al., M. Integrated lithographic molding for microneedle-based devices. Journal of Microelectromechanical Systems, 2007, 16(4), 872–884.
Bystrova, S., Luttge, R., van den Berg., A. Study of crack formation in high-aspect ratio SU-8 structures on silicon. Microelectronic Engineering, 2007, 84(5–8), 1113–1116.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Luttge, R., Bystrova, S.N., van Putten, M.J.A.M. (2009). Microneedle array electrode for human EEG recording. In: Vander Sloten, J., Verdonck, P., Nyssen, M., Haueisen, J. (eds) 4th European Conference of the International Federation for Medical and Biological Engineering. IFMBE Proceedings, vol 22. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-89208-3_297
Download citation
DOI: https://doi.org/10.1007/978-3-540-89208-3_297
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-89207-6
Online ISBN: 978-3-540-89208-3
eBook Packages: EngineeringEngineering (R0)