Analysis of Dielectric Microbead Detection by Impedance Spectroscopy with Nanoribbons

We present a quantitative numerical analysis of dielectric microbead detection experiments with nanoribbons operated in the AC small signal regime. To this purpose, a comprehensive model of nanoribbon operation in electrolyte environment and with DC/AC signals is extended to include the effect of site-binding charges in DC, transient and AC conditions. The model is calibrated against DC measurements and pH-transients data from the literature. The impact of the microfluidic chamber size, the interconnects and the site-binding charge is investigated. The calibrated model suggests that the impedance response to micron-sized beads cannot be explained without also taking into account the bead surface charge.


Published in:
2016 Ieee 16Th International Conference On Nanotechnology (Ieee-Nano), 947-950
Presented at:
16th IEEE International Conference on Nanotechnology (IEEE-NANO), IEEE Nanotechnol Council, Sendai, JAPAN, AUG 22-25, 2016
Year:
2016
Publisher:
New York, Ieee
ISBN:
978-1-5090-1493-4
Laboratories:




 Record created 2017-02-17, last modified 2018-03-17


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