Derivation and Numerical Verification of a Compact Analytical Model for the AC Admittance Response of Nanoelectrodes, Suitable for the Analysis and Optimization of Impedance Biosensors

Pittino, Federico; Scarbolo, Paolo; Widdershoven, Frans; Selmi, Luca

doi:10.1109/TNANO.2015.2434106

This paper presents a compact analytical model for the AC response of nanoelectrode-based impedimetric biosensors to dielectric nanoparticles suspended in the electrolyte. The model highlights the functional dependence of the impedance change on the nanoparticle and the system geometrical and physical parameters. The model is carefully verified by means of 2-D simulations carried out with an ad hoc numerical solver of the Poisson–Nernst–Planck (Poisson-Drift-Diffusion) equations. The results can be useful to determine optimum detection conditions for impedimetric nanobiosensors, and to interpret experimental results.

Data di pubblicazione:	2015
Titolo:	Derivation and Numerical Verification of a Compact Analytical Model for the AC Admittance Response of Nanoelectrodes, Suitable for the Analysis and Optimization of Impedance Biosensors
Autore/i:	Pittino, Federico; Scarbolo, Paolo; Widdershoven, Frans; Selmi, Luca
Autore/i UNIMORE:	Pittino, Federico SCARBOLO, Paolo Widdershoven, Frans SELMI, LUCA mostra contributor esterni nascondi contributor esterni
Digital Object Identifier (DOI):	http://dx.doi.org/10.1109/TNANO.2015.2434106
Rivista:	IEEE TRANSACTIONS ON NANOTECHNOLOGY
Volume:	14
Fascicolo:	4
Pagina iniziale:	709
Pagina finale:	716
Codice identificativo ISI:	WOS:000357821500019
Codice identificativo Scopus:	2-s2.0-84960476860
Citazione:	Derivation and Numerical Verification of a Compact Analytical Model for the AC Admittance Response of Nanoelectrodes, Suitable for the Analysis and Optimization of Impedance Biosensors / Pittino, Federico; Scarbolo, Paolo; Widdershoven, Frans; Selmi, Luca. - In: IEEE TRANSACTIONS ON NANOTECHNOLOGY. - ISSN 1536-125X. - STAMPA. - 14:4(2015), pp. 709-716.
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http://hdl.handle.net/11380/1162898

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