Title :
Electrical characterization of a pig odorant binding protein by Impedance Spectroscopy
Author :
Capone, S. ; De Pascali, C. ; Francioso, L. ; Siciliano, P. ; Persaud, K.C. ; Pisanelli, A.M.
Author_Institution :
Inst. for Microelectron. & Microsyst., CNR, Lecce, Italy
Abstract :
In this work, an ab-initio study of the electrical response to odorants of a self-assembled monolayer of a pig OBP immobilized onto a miniaturized Si-substrate equipped with gold interdigitated electrodes (IDE), was started. Electrical impedance spectroscopy (EIS) was used as electrical characterization technique and a dedicated experimental set-up was arranged in order to carry out EIS measurements in controlled environment. The EIS data was fitted by using a fitting software based on Levenberg-Marquardt (LEVM) algorithm to determine the equivalent circuit of the system.
Keywords :
ab initio calculations; biological techniques; chemioception; curve fitting; electrochemical analysis; electrochemical electrodes; electrochemical impedance spectroscopy; equivalent circuits; gold; molecular biophysics; monolayers; proteins; self-assembly; Au; EIS; Levenberg-Marquardt algorithm; Si; ab-initio study; electrical impedance spectroscopy; electrical response; equivalent circuit; gold interdigitated electrodes; miniaturised silicon substrate; pig OBP electrical characterization; pig OBP self assembled monolayer; pig odorant binding protein; Animals; Biomimetics; Electrochemical impedance spectroscopy; Electrodes; Gas detectors; Gold; Insects; Microelectronics; Olfactory; Proteins;
Conference_Titel :
Sensors, 2009 IEEE
Conference_Location :
Christchurch
Print_ISBN :
978-1-4244-4548-6
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2009.5398471
