By Topic

High sensitivity potentiostat system for sub-micron bio-sensors impedance measurements

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Carminati, M. ; Dipt. di Elettron. e Inf., Politec. di Milano, Milano ; Ferrari, G. ; Sampietro, M.

The design and experimental characterization of a potentiostat system based on a novel modular architecture are illustrated. This instrument enables three amperometric measurements in liquid (cyclic voltammetry, electrochemical impedance spectroscopy and impedance tracking in time domain) on interfacial systems whose dimensions can range from the millimeter down to the sub-micrometric scale. In particular the system is aimed at the realization of biosensors based on the impedimetric detection of conformational changes of macromolecular biochemical transducers. To achieve high resolution (attoFarad in capacitance and TeraOhm in resistance) over a wide bandwidth (DC - 1 MHz) an integrator/differentiator front-end has been designed along with all the analog circuitry and software for numerical processing of acquired data.

Published in:

Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on

Date of Conference:

Aug. 31 2008-Sept. 3 2008