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Linear and nonlinear impedance spect...

Peck, John R.

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Linear and nonlinear impedance spectroscopy for the study of electrode/solution interfaces.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Linear and nonlinear impedance spectroscopy for the study of electrode/solution interfaces./
Author:	Peck, John R.
Description:	120 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1921.
Contained By:	Dissertation Abstracts International65-04B.
Subject:	Physics, Condensed Matter. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3128139
ISBN:	0496754025

Linear and nonlinear impedance spectroscopy for the study of electrode/solution interfaces.
Peck, John R.

Linear and nonlinear impedance spectroscopy for the study of electrode/solution interfaces. - 120 p.

Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1921.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2004.

We develop and demonstrate techniques to produce stable, electrically nonlinear conditions at electrode/solution interfaces in the absence of charge-transfer (faradaic) reactions for application to electrochemical biosensors. We introduce random-pulse AC voltammetry for the study of interfacial nonlinearities, and apply the technique to studies of pH-active self-assembled monolayers (SAMs). These studies show that interfacial nonlinearities can be an order of magnitude more sensitive to the charge state of the surface than its linear properties. Furthermore, the use of these nonlinearities will allow isolation of the interface from a linear background due to fixture or equipment parasitics---a background that becomes severe as electrode sizes shrink for microarray applications. We make arguments for the use of radio frequencies in these systems, and present techniques to extend the use of conventional electrochemical equipment to these frequencies. Finally, we simulate the use of a slot antenna resonator for the detection of DNA hybridization at GHz frequencies, and find that shifts in the system resonances upon hybridization should be easily seen if the high frequency fields are confined to the surface region.

ISBN: 0496754025Subjects--Topical Terms:

1018743
Physics, Condensed Matter.

Linear and nonlinear impedance spectroscopy for the study of electrode/solution interfaces.
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020 $a 0496754025
035 $a (UnM)AAI3128139
035 $a AAI3128139
040 $a UnM $c UnM
100 1 $a Peck, John R. $3 1935595
245 1 0 $a Linear and nonlinear impedance spectroscopy for the study of electrode/solution interfaces.
300 $a 120 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1921.
500 $a Supervisor: Mark A. Eriksson.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 2004.
520 $a We develop and demonstrate techniques to produce stable, electrically nonlinear conditions at electrode/solution interfaces in the absence of charge-transfer (faradaic) reactions for application to electrochemical biosensors. We introduce random-pulse AC voltammetry for the study of interfacial nonlinearities, and apply the technique to studies of pH-active self-assembled monolayers (SAMs). These studies show that interfacial nonlinearities can be an order of magnitude more sensitive to the charge state of the surface than its linear properties. Furthermore, the use of these nonlinearities will allow isolation of the interface from a linear background due to fixture or equipment parasitics---a background that becomes severe as electrode sizes shrink for microarray applications. We make arguments for the use of radio frequencies in these systems, and present techniques to extend the use of conventional electrochemical equipment to these frequencies. Finally, we simulate the use of a slot antenna resonator for the detection of DNA hybridization at GHz frequencies, and find that shifts in the system resonances upon hybridization should be easily seen if the high frequency fields are confined to the surface region.
590 $a School code: 0262.
650 4 $a Physics, Condensed Matter. $3 1018743
650 4 $a Chemistry, Analytical. $3 586156
650 4 $a Engineering, Electronics and Electrical. $3 626636
690 $a 0611
690 $a 0486
690 $a 0544
710 2 0 $a The University of Wisconsin - Madison. $3 626640
773 0 $t Dissertation Abstracts International $g 65-04B.
790 1 0 $a Eriksson, Mark A., $e advisor
790 $a 0262
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3128139