AC Dielectrophoresis Using Elliptic Electrode Geometry

AC Dielectrophoresis Using Elliptic Electrode Geometry

This paper presents negative AC dielectrophoretic investigations using elliptic electrode geometry. Simulations of the electric field gradient variation using various ratios of the semimajor and the semiminor axis were carried out to determine the optimum elliptic geometry for the dielectrophoretic...

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Main Authors: S. M. Rezaul Hasan, Aanan Khurma
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:Journal of Sensors
Online Access:http://dx.doi.org/10.1155/2011/204767
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spelling doaj-5bd23508df1e4b9ebcc03a8d364fb2732020-11-24T21:42:16ZengHindawi LimitedJournal of Sensors1687-725X1687-72682011-01-01201110.1155/2011/204767204767AC Dielectrophoresis Using Elliptic Electrode GeometryS. M. Rezaul Hasan0Aanan Khurma1Center for Research in Analog and VLSI Microsystem Design (CRAVE), School of Engineering and Advanced Technology (SEAT), Massey University, Albany, Auckland 0632, New ZealandCenter for Research in Analog and VLSI Microsystem Design (CRAVE), School of Engineering and Advanced Technology (SEAT), Massey University, Albany, Auckland 0632, New ZealandThis paper presents negative AC dielectrophoretic investigations using elliptic electrode geometry. Simulations of the electric field gradient variation using various ratios of the semimajor and the semiminor axis were carried out to determine the optimum elliptic geometry for the dielectrophoretic electrokinetics of specimen in an assay with laminar (low Reynolds number) fluid flow. Experimental setup of the elliptic electrode assembly using PCB fabrication and electrokinetic accumulation of specimen in a dielectrophoretic cage is also being reported. Using an actuating signal between 1 kHz and 1 MHz, successful trapping of 45 μm polystyrene beads suspended in distilled water was demonstrated due to negative dielectrophoresis near 100 kHz using the novel elliptic electrode.http://dx.doi.org/10.1155/2011/204767
collection DOAJ
language English
format Article
sources DOAJ
author S. M. Rezaul Hasan
Aanan Khurma
spellingShingle S. M. Rezaul Hasan
Aanan Khurma
AC Dielectrophoresis Using Elliptic Electrode Geometry
Journal of Sensors
author_facet S. M. Rezaul Hasan
Aanan Khurma
author_sort S. M. Rezaul Hasan
title AC Dielectrophoresis Using Elliptic Electrode Geometry
title_short AC Dielectrophoresis Using Elliptic Electrode Geometry
title_full AC Dielectrophoresis Using Elliptic Electrode Geometry
title_fullStr AC Dielectrophoresis Using Elliptic Electrode Geometry
title_full_unstemmed AC Dielectrophoresis Using Elliptic Electrode Geometry
title_sort ac dielectrophoresis using elliptic electrode geometry
publisher Hindawi Limited
series Journal of Sensors
issn 1687-725X
1687-7268
publishDate 2011-01-01
description This paper presents negative AC dielectrophoretic investigations using elliptic electrode geometry. Simulations of the electric field gradient variation using various ratios of the semimajor and the semiminor axis were carried out to determine the optimum elliptic geometry for the dielectrophoretic electrokinetics of specimen in an assay with laminar (low Reynolds number) fluid flow. Experimental setup of the elliptic electrode assembly using PCB fabrication and electrokinetic accumulation of specimen in a dielectrophoretic cage is also being reported. Using an actuating signal between 1 kHz and 1 MHz, successful trapping of 45 μm polystyrene beads suspended in distilled water was demonstrated due to negative dielectrophoresis near 100 kHz using the novel elliptic electrode.
url http://dx.doi.org/10.1155/2011/204767
work_keys_str_mv AT smrezaulhasan acdielectrophoresisusingellipticelectrodegeometry
AT aanankhurma acdielectrophoresisusingellipticelectrodegeometry
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