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Electric field and Charged Molecules Mediated Self-Assembly for Electronic Devices

Published online by Cambridge University Press:  11 February 2011

Sang Woo Lee ,
Helen A. McNally  and
Rashid Bashir
Sang Woo Lee
Affiliation:
School of Electrical and Computer Engineering, Department of Biomedical Engineering, Purdue University, West Lafayette, IN. 47907.
Helen A. McNally
Affiliation:
School of Electrical and Computer Engineering, Department of Biomedical Engineering, Purdue University, West Lafayette, IN. 47907.
Rashid Bashir
Affiliation:
School of Electrical and Computer Engineering, Department of Biomedical Engineering, Purdue University, West Lafayette, IN. 47907.
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Abstract

In this paper we present techniques, utilizing dielectrophoresis and electrohydrodynamics, which can possibly be used for assembling devices suspended in a solution onto a binding site on a substrate. We explored the concepts using micro-scale negatively charged polystyrene beads and rectangular silicon blocks. Dielectrophoretic forces on devices in buffer solutions were examined as a function of frequency of the applied AC signal. The observed results can be explained by taking in account electro-thermal and AC electroosmotic effects. The study described in the paper can be used for placing and assembling micro and nano-electronic devices and objects at specific sites on various substrates, in combination with bio-inspired biological binding techniques such as DNA hybridization, antigen-antibody interactions, and ligand-receptor (avidin-biotin) interactions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 761: Symposia B/C/D/F/G/NN – Molecular Electronics , 2002 , C11.17
Copyright
Copyright © Materials Research Society 2003

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References

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