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Electrostatically Directed Assembly of Silver Nanoparticles for Application to Metal Enhanced Fluorescence Biosensing

Published online by Cambridge University Press:  01 February 2011

De-Hao Tsai ,
Shy-Hauh Guo ,
Ray J Phaneuf  and
Michael R. Zachariah
De-Hao Tsai
Affiliation:
[email protected], UMD/NIST, ME/PMD, 100 Bureau Drive, Bldg 221 Rm B357, Gaithersburg, MD, 20899, United States, 301-975-5212
Shy-Hauh Guo
Affiliation:
[email protected], Univeristy of Maryland, Department of Materials Science and Engineering, College Park, MD, 20740, United States
Ray J Phaneuf
Affiliation:
[email protected], Univeristy of Maryland, Department of Materials Science and Engineering, College Park, MD, 20740, United States
Michael R. Zachariah
Affiliation:
[email protected], University of Maryland, Departments of Mechanical Engineering and Department of Chemistry and Biochemistry, College Park, MD, 20740, United States
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Abstract

In this paper we demonstrate a gas-phase process to fabricate Ag nanoparticles-based bio-sensing devices. Ag nanoparticles, prepared from the gas phase through spray pyrolysis, are size-selected via electrostatic classification. These size-selected nanoparticles are then successfully attracted and aligned onto an electrostatic-patterned biased P-N junction substrate to form high- resolution nanoparticle patterns. Particles in the size range of 30-100 nm were evaluated. Our approach provides a promising tool for precise assembly of nanoparticles for future device applications.

Keywords

self-assemblynanostructureAg
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 951: Symposium E – Nanofunctional Materials, Nanostructures and Novel Devices for Biological and Chemical Detection , 2006 , 0951-E12-02
Copyright
Copyright © Materials Research Society 2007

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References

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