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Sub-10 nm Gold Nanoarrays for Tethering Single Molecules

Published online by Cambridge University Press:  21 March 2011

Vanessa Z-H. Chan ,
Sarah L. Codd ,
Mark J. van der Helm ,
Joachim P. Spatz ,
Carlheinz Röcker ,
G. Ulrichs Nienhaus ,
Stefano Levi ,
Frank C. J. M. van Veggel ,
David N. Reinhoudt  and
Martin Möller
Vanessa Z-H. Chan
Affiliation:
Department of Organic and Macromolecular Chemistry, University of Ulm, OC3, Ulm D-89069, Germany
Sarah L. Codd
Affiliation:
Department of Organic and Macromolecular Chemistry, University of Ulm, OC3, Ulm D-89069, Germany
Mark J. van der Helm
Affiliation:
Department of Organic and Macromolecular Chemistry, University of Ulm, OC3, Ulm D-89069, Germany
Joachim P. Spatz
Affiliation:
Department of Organic and Macromolecular Chemistry, University of Ulm, OC3, Ulm D-89069, Germany
Carlheinz Röcker
Affiliation:
Department of Biophysics, AlbertEinstein Allee 11, University of Ulm, OC3, Ulm D-89069, Germany
G. Ulrichs Nienhaus
Affiliation:
Department of Biophysics, AlbertEinstein Allee 11, University of Ulm, OC3, Ulm D-89069, Germany
Stefano Levi
Affiliation:
Laboratory of Supramolecular Chemistry and Technology and MESA Research Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
Frank C. J. M. van Veggel
Affiliation:
Laboratory of Supramolecular Chemistry and Technology and MESA Research Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
David N. Reinhoudt
Affiliation:
Laboratory of Supramolecular Chemistry and Technology and MESA Research Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
Martin Möller
Affiliation:
Department of Organic and Macromolecular Chemistry, University of Ulm, OC3, Ulm D-89069, Germany
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Abstract

Nanometer sized gold patterns were produced with controlled spacings using the combination of a top-down (e-beam lithography) and a bottom-up (macromolecular chemistry) technique. Sub-10 nm nanoparticle arrays on silicon consisting of gold nano particles separated by micro meter spacings were fabricated with this approach. Using electron beam lithography, templates comprising of 150 nm to 1 μm sized trenches, holes and aperiodic patterns were made in an electron-beam resist. Block copolymer micelles were then patterned into this template by spincoating. The micelles acted as positioners for a nanometer sized gold precursor that is sequestered within its core. Subsequent removal of the resist layer left an array of Au loaded organic micelles ordered according to the pattern of the template. Exposure of this substrate to a hydrogen plasma removed the organic block copolymer and resulted in an array of sub-10 nm gold nanoparticles/nanoclusters with micron separations. The gold was then used as an anchor point for the tethering of functional molecules in order to localize fluorescent molecules.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 676: Symposium Y – Synthesis, Functional Properties and Applications of Nanostructures , 2001 , Y4.4
Copyright
Copyright © Materials Research Society 2001

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References

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