Periodic square-like gold nanoparticle arrays templated by self-assembled 2D DNA Nanogrids on a surface

Junping Zhang; Yan Liu; Yonggang Ke; Hao Yan

doi:10.1021/nl052210l

Periodic square-like gold nanoparticle arrays templated by self-assembled 2D DNA Nanogrids on a surface

Nano Lett. 2006 Feb;6(2):248-51. doi: 10.1021/nl052210l.

Authors

Junping Zhang¹, Yan Liu, Yonggang Ke, Hao Yan

Affiliation

¹ Department of Chemistry and Biochemistry & The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA.

PMID: 16464044
DOI: 10.1021/nl052210l

Abstract

We report the use of a self-assembled two-dimensional (2D) DNA nanogrid as a template to organize 5-nm gold nanoparticles (Au NPs) into periodic square lattices. Each particle sits on only a single DNA tile. The center-to-center interparticle spacing between neighboring particles is controlled to be approximately 38 nm. These evenly distributed Au NP arrangements with accurate control of interparticle spacing may find applications in nanoelectronic and nanophotonic devices.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

DNA / chemistry*
Gold / chemistry*
Microscopy, Atomic Force / methods
Nanostructures / chemistry*
Particle Size
Sensitivity and Specificity
Surface Properties

Substances

Gold
DNA