Gold nanoparticle wires made using RNA-based self-assembly

Cumming, D.R.S. et al. (2006) Gold nanoparticle wires made using RNA-based self-assembly. Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, 24(6), pp. 3196-3199. (doi:10.1116/1.2363404)

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Publisher's URL: http://dx.doi.org/10.1116/1.2363404

Abstract

Self-assembly or bottom-up techniques based on molecular recognition are attracting a great deal of interest for nanofabrication. One such technology is based on the use of self-assembling tecto-RNA that has been shown to be able to make structures with nanoscale features (<10 nm) over large areas of the order of several microns. The technique is extremely flexible in that different RNA designs can be used to create dramatically different patterns, and the technology has the potential to scale up so that it might be used to pattern whole chips, or even wafers. In a step towards using molecular recognition techniques to build devices such as electronic circuits or sensors it is necessary to be able to add device structures or link functional units together. The authors show that the tecto-RNA method can be extended to attach gold nanoparticles using DNA linkers. The self-assembling properties of the RNA can in turn be used to link together the gold nanoparticles to form wires and clusters in a Mg<sup>2+</sup>-ion controlled, as opposed to electrostatically aggregated, process. Using this method they have fabricated a gold nanoparticle wire between two nanoelectrodes and evaluated the electrical properties of the resultant device.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cumming, Professor David and Cooper, Professor Jonathan and Glidle, Dr Andrew
Authors: Cumming, D.R.S., Bates, A.D., Callen, B.P., Cooper, J.M., Cosstick, R., Geary, C., Glidle, A., Jaeger, L., Pearson, J.L., Proupin-Perez, M., and Xu, C.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
ISSN:1071-1023

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