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Rosette Nanotubes: Factors Affecting the Self-assembly of the Monobases Versus the Twin Base System

Published online by Cambridge University Press:  01 February 2011

Usha Hemraz  and
Hicham Fenniri
Usha Hemraz
Affiliation:
uhemraz@ualberta.ca, National Institute for Nanotechnology and University of Alberta, Department ofChemistry, 11421 Saskatchewan Drive, Edmonton, Alberta, T6G2M9, Canada, 780 641 1756
Hicham Fenniri
Affiliation:
hicham.fenniri@ualberta.ca, University of Alberta, National Institute for Nanotechnology, Chemistry Department, 11421 Saskatchewan Drive, Edmonton AB, T6G2M9, Canada
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Abstract

Rosette Nanotubes (RNTs) are formed by the self-assembly of a guanine-cytosine motif (GΛC), a hybrid of the DNA bases guanine and cytosine, to give a six membered macrocycle maintained by 18 H-bonds. In theory, any moiety covalently attached to the GΛC base can be expressed on the nanotubes surface. However we anticipate that the self-assembly and stability of these functionalised RNTs will also be governed by steric effects. Herein we describe the synthesis and the self assembly of the Twin Base Lysine (TBL-K) and its monobase (MBL-K). While TBL-K self-assembles readily in water and methanol to give nanotubular structures, MBL-K does not form nanotubes. Various techniques were used to characterize the RNTs and the factors, preventing self-assembly in the case of MBL-K, were investigated.

Keywords

self-assemblynanostructurechemical synthesis
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1057: Symposium II – Nanotubes and Related Nanostructures , 2007 , 1057-II05-37
Copyright
Copyright © Materials Research Society 2008

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References

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