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Construction of Helical Nanofibers from Self-Assembling Pseudopeptide Building Blocks: Modulating the Handedness and Breaking the Helicity

Guha, S., Drew, M. G. B. and Banerjee, A. (2008) Construction of Helical Nanofibers from Self-Assembling Pseudopeptide Building Blocks: Modulating the Handedness and Breaking the Helicity. Small, 4 (11). pp. 1993-2005. ISSN 1613-6810

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To link to this item DOI: 10.1002/smll.200800002

Abstract/Summary

Helical nanofibers are successfully constructed from suitable self-assembling pseudopeptide-based molecular building blocks. The handedness of these nanofibers can be reversed by using mirror-imaged pseudopeptide-based building blocks. Straight nanofibers are also constructed by modulating the molecular and supramolecular structures by the proper choice of the stereochemical nature of the molecular scaffolds. This study demonstrates that molecular structure and chirality are not the only determining factors for tuning the morphology and chirality of nanostructures; the nature of the supramolecular structures formed from the corresponding molecular scaffolds also plays a key role in dictating the shape and chirality of nanostructures. Helical nanofibers are suitable templates for fabricating dipeptide-capped gold nanoparticles, indicating a possible use of these nanofibers in the construction of arrays of gold nanoparticles.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11294
Uncontrolled Keywords:gold nanoparticles, helical structures, nanofibers, pseudopeptides, self-assembly, PEPTIDE AMPHIPHILE NANOFIBERS, BETA-SHEET PEPTIDES, DIPEPTIDE, NANOTUBES, METAL NANOPARTICLES, NANOSTRUCTURES, CHIRALITY, RIBBONS, NANOMATERIALS, MOLECULES, POLYMERS

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