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Mineralization of magnetic nano-tape in self-organized nanospace composed of nucleopeptides and peptides

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Abstract

Self-organization based on specific interactions has been actively studied for the formation of highly ordered and hierarchical structures on the molecular scale. We designed and synthesized a nucleopeptide, Ac-VEVS(g(GC)3)(VE)7-CONH2, having a nucleotide graft-chain in a peptide main-chain, and a spacer peptide acting as a template for ferric oxide mineralization. The synthesized nucleopeptide and spacer peptide mixture formed a self-organized assembly having a nanospace owing to the complementary base pairing between the nucleotide graft-chains of the nucleopeptides and intermolecular hydrogen-bonding between the peptide chains on the substrates. In this study, we report the selective mineralization of magnetite in the nanospace which acted as a reaction field. Mineralized magnetite formed an oriented nano-tape, whose morphology was similar to that of the template nanosheet. This implies that the nanospace in the ordered nanosheet formed by self-organization processes of the nucleopeptide and spacer peptide is extremely useful as a reaction field for the mineralization of structure-controlled magnetite.

Graphical abstract: Mineralization of magnetic nano-tape in self-organized nanospace composed of nucleopeptides and peptides

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Publication details

The article was received on 29 Jan 2019, accepted on 24 Apr 2019 and first published on 25 Apr 2019


Article type: Paper
DOI: 10.1039/C9CE00146H
CrystEngComm, 2019, Advance Article

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    Mineralization of magnetic nano-tape in self-organized nanospace composed of nucleopeptides and peptides

    K. Murai, K. Inagaki, C. Hiraoka, S. Minoshima, T. Kinoshita, K. Nagata and M. Higuchi, CrystEngComm, 2019, Advance Article , DOI: 10.1039/C9CE00146H

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