Issue 23, 2019

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

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

Supplementary files

Article information

Article type
Paper
Submitted
29 Jan 2019
Accepted
24 Apr 2019
First published
25 Apr 2019

CrystEngComm, 2019,21, 3557-3567

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, 21, 3557 DOI: 10.1039/C9CE00146H

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