Liquid Crystalline Peptide Nanowires

Authors

  • T. H. Han,

    1. Department of Materials Science and Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701 (Korea)
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  • J. Kim,

    1. National Creative Research Initiative Center for Time-Resolved Diffraction Department of Chemistry and School of Molecular Science (BK21), KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701 (Korea)
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  • J. S. Park,

    1. Department of Materials Science and Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701 (Korea)
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  • C. B. Park,

    1. Department of Materials Science and Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701 (Korea)
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  • H. Ihee,

    1. National Creative Research Initiative Center for Time-Resolved Diffraction Department of Chemistry and School of Molecular Science (BK21), KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701 (Korea)
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  • S. O. Kim

    1. Department of Materials Science and Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701 (Korea)
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  • We thank Dr C. M. Koo and Prof. D. G. Churchill for helpful discussions, and M. J. Woo for assisting with the powder diffractometer system. This work was supported by the Korea Research Foundation (KRF-2005-003-D00085), Creative Research Initiatives (Center for Time-Resolved Diffraction) of MOST/KOSEF, the second stage of the Brain Korea 21 Project, the Basic Research Program of the Korea Science &Engineering Foundation (R01-2005-000-10456-0), and the Korean Ministry of Science and Technology, the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Commerce, Industry and Energy, Korea. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

original image

The synthesis and liquid crystalline behavior of peptide nanowire is presented. An aromatic dipeptide rapidly assembles into robust one-dimensional nanowires having a large aspect ratio in a volatile organic solvent. The stable dispersion of rigid nanowires shows a colloidal nematic liquid crystalline phase over a broad concentration, which is particularly advantageous for fabricating well-aligned nanowire morphologies under an external field.

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