Synthesis of stable hybrid silica-lipid cylinders with nanoscale helical ripples

    Authors

    Y. Zhao; J. Liu; Y. Sohn;J. Y. Fang

    Comments

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    Abbreviated Journal Title

    J. Phys. Chem. C

    Keywords

    TUBULES; NANOTUBES; MICROSTRUCTURES; TEMPLATES; BILAYERS; MODEL; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, ; Multidisciplinary

    Abstract

    Self-assembled cylindrical lipid tubules have attracted attention as templates for synthesizing hybrid organic-inorganic materials. Here we report the synthesis of hybrid silica-lipid cylinders by sol-gel condensation of tetraethoxysilane (TEOS) on helical rippled tubules of 1,2-bis(tricosa-10,12-diynoyl)-sn-glycero-3-phosphocholine (DC8,9PC). Transmission electron microscopy reveals that the nanoscale helical ripples of the lipid tubules are transcripted to the templated silica films. On the other hand, the deposition of the silica films substantially improves the thermal stability of lipid tubules. We find that the crystalline ordering of lipid bilayer walls confined in the hybrid silica-lipid cylinders is stable up to 110 degrees C.

    Journal Title

    Journal of Physical Chemistry C

    Volume

    111

    Issue/Number

    17

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    6418

    Last Page

    6421

    WOS Identifier

    WOS:000245954900040

    ISSN

    1932-7447

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