Mechanism of crystalline dicarboxamide microsphere self-assembly probed by in situ Raman microscopy and Raman imaging

    Authors

    H. Matsui; B. Gologan; H. Schaffer; F. Adar; D. Seconi;O. Phanstiel

    Comments

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    Abbreviated Journal Title

    Langmuir

    Keywords

    SUPRAMOLECULAR ASSEMBLIES; BOLAAMPHIPHILES; NANOTUBES; FLUID; Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, ; Multidisciplinary

    Abstract

    The microsphere formation mechanism of bis(N alpha-amido-L-phenylalanine) 1,1-cyclobutanedicarboxylate, whose self-assembly was triggered by protonation of its carboxylic groups, was investigated by Raman microscopy. An image of the Raman intensity contour map, Raman imaging, shows that water is excluded from the core during the L-phenylalanine dicarboxylate aggregation. In situ Raman microscopic studies on the size and morphological changes of microspheres indicates that osmotic pressure on the sphere, generated by water exclusion from the sphere's core, controls the final assembled structure and morphology.

    Journal Title

    Langmuir

    Volume

    16

    Issue/Number

    7

    Publication Date

    1-1-2000

    Document Type

    Article

    Language

    English

    First Page

    3148

    Last Page

    3153

    WOS Identifier

    WOS:000086225200027

    ISSN

    0743-7463

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