Title

Assembly and disassembly of tubular spherulites

Authors

Authors

K. Tamhane; X. J. Zhang; J. H. Zou;J. Y. Fang

Comments

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Abbreviated Journal Title

Soft Matter

Keywords

BILE-ACIDS; AQUEOUS-SOLUTIONS; HELICAL RIBBONS; CHOLIC-ACID; GROWTH; DERIVATIVES; COMPLEXES; MOLECULES; CHIRALITY; CRYSTALS; Chemistry, Physical; Materials Science, Multidisciplinary; Physics, ; Multidisciplinary; Polymer Science

Abstract

We report a higher-order assembly of lithocholic acid (LCA) into spherulites composed of a large number of well-defined tubules in aqueous solution at physiological pH of 7.5. Under a polarizing optical microscope, the tubular spherulites show a Maltese-cross extinction pattern. The disassembly of tubular spherulites by brief sonication leads to the formation of a large quantity of well-dispersed straight tubules with a crystalline wall and a narrow diameter distribution. We find that the tubules, which are organized in spherulites and dispersed in solution, show a pH-switchable shape transition.

Journal Title

Soft Matter

Volume

6

Issue/Number

6

Publication Date

1-1-2010

Document Type

Article

DOI Link

http://dx.doi.org/10.1039/b915183d

Language

English

First Page

1224

Last Page

1228

WOS Identifier

WOS:000277833400018

ISSN

1744-683X

Recommended Citation

"Assembly and disassembly of tubular spherulites" (2010). Faculty Bibliography 2010s. 854.
https://stars.library.ucf.edu/facultybib2010/854