Photo-tunable morphologies of β-cyclodextrin-threaded inclusion complexes containing a terminal cholesteryl group

Wen Tzu Liu, Norimitsu Tohnai, Ichiro Hisaki, Mikiji Miyata, Dolok Steven, Yi Hong Chiu, Jui-Hsiang Liu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The threading of cyclodextrin (CD) to convert from intramolecular to intermolecular hydrogen bonding leads to the self-assembly of an inclusion complex (IC). A chiral cholesteryl-E-4-(11-acryloxy-undecaloxy)-cinnamate (CAUC) monomer containing a photoisomerizable C C bond and a cholesteryl terminal group was synthesized andthreaded with β-CD to form an inclusion complex. The synthesized IC forms a rod-like construction because of the enhanced intermolecular hydrogen bonding. After UV irradiation, the self-assembled rod structure changed to a spherical structure because of the change in the molecular polarity and intermolecular forces. The bent structure of Z-CAUC may release some of the threaded CDs and lead to a decrease in intermolecular forces. Due to a high energy barrier, the E-Z configurational photoisomerization of CAUC is irreversible.

Original languageEnglish
Pages (from-to)1031-1038
Number of pages8
JournalScience of Advanced Materials
Volume4
Issue number10
DOIs
Publication statusPublished - 2012 Oct 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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