Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 375, Issue 1-3, Pages 87-96Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2010.11.067
Keywords
Vesicles; pH-responsive; Cyclodextrin; Anthraquinone; Inclusion complex; Cell staining
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Funding
- NSFC [20625307]
- National Basic Research Program of China (973 Program) [2009CB930103]
- Graduate Independent Innovation Foundation of Shandong University (GIIFSDU) [yzc09057]
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Aggregates assembled by supramolecular amphiphilies are more promising in developing responsive materials. First pH-reversible vesicles based on supramolecular amphiphilies were prepared from the supramolecular inclusion of cyclodextrins (CDs) and anthraquinone derivate (14(3-(dimethylamino)propyl)amino)anthracene-9,10-dione. 1). 1, as the guest molecule, was synthesized by the direct reaction of 1-nitroanthraquinone with N-1,N-1-dimethylpropane-1,3-diamine. The vesicles were characterized in detail by transmission electron microscopy (TEM), scanning electron microscopy (SEM), dynamic light scattering (DLS), and epi fluorescence microscope (EFM). H-1 NMR, 2D NMR ROESY, UV-vis spectrum, and FT-IR were further employed to study the formation mechanism of the vesicles. The vesicles' responsive property, especially the pH-responsive property was tested. We also tried to use the vesicle system as a new kind of fluorescence staining material for living cells and mouse prostate carcinoma cells (RM-1) were found to be stained effectively by the vesicles. Our research may provide new references in exploiting novel intelligence materials and biomaterials. (C) 2010 Elsevier B.V. All rights reserved.
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