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  • A facile biliquid-interface co-assembly synthesis of mesoporous vesicles with large pore sizes

    Author(s)
    Zhang, Yu
    Yue, Qin
    Jiang, Yongjian
    Luo, Wei
    Elzatahry, Ahmed A
    Alghamdi, Abdulaziz
    Deng, Yonghui
    Zhao, Dongyuan
    Griffith University Author(s)
    Zhao, Dongyuan
    Year published
    2016
    Metadata
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    Abstract
    In this study, novel mesoporous siliceous vesicles with ultrathin walls (50 nm in thickness) and large cavities were synthesized through a facile biliquid-interface co-assembly method by using cetyltrimethylammonium bromide as a structure-directing agent and tetraethoxysilane as a silica source. Various synthesis parameters (stirring rate, ionic strength, reaction temperature) have been investigated and were found to affect the interface co-assembly process. The obtained vesicles are highly water-dispersible and have large mesopores (6.7 nm) in the walls, high surface area (902 m2 g-1) and large pore volume (1.57 cm3 g-1). ...
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    In this study, novel mesoporous siliceous vesicles with ultrathin walls (50 nm in thickness) and large cavities were synthesized through a facile biliquid-interface co-assembly method by using cetyltrimethylammonium bromide as a structure-directing agent and tetraethoxysilane as a silica source. Various synthesis parameters (stirring rate, ionic strength, reaction temperature) have been investigated and were found to affect the interface co-assembly process. The obtained vesicles are highly water-dispersible and have large mesopores (6.7 nm) in the walls, high surface area (902 m2 g-1) and large pore volume (1.57 cm3 g-1). Cytotoxicity experiments and cellular uptake studies based on fluorescence imaging indicate that the obtained vesicles possess excellent biocompatibility and can be readily internalized by Pan02 cells due to their good water dispersibility and affinity to cell membranes. The outstanding properties of the obtained mesoporous silica vesicles make them good candidates for various bio-applications, such as drug delivery and enzyme immobilization.
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    Journal Title
    CrystEngComm
    Volume
    18
    Issue
    23
    DOI
    https://doi.org/10.1039/c5ce02592c
    Subject
    Inorganic chemistry
    Physical chemistry
    Materials engineering
    Science & Technology
    Physical Sciences
    Chemistry, Multidisciplinary
    Crystallography
    Chemistry
    Publication URI
    http://hdl.handle.net/10072/408156
    Collection
    • Journal articles

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