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)
Year published
2016
Metadata
Show full item recordAbstract
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). ...
View more >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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View more >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.
View less >
Journal Title
CrystEngComm
Volume
18
Issue
23
Subject
Inorganic chemistry
Physical chemistry
Materials engineering
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Crystallography
Chemistry