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Issue 26, 2018
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Controllable synthesis of hollow periodic mesoporous organosilica spheres with radial mesochannels and their degradable behavior

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Abstract

Hollow periodic mesoporous organosilica spheres (HPMOSs) have some important special applications owing to their unique properties, but current syntheses usually involve various template methods that are time-consuming. Herein, we report a highly efficient and controllable synthesis of HPMOSs with radial mesochannels, only through introducing a pre-hydrolysis process to the commercially available bissilylated organosilanes (R′O)3Si–R–Si(OR′)3 with CTAB. The HPMOSs are robust with a mean diameter as small as 45 nm and a shell thickness as thin as 14 nm. A cytotoxicity assay indicates that the obtained HPMOSs possess good biocompatibility, and the HPMOSs with thioether groups are degradable under a 10 mM glutathione microenvironment. The amphiphilic organosilica precursors derived from the pre-hydrolysis process, CTAB micelles, and ethanol contribute to the formation of the HPMOSs.

Graphical abstract: Controllable synthesis of hollow periodic mesoporous organosilica spheres with radial mesochannels and their degradable behavior

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Publication details

The article was received on 20 Mar 2018, accepted on 24 May 2018 and first published on 30 May 2018


Article type: Paper
DOI: 10.1039/C8TA02569J
Citation: J. Mater. Chem. A, 2018,6, 12323-12333

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    Controllable synthesis of hollow periodic mesoporous organosilica spheres with radial mesochannels and their degradable behavior

    Y. Sun, M. Chen and L. Wu, J. Mater. Chem. A, 2018, 6, 12323
    DOI: 10.1039/C8TA02569J

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