Fabrication and sustained release properties of porous hollow silica nanoparticles |
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| Authors: | XU HongTao WANG XinShou TAO LeiMing & WU SiXin Key Laboratory for Special Functional Materials of Ministry of Education Henan University Kaifeng China |
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| Institution: | XU HongTao,WANG XinShou,TAO LeiMing & WU SiXin Key Laboratory for Special Functional Materials of Ministry of Education,Henan University,Kaifeng 475004,China |
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| Abstract: | MCM-41-type mesoporous silica nanospheres(MSN) have been prepared using n-cetyltrimethylammonium bromide(CTAB) as a soft template.The pseudo-moire' rotational pattern inside the MSN results in many interior defects.Hollow mesoporous silica(HMS) spheres were synthesized by solvent extraction of the template from MSN.The morphology and structure of MSN and HMS were studied by TEM,XRD and nitrogen sorption techniques.A model drug,bromocresol green dye,was packed inside different regions of HMS through impregna... |
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| Keywords: | pseudo-moire' rotational pattern hollow silica release |
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