Effect of amine functionalization of SBA-15 on controlled baicalin drug release
CERAMICS INTERNATIONAL(2012)
Abstract
In this paper, we present the release of baicalin from hexagonal periodic mesoporous silica SBA-15 and amino-functionalized mesoporous SBA-15 (A-SBA-15), which serve as drug delivery systems (SBA-15/baicalin and A-SBA-15/baicalin). The modified and drug loaded mesoporous materials were characterized by XRD, SEM, TEM, N-2 physisorption, IR, TG and HPLC. The results demonstrated that slightly higher amount of baicalin was loaded in APS-SBA-15, and the dissolution rate of baicalin from the A-SBA-15/baicalin was much faster than from the SBA-15/baicalin. A-SBA-15/baicalin as baicalin delivery system was better than SBA-15/baicalin because the faster dissolution rate compared with SBA-15/baicalin was more conducive to drug absorption. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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Key words
Sol-gel processes,SiO2,Functional applications,Biomedical applications
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