Non-destructively shattered mesoporous silica for protein drug delivery.

Non-destructively shattered mesoporous silica for protein drug delivery.
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DOI:
10.1016/j.micromeso.2013.03.022
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发表时间:
2013-07-15
影响因子:
5.2
通讯作者:
Liu, Jun
Liu, Jun
中科院分区:
材料科学2区
文献类型:
--
作者:
Lei, Chenghong;Chen, Baowei;Li, Xiaolin;Qi, Wen;Liu, Jun

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介孔氧化硅已被广泛用于包埋小的化学分子和生物大分子用于药物递送。我们推测,生物大分子,如蛋白质在介孔二氧化硅的负载密度可能是有限的,由于在孔结构和长时间的扩散时间在孔道中的无序。我们粉碎介孔二氧化硅非破坏性地导致在水溶液中通过强大的超声处理,其中介孔结构仍然保持良好的改善的内介孔结构和减小的粒径。超声破碎的介孔二氧化硅可以将蛋白质负载密度增加到未破碎的介孔二氧化硅的近2.7倍,这表明蛋白质分子可以进入二氧化硅的显着更多的介孔空间,这可能导致更持续的蛋白质药物递送。
Mesoporous silicas have been extensively used for entrapping small chemical molecules and biomacromolecules for drug delivery. We hypothesize that the loading density of biomacromlecules such as proteins in mesoporous silicas could be limited due to disordering in the pore structure and long diffusion time in the pore channels. We shattered mesoporous silicas non-destructively resulting in improved intramesoporous structures and reduced particle sizes in aqueous solutions by a powerful sonication, where the mesoporous structures were still well maintained. The sonication-shattered mesoporous silica can increase the protein loading density to nearly 2.7 times as high as that of the non-shattered one, demonstrating that significantly more mesopore space of the silica could be accessible by the protein molecules, which may result in more sustained protein drug delivery.
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发表时间: 2010-01-14
期刊: The journal of physical chemistry. B
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