Tannin as a gatekeeper of pH-responsive mesoporous silica nanoparticles for drug delivery

文献类型: 外文期刊

第一作者: Hu, Chunlin

作者: Hu, Chunlin;Zheng, Zhen;Wang, Jing;Liu, Yuan;Wang, Xinling;Yu, Lingxue;Jiang, Yifeng;Tong, Guangzhi;Zhou, Yanjun

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期刊名称:RSC ADVANCES ( 影响因子:3.361; 五年影响因子:3.39 )

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收录情况: SCI

摘要: Tannin grafted on mesoporous silica nanoparticles (tannin-MSNs) was synthesized by the amidation reaction of carboxyl benzyl borate with amino group modified MSN. Tannin-MSNs were an MCM-41 type of mesoporous material with a uniform diameter of about 150 nm. The XRD and N-2 adsorption/desorption isotherm results demonstrated that the rhodamine was effectively loaded and the pores of MSN were blocked by tannin. Rhodamine as a model cargo was used to evaluate the loading and releasing behaviors of tannin-MSNs. The drug release rate of tannin-MSNs was pH dependent. An in vitro cellular cytotoxicity test indicated that tannin-MSNs were highly biocompatible and suitable to be used as drug carriers. The cellular uptake was investigated by confocal laser scan microscopy. The results showed that tannin-MSNs are promising platforms to construct a pH-responsive controlled drug delivery system for cancer and stomach therapy.

分类号: O6

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