期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 51, 页码 28656-28664出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b10534
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资金
- National Natural Science Foundation of China [51473061]
- Fundamental Research Funds for the Central Universities [JCKY-QKJC05]
- JLU Cultivation Fund for the National Science Fund for Distinguished Young Scholars
A dynamic cross-linked supramolecular network of poly(glycidyl methacrylate)s derivative chains was constructed on mesoporous silica nanoparticles via disulfide bond and ion-dipole interactions between cucurbit[7]urils and protonated diamines in the polymer chains. This kind of multifunctional organic-inorganic hybrid material with pH- and glutathione- (GSH-) stimuli responsiveness can be applied to anticancer drug delivery and controlled release. Good release performance toward doxorubicin hydrochloride (DOX) was achieved under the simulative tumor intracellular environment (pH = 5.0, C-GSH = 2-10 mM). Significantly, the release amount of DOX increased upon lowering the solution pH value and increasing the concentration of GSH, as demonstrated by a series of controlled release experiments. Furthermore, the DOX-loaded hybrid nanomaterials displayed apparent cell-growth inhibition effects to cancer cell lines, as evidenced by MTT assay and confocal laser scanning microscopy.
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