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[Langmuir] Ultrasound and Redox-Triggered Morphology Transitions of Supramolecular Self-assemblies with pH Responsiveness for Triple- Controlled Release
作者:Hao Yao, Tianfeng Yang, Jia He, Guowen Du, Xin Song, Yanmin Zhang,*, and Wei Tian,*
關(guān)鍵字:pH Responsiveness, Self-assemblies, Redox-Triggered
論文來源:期刊
具體來源:Langmuir 2019, 35, 8045-8051
發(fā)表時(shí)間:2019年

The realization of multistage-controlled drug delivery at the cell level through the morphology transitions of supramolecular self-assemblies (SSA) is still a challenge. Herein, successive morphology transitions of SSA with pH responsiveness were successfully achieved through the subsequent action of ultrasound and redox stimuli. Specifically, we first prepared noncovalently PEGylated spherical self-assemblies formed by host-guestconjugated amphiphilic β-CD dimers. The functionalized PEG could be associated/disassociated onto the spherical self-assemblies by adjusting pH values of solutions. They could reassemble into branched self-assemblies induced by ultrasonication. Such branched self-assemblies could be further dissociated into second spherical self-assemblies under a redox stimulus. This morphology transition process was used to conduct triple-controlled targeted drug delivery and release in cancer cells. This work will be beneficial for the design of smart SSA for controlled release in vivo.


全文鏈接:

https://pubs.acs.org/doi/10.1021/acs.langmuir.9b01153


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