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Hyehyeon Kim, Saehee Kim, Chiyoung Park, Hyemi Lee, Heon Joo Park and Chulhee Kim Glutathione-Induced Intracellular Release of Guests from Mesoporous Silica Nanocontainers with Cyclodextrin Gatekeepers Advanced Materials 22

Article first published online: 27 AUG 2010 | DOI: 10.1002/adma.201001417

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Cyclodextrins tethered onto a mesoporous silica nanoparticle via disulfide stalking are effective gatekeepers not only to entrap guest molecules in the pore but also to release the guest in response to glutathione (GSH). The PEGylated nanocontainers also exhibit efficient GSH-mediated release of doxorubicin in cancer cells. Our approach offers unique applications for multifunctional delivery systems.

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