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Yu-Long Sun, Dr. Bing-Jie Yang, Dr. Sean Xiao-An Zhang and Prof. Ying-Wei Yang Cucurbit[7]uril Pseudorotaxane-Based Photoresponsive Supramolecular Nanovalve Chemistry - A European Journal 18

Article first published online: 20 JUN 2012 | DOI: 10.1002/chem.201201083

Thumbnail image of graphical abstract

Light relief! Mesoporous silica materials equipped with photoresponsive cucurbit[7]uril-pseudorotaxane nanovalves operate in biological media to trap cargo molecules within nanopores, but undergo controlled release when irradiated with light of a suitable wavelength (see figure). Significantly, a “ladder”-release pattern is obtained to balance maximal therapeutic efficacy and minimal dose frequency in the development of “pulsed” drug therapy.

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