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A General pH-Responsive Supramolecular Nanovalve Based on Mesoporous Organosilica Hollow Nanospheres

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Abstract

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Smart release on demand: A general pH-responsive supramolecular nanovalve operating in aqueous media has been designed by using mesoporous organosilica hollow nanospheres as nanocontainers (see picture). The nanovalve is capable of storing guest molecules within the hollow core and mesopore shell and releasing them on demand by acid/base triggering of the capping molecule, demonstrating a delicate vehicle for controlled release.

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