| 초록 |
Supramolecular chemistry is a powerful methodology for the construction of various molecular devices such as molecular shuttles, molecular motors, and nanovalves. Herein we reported a versatile pH-responsive supramolecular nanovalve designed by using mesoporous organosilica hollow nanospheres as nanocontainers. The monodisperse hollow nanospheres have been successfully prepared by using polystyrene latex and cetyltrimethylammonium bromide surfactant as the co-template. The nanovalve is capable of operating in aqueous media and storing guest molecules such as rhodamine B within the hollow core and mesopore shell and releasing them on demand by acid/base triggering of the capping molecules including β-cyclodextrin, dibenzo-24-crown-8, and cucurbit[6]uril, demonstrating a smart vehicle for controlled release. |
