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We have successfully developed PEOlated polymeric micelle/silica as multifunctional nanocapsules of much enhanced fluorescence for bioimaging and controlled delivery.Bioimaging contrast agents,such as fluorescent conjugated polymers,CdSe/CdS/ZnS quantum dots(QDs),and Fe3O4 nanocrystals have been successfully encapsulated into poly(ethylene oxide)(PEO)-based polymeric micelle/silica dual layers via interfacial templating condensation.