The protein shell of apoferritin-encapsulated maghemite nanoparticles was functionalized with two different red-emitting perylenediimide fluorophores (PDI). One glycosacharide-PDI complex has been synthesized for the first time to be labeled to apoferritin-encapsulated maghemite nanoparticles. Bifunctionality of maghemite@perylenediimide was demonstrated by both magnetic-core and fluorescent-labeled shell properties.
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