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  • Title: Bifunctional nanoparticles constructed using one-pot encapsulation of a fluorescent polymer and magnetic (Fe3O4) nanoparticles in a silica shell.
    Author: Lee CS, Chang HH, Bae PK, Jung J, Chung BH.
    Journal: Macromol Biosci; 2013 Mar; 13(3):321-31. PubMed ID: 23281296.
    Abstract:
    Integration of biocompatible silica with a fluorescent polymer (PDDF) and superparamagnetic iron oxide nanoparticles (Fe3 O4 ) to form uniform core-shell nanostructures has the great potential to form particles for use in multimodal bioimaging applications. Core-shell nanoparticles (PDDF/Fe3 O4 @SiO2 ) exhibit fluorescent and magnetic properties that are favorable for their use in magnetic separation and guiding applications, as well as optical and magnetic resonance (MR) imaging capabilities. With the biological analysis in an in vitro intracellular permeation and cytotoxicity test, chemical conjugation of the surface using folic acid (FA) molecules can provide the nanoparticles with cell-targeting properties, localizing the nanoparticles to folate receptors (FRs) on target KB cells that over-express the FRs.
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