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One-Pot Synthesis of Pegylated Fluorescent Nanoparticles by RAFT Miniemulsion Polymerization Using a Phase Inversion Process.

Chloé Grazon 1 Jutta Rieger 2 Rachel Méallet-Renault 1 Gilles Clavier 1, * Bernadette Charleux 2, 3, *
* Corresponding author
2 LCP - Chimie des polymères
IPCM - Institut Parisien de Chimie Moléculaire, UPMC - Université Pierre et Marie Curie - Paris 6, CNRS - Centre National de la Recherche Scientifique : UMR7610
Abstract : Water-soluble and fluorescent core-shell nanoparticles (FNP) are synthesized in a miniemulsion reversible addition-fragmentation transfer (RAFT) polymerization and are shown to respond to pH. The particles are obtained from a hydrophilic PEO-b-PAA macromolecular RAFT agent which is block-extended with styrene and a fluorescent BODIPY monomer. A miniemulsion is then formed with the residual hydrophobic monomers. After completion of the polymerization, FNP of ≈ 60 nm in diameter are obtained. The fluorescence of the BODIPY dye in the particles is found to remain (0.2 quantum yield). The particles can be precipitated in acidic pH and redispersed upon addition of base without loss of their integrity or noticeable rearrangement.
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Submitted on : Tuesday, November 9, 2021 - 10:04:14 AM
Last modification on : Friday, January 14, 2022 - 4:24:02 PM
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Chloé Grazon, Jutta Rieger, Rachel Méallet-Renault, Gilles Clavier, Bernadette Charleux. One-Pot Synthesis of Pegylated Fluorescent Nanoparticles by RAFT Miniemulsion Polymerization Using a Phase Inversion Process.. Macromolecular Rapid Communications, Wiley-VCH Verlag, 2011, 32 (9-10), pp.699-705. ⟨10.1002/marc.201100008⟩. ⟨hal-00598359⟩

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