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Pluronics‐Stabilized Gold Nanoparticles: Investigation of the Structure of the Polymer–Particle Hybrid
Author(s) -
Rahme Kamil,
Oberdisse Julian,
Schweins Ralf,
Gaillard Cédric,
Marty JeanDaniel,
Mingotaud Christophe,
Gauffre Fabienne
Publication year - 2008
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800358
Subject(s) - poloxamer , colloidal gold , polymer , nanoparticle , micelle , dynamic light scattering , materials science , particle size , chemical engineering , amphiphile , particle (ecology) , small angle neutron scattering , copolymer , neutron scattering , nanotechnology , polymer chemistry , scattering , chemistry , aqueous solution , optics , organic chemistry , composite material , oceanography , physics , geology , engineering
Abstract Hybrid gold–polymer nanoparticles are obtained by self‐assembly of amphiphilic copolymers (Pluronics) in solutions containing preformed gold nanoparticles (diameter ca. 12 nm). Dynamic light scattering, TEM, cryo‐TEM, and small‐angle neutron scattering experiments with contrast variation are used to characterize the structure of the gold–polymer particles. Five Pluronics (F127, F68, F88, F108, P84) with different molecular weights and hydrophilic/hydrophobic balances are investigated. Gold nanoparticles are individually embedded within globules of polymer, even under conditions for which Pluronics micelles do not form in solution. The hybrid particles are several tens of nanometers in size (larger than micelles of the corresponding Pluronics), and the size can be tuned by changing the temperature.