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Pluronics-Stabilized Gold Nanoparticles: Investigation of the Structure of the Polymer–Particle Hybrid

✍ Scribed by Kamil Rahme; Julian Oberdisse; Ralf Schweins; Cédric Gaillard; Jean-Daniel Marty; Christophe Mingotaud; Fabienne Gauffre


Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
407 KB
Volume
9
Category
Article
ISSN
1439-4235

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✦ Synopsis


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.


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