Next Article in Journal
Templated Synthesis of Magnetic Nanoparticles through the Self-Assembly of Polymers and Surfactants
Next Article in Special Issue
The Use of the Calcitonin Minimal Recognition Module for the Design of DOPA-Containing Fibrillar Assemblies
Previous Article in Journal
Electrochemical Properties of Poly(Anthraquinonyl Sulfide)/Graphene Sheets Composites as Electrode Materials for Electrochemical Capacitors
Previous Article in Special Issue
Directed Kinetic Self-Assembly of Mounds on Patterned GaAs (001): Tunable Arrangement, Pattern Amplification and Self-Limiting Growth
Article Menu

Export Article

Open AccessArticle
Nanomaterials 2014, 4(3), 612-627; doi:10.3390/nano4030612

Design of Magnetic Gelatine/Silica Nanocomposites by Nanoemulsification: Encapsulation versus in Situ Growth of Iron Oxide Colloids

1
Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux (IPREM), Centre National de Recherche Scientifique (CNRS), Université de Pau et des Pays de l'Adour (UPPA), Unité Mixte de Recherche (UMR) 5254, Equipe de Chimie Physique (ECP), Technopôle Hélioparc Pau Pyrénées 2 avenue du Président Pierre Angot, PAU, 64053 Cedex 09, France
2
Chimie de la Matière Condensée de Paris, UMR 7574, Université Pierre et Marie Curie, Bât F, 4 place Jussieu, and Collège de France, 11 place Marcelin Berthelot, Paris 75005, France
3
Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS), Université Paris Diderot, UMR-CNRS 7086, Bâtiment Lavoisier, 15 rue Jean-Antoine de Baïf, Paris, 75205 Cedex 13, France
4
Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe) EA 1391, Université de Cergy Pontoise–UFR Sciences et Techniques, 2 avenue Adolphe Chauvin BP222, Cergy Pontoise, 95302 Cedex, France
*
Author to whom correspondence should be addressed.
Received: 18 June 2014 / Revised: 18 July 2014 / Accepted: 21 July 2014 / Published: 31 July 2014
(This article belongs to the Special Issue Self-Assembled Nanomaterials)
View Full-Text   |   Download PDF [1852 KB, uploaded 31 July 2014]   |  

Abstract

The design of magnetic nanoparticles by incorporation of iron oxide colloids within gelatine/silica hybrid nanoparticles has been performed for the first time through a nanoemulsion route using the encapsulation of pre-formed magnetite nanocrystals and the in situ precipitation of ferrous/ferric ions. The first method leads to bi-continuous hybrid nanocomposites containing a limited amount of well-dispersed magnetite colloids. In contrast, the second approach allows the formation of gelatine-silica core-shell nanostructures incorporating larger amounts of agglomerated iron oxide colloids. Both magnetic nanocomposites exhibit similar superparamagnetic behaviors. Whereas nanocomposites obtained via an in situ approach show a strong tendency to aggregate in solution, the encapsulation route allows further surface modification of the magnetic nanocomposites, leading to quaternary gold/iron oxide/silica/gelatine nanoparticles. Hence, such a first-time rational combination of nano-emulsion, nanocrystallization and sol-gel chemistry allows the elaboration of multi-component functional nanomaterials. This constitutes a step forward in the design of more complex bio-nanoplatforms. View Full-Text
Keywords: nanocomposites; gelatine; silica; iron oxide; nanoparticles; emulsion nanocomposites; gelatine; silica; iron oxide; nanoparticles; emulsion
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Allouche, J.; Chanéac, C.; Brayner, R.; Boissière, M.; Coradin, T. Design of Magnetic Gelatine/Silica Nanocomposites by Nanoemulsification: Encapsulation versus in Situ Growth of Iron Oxide Colloids. Nanomaterials 2014, 4, 612-627.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top