Université de Fribourg

Amino covalent binding approach on iron oxide nanoparticle surface: toward biological applications

Griffete, Nébéwia ; Clift, Martin J.D. ; Lamouri, Aazdine ; Digigow, Reinaldo G. ; Mihut, Adriana M. ; Fink, Alke ; Rothen-Rutishauser, Barbara ; Dietsch, Hervé

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2012, p. -

We report on the synthesis and the surface modification of different types of magnetic iron oxide particles by developing an original process based on diazonium salts chemistry. Particles were first coated with amino groups and then subjected to polyethylene glycol (PEG) surface modification. They were subsequently characterized by Transmission electron microscopy, infrared spectroscopy,...

Université de Fribourg

Crystallization-induced aggregation of block copolymer micelles: influence of crystallization kinetics on morphology

Mihut, Adriana M. ; Crassous, Jérôme J. ; Schmalz, Holger ; Ballauff, Matthias

In: Colloid & Polymer Science, 2010, vol. 288, no. 5, p. 573-578

We present a systematic investigation of the crystallization and aggregation behavior of a poly(1,2-butadiene)-block-poly(ethylene oxide) diblock copolymer (PB-b-PEO) in n-heptane. n-Heptane is a poor solvent for PEO and at 70°C the block copolymer self-assembles into spherical micelles composed of a liquid PEO core and a soluble PB corona. Time- and...

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2 Mihut, Adriana M.