Search for dissertations about: "IRON OXIDE NANOPARTICLE"

Showing result 1 - 5 of 18 swedish dissertations containing the words IRON OXIDE NANOPARTICLE.

2. 1. Building crystals out of crystals : Synthesis, structure and magnetic properties of iron oxide nanoparticles and self-assembled mesocrystals

   Author : Erik Wetterskog; Lennart Bergström; Markus Niederberger; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; iron oxide; nanoparticle; synthesis; self-assembly; characterization; electron microscopy; scattering; magnetic properties; Materials Chemistry; materialkemi;

   Abstract : This thesis is focused on the fabrication and characterization of self-assembled arrays of magnetic iron oxide (Fe3O4, γ-Fe2O3 and Fe1-xO) nanoparticles. The synthesis of spherical and cubic iron oxide nanocrystals, with sizes between 5 and 30 nm and narrow size distributions, is demonstrated, along with a rigorous morphological characterization of the cubic nanoparticles. READ MORE

4. 2. Following nanoparticle self-assembly in real-time : Small-angle X-ray scattering and quartz crystal microbalance study of self-assembling iron oxide nanocubes

   Author : Martin Kapuscinski; Lennart Bergström; Niklas Hedin; Andrei Petukhov; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; self-assembly; mesocrystal; time-resolved; small-angle X-ray scattering; iron oxide nanocubes; QCM-D; Materials Chemistry; materialkemi;

   Abstract : Self-assembly of nanoparticles is a widely used technique to produce nanostructured materials with crystallographic coherence on the atomic scale, i.e. mesocrystals, which can display useful collective properties. This thesis focusses on the underlying mechanism and dynamics of mesocrystal formation by using real-time techniques. READ MORE

5. 3. Crystallization on the Mesoscale : Self-Assembly of Iron Oxide Nanocubes into Mesocrystals

   Author : Michael Agthe; Lennart Bergström; German Salazar-Alvarez; Tommy Nylander; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Self-assembly; iron oxide nanocubes; mesocrystal; small angle X-ray scattering; video microscopy; QCM-D; Materials Chemistry; materialkemi;

   Abstract : Self-assembly of nanoparticles is a promising route to form complex, nanostructured materials with functional properties. Nanoparticle assemblies characterized by a crystallographic alignment of the nanoparticles on the atomic scale, i.e. mesocrystals, are commonly found in nature with outstanding functional and mechanical properties. READ MORE

6. 4. Adsorption, desorption, and redox reactions at iron oxide nanoparticle surfaces

   Author : Lelde Krumina; MEMEG; []
   Keywords : Ferrihydrite; Goethite; Secondary metabolites; Reductive dissolution; Catalytic oxidation; hydroxyl radicals; Fenton reaction; SOM decomposition;

   Abstract : Iron oxide nanoparticles are involved in several important biogeochemical processes. The interfaces between aqueous solutions and iron oxide nanoparticle surfaces are found everywhere in nature, and the chemical and microbial processes occurring at these complex interfaces control e.g. nutrient and contaminant availability and transport. READ MORE

7. 5. Strategies for developing peptide and protein selective plastic antibodies

   Author : Rashmi Mahajan; Ian A. Nicholls; Subramanian Suriyanarayanan; Börje Sellergren; Alessandra Maria Bossi; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Competitive assays; molecularly imprinted polymer; magnetic nanoparticle; nanogel; nanoparticle; plastic antibody; solid-phase synthesis; QCM.; Biokemi; Biochemistry;

   Abstract : The objective of the thesis was to explore approaches for the development of molecularly imprinted materials with predetermined selectivity for peptide or protein targets. In particular, the work has focused on molecularly imprinted nanoparticles synthesized using solid-phase synthesis protocols. READ MORE