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Structural and magn...
Structural and magnetic properties of multi-core nanoparticles analysed using a generalised numerical inversion method
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- Bender, P. (author)
- Universidad de Cantabria,University of Cantabria,University of Cantabria, Spain
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- Bogart, L. K. (author)
- University College London (UCL),University College London, UK
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- Posth, Oliver (author)
- Physikalisch-Technische Bundesanstalt (PTB),Physikalisch-Technische Bundesanstalt, Germany
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- Szczerba, W. (author)
- Bundesanstalt für Materialforschung und -prüfung (BAM),Federal Institute for Materials Research and Testing,Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie,AGH University of Science and Technology,BAM Bundesanstalt für Materialforschung Und-prüfung, Germany ; AGH University of Science and Technology, Poland,Federal Institute for Material Research and Testing (BAM) Germany
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- Rogers, S. E. (author)
- ISIS Neutron and Muon Source,ISIS-STFC Neutron Scattering Facility, UK
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- Castro, A. (author)
- SOLVE Research and Consultancy AB, Sweden
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- Nilsson, L. (author)
- Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH,SOLVE Research and Consultancy AB, Sweden; Lund University, Sweden
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- Zeng, Lunjie, 1983 (author)
- Chalmers University of Technology,Chalmers University of Technology, Sweden
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- Sugunan, Abhilash (author)
- RISE,SP Sveriges Tekniska Forskningsinstitut AB,SP Swedish National Testing and Research Institute,Kemi och material
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- Sommertune, Jens (author)
- RISE,SP Sveriges Tekniska Forskningsinstitut AB,SP Swedish National Testing and Research Institute,Kemi och material
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- Fornara, A. (author)
- RISE,SP Sveriges Tekniska Forskningsinstitut AB,SP Swedish National Testing and Research Institute,Kemi och material
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- Gonzalez-Alonso, D. (author)
- Universidad de Cantabria,University of Cantabria,University of Cantabria, Spain
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- Barquin, L. F. (author)
- Universidad de Cantabria,University of Cantabria,University of Cantabria, Spain
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- Johansson, Christer (author)
- RISE,Acreo
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(creator_code:org_t)
- 2017-04-11
- 2017
- English.
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In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322 .- 2045-2322. ; 7
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Abstract
Subject headings
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- The structural and magnetic properties of magnetic multi-core particles were determined by numerical inversion of small angle scattering and isothermal magnetisation data. The investigated particles consist of iron oxide nanoparticle cores (9 nm) embedded in poly(styrene) spheres (160 nm). A thorough physical characterisation of the particles included transmission electron microscopy, X-ray diffraction and asymmetrical flow field-flow fractionation. Their structure was ultimately disclosed by an indirect Fourier transform of static light scattering, small angle X-ray scattering and small angle neutron scattering data of the colloidal dispersion. The extracted pair distance distribution functions clearly indicated that the cores were mostly accumulated in the outer surface layers of the poly(styrene) spheres. To investigate the magnetic properties, the isothermal magnetisation curves of the multicore particles (immobilised and dispersed in water) were analysed. The study stands out by applying the same numerical approach to extract the apparent moment distributions of the particles as for the indirect Fourier transform. It could be shown that the main peak of the apparent moment distributions correlated to the expected intrinsic moment distribution of the cores. Additional peaks were observed which signaled deviations of the isothermal magnetisation behavior from the non-interacting case, indicating weak dipolar interactions.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Dipolar
- Transformation
- Ferrofluids
- Light-Scattering
- Interactions
- Drug-Delivery
- Hyperthermia
- Iron-Oxide Nanoparticles
- Biomedical Applications
- Particle
- Indirect Fourier
- Small-Angle Scattering
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Bender, P.
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Bogart, L. K.
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Posth, Oliver
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Szczerba, W.
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Rogers, S. E.
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Castro, A.
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Nilsson, L.
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Zeng, Lunjie, 19 ...
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Sugunan, Abhilas ...
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Sommertune, Jens
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Fornara, A.
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Gonzalez-Alonso, ...
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Barquin, L. F.
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Johansson, Chris ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Metallurgy and M ...
- Articles in the publication
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Scientific Repor ...
- By the university
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Chalmers University of Technology
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Lund University
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RISE