Nanoparticle Gradient Materials by Centrifugation

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SPINNROCK, Andreas, David SCHUPP, Helmut CÖLFEN, 2018. Nanoparticle Gradient Materials by Centrifugation. In: Small. 14(50), 1803518. ISSN 1613-6810. eISSN 1613-6829. Available under: doi: 10.1002/smll.201803518

@article{Spinnrock2018-12Nanop-44260, title={Nanoparticle Gradient Materials by Centrifugation}, year={2018}, doi={10.1002/smll.201803518}, number={50}, volume={14}, issn={1613-6810}, journal={Small}, author={Spinnrock, Andreas and Schupp, David and Cölfen, Helmut}, note={Article Number: 1803518} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dcterms:title>Nanoparticle Gradient Materials by Centrifugation</dcterms:title> <dc:creator>Spinnrock, Andreas</dc:creator> <dspace:isPartOfCollection rdf:resource=""/> <dc:creator>Cölfen, Helmut</dc:creator> <dcterms:available rdf:datatype="">2018-12-11T12:26:09Z</dcterms:available> <dcterms:issued>2018-12</dcterms:issued> <dcterms:abstract xml:lang="eng">Nanoparticle gradient materials are a unique class of functional materials. They combine the specific properties of nanoparticles with macroscopic materials. A continuous spatial gradient of the nanoparticle concentration leads to diverse physical property profiles. Therefore, these materials have a remarkable potential for applications in optics, electronics, and sensors. A novel approach for the defined and controlled synthesis of this material class is the fabrication in ultracentrifugal fields. The formation of a nanoparticle gradient by sedimentation in a gelatin solution is monitored online with optical systems inside an analytical ultracentrifuge. As soon as the desired nanoparticle concentration gradient is generated, the material is solidified by gelation and the desired gradient is fixed in the material. Application of the established theory of analytical ultracentrifugation allows simulations of the sedimentation process of the nanoparticles in advance. Thus, desired nanoparticle gradient materials can also be tailor-made and fabricated on a preparative scale. This is demonstrated for the example of spherical gold nanoparticles of different sizes, gold nanorods, mixtures thereof, and spherical superparamagnetic iron oxide nanoparticles.</dcterms:abstract> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Spinnrock, Andreas</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Schupp, David</dc:creator> <dc:contributor>Schupp, David</dc:contributor> <bibo:uri rdf:resource=""/> <dc:contributor>Cölfen, Helmut</dc:contributor> <dc:date rdf:datatype="">2018-12-11T12:26:09Z</dc:date> <dcterms:isPartOf rdf:resource=""/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> </rdf:Description> </rdf:RDF>

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