Publikation: Formation and Optical Properties of Gold Nanoparticles Synthesized in the Presence of Double-Hydrophilic Block Copolymers
Dateien
Datum
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfähiger Link)
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Publikationsstatus
Erschienen in
Zusammenfassung
In this article, we present a systematic, controlled synthesis of water-dispersed, polymer-stabilized Au nanoparticles with different sizes by either self-reduction or ultraviolet (UV) irradiation-enhanced reduction in the presence of double hydrophilic block copolymers with different functional patterns. The morphology of the particles was found to be spherical, triangular, truncated triangular, and hexagonal under various conditions. In addition, both the particle size and shape could be controlled by variation of the functional group pattern of the block copolymers. With a hexacyclen functional block, we achieved a perfect match to the Au (111) face, resulting in extremely thin free-standing triangular and hexagonal nanoplatelets that show interference patterns in the electron beam due to deformations in the sub-Angstrom range. UV-visible spectra show that the plasmon absorption band can be fine tuned, depending on the type of the polymer and the irradiation power. The influence of the functional polymer groups and the irradiation on the formation of gold nanoparticles was investigated in more detail.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
Schlagwörter
Konferenz
Rezension
Zitieren
ISO 690
YU, Shu-Hong, Helmut CÖLFEN, Yitzhak MASTAI, 2004. Formation and Optical Properties of Gold Nanoparticles Synthesized in the Presence of Double-Hydrophilic Block Copolymers. In: Journal of Nanoscience and Nanotechnology. 2004, 4(3), pp. 291-298. ISSN 1533-4880. eISSN 1533-4899. Available under: doi: 10.1166/jnn.2004.030BibTex
@article{Yu2004-03-01Forma-40294, year={2004}, doi={10.1166/jnn.2004.030}, title={Formation and Optical Properties of Gold Nanoparticles Synthesized in the Presence of Double-Hydrophilic Block Copolymers}, number={3}, volume={4}, issn={1533-4880}, journal={Journal of Nanoscience and Nanotechnology}, pages={291--298}, author={Yu, Shu-Hong and Cölfen, Helmut and Mastai, Yitzhak} }
RDF
<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/40294"> <dc:contributor>Cölfen, Helmut</dc:contributor> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dcterms:issued>2004-03-01</dcterms:issued> <dc:contributor>Yu, Shu-Hong</dc:contributor> <dc:contributor>Mastai, Yitzhak</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Yu, Shu-Hong</dc:creator> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/> <dc:creator>Cölfen, Helmut</dc:creator> <dcterms:title>Formation and Optical Properties of Gold Nanoparticles Synthesized in the Presence of Double-Hydrophilic Block Copolymers</dcterms:title> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/40294"/> <dcterms:abstract xml:lang="eng">In this article, we present a systematic, controlled synthesis of water-dispersed, polymer-stabilized Au nanoparticles with different sizes by either self-reduction or ultraviolet (UV) irradiation-enhanced reduction in the presence of double hydrophilic block copolymers with different functional patterns. The morphology of the particles was found to be spherical, triangular, truncated triangular, and hexagonal under various conditions. In addition, both the particle size and shape could be controlled by variation of the functional group pattern of the block copolymers. With a hexacyclen functional block, we achieved a perfect match to the Au (111) face, resulting in extremely thin free-standing triangular and hexagonal nanoplatelets that show interference patterns in the electron beam due to deformations in the sub-Angstrom range. UV-visible spectra show that the plasmon absorption band can be fine tuned, depending on the type of the polymer and the irradiation power. The influence of the functional polymer groups and the irradiation on the formation of gold nanoparticles was investigated in more detail.</dcterms:abstract> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-10-10T13:24:19Z</dcterms:available> <dc:creator>Mastai, Yitzhak</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-10-10T13:24:19Z</dc:date> </rdf:Description> </rdf:RDF>