Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface

Lade...
Vorschaubild
Dateien
12811.pdf
12811.pdfGröße: 899.6 KBDownloads: 694
Datum
2010
Autor:innen
Junginger, Mathias
Kita-Tokarcyk, Katarzyna
Schuster, Thomas
Reiche, Jürgen
Schacher, Felix
Müller, Axel H. E.
Taubert, Andreas
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
LENDLEIN, Andreas, ed.. Macromolecular Bioscience. 2010, 10(9), pp. 1084-1092. eISSN 1616-5187. Available under: doi: 10.1002/mabi.201000093
Zusammenfassung

The self-assembly of the amphiphilic block copolymer poly(n-butyl methacrylate)-block-poly[2-(dimethylamino)ethyl methacrylate] at the air water interface has been investigated at different pH values. Similar to Rehfeldt et al. (J. Phys. Chem. B2006, 110, 9171), the subphase pH strongly affects the monolayer properties. The formation of calcium phosphate beneath the monolayer can be tuned by the subphase pH and hence the monolayer charge. After 12 h of mineralization at pH 5, the polymer monolayers are still transparent, but transmission electron microscopy (TEM) shows that very thin calcium phosphate fibers form, which aggregate into cotton ball-like features with diameters of 20 to 50 nm. In contrast, after 12 h of mineralization at pH 8, the polymer film is very slightly turbid and TEM shows dense aggregates with sizes between 200 and 700 nm. The formation of calcium phosphate is further confirmed by Raman and energy dispersive X-ray spectroscopy. The calcium phosphate architectures can be assigned to the monolayer charge, which is high at low pH and low at high pH. The study demonstrates that the effects of polycations should not be ignored if attempting to understand the colloid chemistry of biomimetic mineralization. It also shows that basic block copolymers are useful complementary systems to the much more commonly studied acidic block copolymer templates.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
Schlagwörter
biomimetic, biomineralization, calcium phosphate, polymer monolayer
Konferenz
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690JUNGINGER, Mathias, Katarzyna KITA-TOKARCYK, Thomas SCHUSTER, Jürgen REICHE, Felix SCHACHER, Axel H. E. MÜLLER, Helmut CÖLFEN, Andreas TAUBERT, 2010. Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface. In: LENDLEIN, Andreas, ed.. Macromolecular Bioscience. 2010, 10(9), pp. 1084-1092. eISSN 1616-5187. Available under: doi: 10.1002/mabi.201000093
BibTex
@article{Junginger2010Calci-9642,
  year={2010},
  doi={10.1002/mabi.201000093},
  title={Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface},
  number={9},
  volume={10},
  journal={Macromolecular Bioscience},
  pages={1084--1092},
  author={Junginger, Mathias and Kita-Tokarcyk, Katarzyna and Schuster, Thomas and Reiche, Jürgen and Schacher, Felix and Müller, Axel H. E. and Cölfen, Helmut and Taubert, Andreas}
}
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/123456789/9642">
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9642/1/12811.pdf"/>
    <dc:contributor>Reiche, Jürgen</dc:contributor>
    <dc:creator>Schacher, Felix</dc:creator>
    <dc:contributor>Kita-Tokarcyk, Katarzyna</dc:contributor>
    <dc:contributor>Schuster, Thomas</dc:contributor>
    <dc:creator>Junginger, Mathias</dc:creator>
    <dc:language>eng</dc:language>
    <dcterms:issued>2010</dcterms:issued>
    <dc:contributor>Cölfen, Helmut</dc:contributor>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:13:24Z</dcterms:available>
    <dc:creator>Müller, Axel H. E.</dc:creator>
    <dc:creator>Schuster, Thomas</dc:creator>
    <dc:contributor>Junginger, Mathias</dc:contributor>
    <dcterms:abstract xml:lang="eng">The self-assembly of the amphiphilic block copolymer poly(n-butyl methacrylate)-block-poly[2-(dimethylamino)ethyl methacrylate] at the air water interface has been investigated at different pH values. Similar to Rehfeldt et al. (J. Phys. Chem. B2006, 110, 9171), the subphase pH strongly affects the monolayer properties. The formation of calcium phosphate beneath the monolayer can be tuned by the subphase pH and hence the monolayer charge. After 12 h of mineralization at pH 5, the polymer monolayers are still transparent, but transmission electron microscopy (TEM) shows that very thin calcium phosphate fibers form, which aggregate into cotton ball-like features with diameters of 20 to 50 nm. In contrast, after 12 h of mineralization at pH 8, the polymer film is very slightly turbid and TEM shows dense aggregates with sizes between 200 and 700 nm. The formation of calcium phosphate is further confirmed by Raman and energy dispersive X-ray spectroscopy. The calcium phosphate architectures can be assigned to the monolayer charge, which is high at low pH and low at high pH. The study demonstrates that the effects of polycations should not be ignored if attempting to understand the colloid chemistry of biomimetic mineralization. It also shows that basic block copolymers are useful complementary systems to the much more commonly studied acidic block copolymer templates.</dcterms:abstract>
    <dc:format>application/pdf</dc:format>
    <dc:contributor>Müller, Axel H. E.</dc:contributor>
    <dcterms:title>Calcium Phosphate Mineralization beneath a Polycationic Monolayer at the Air-Water Interface</dcterms:title>
    <dc:creator>Taubert, Andreas</dc:creator>
    <dc:rights>terms-of-use</dc:rights>
    <dc:creator>Reiche, Jürgen</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Kita-Tokarcyk, Katarzyna</dc:creator>
    <dc:contributor>Schacher, Felix</dc:contributor>
    <dc:creator>Cölfen, Helmut</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:13:24Z</dc:date>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9642"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:bibliographicCitation>First publ. in: Macromolecular Bioscience 10 (2010), 9, pp. 1084-1092</dcterms:bibliographicCitation>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9642/1/12811.pdf"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:contributor>Taubert, Andreas</dc:contributor>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Diese Publikation teilen