Publikation:

Calcium phosphate colloids with hierarchical structure controlled by polyaspartates

Lade...
Vorschaubild

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2002

Autor:innen

Peytcheva, Anna
Schnablegger, Heimo
Antonietti, Markus

Herausgeber:innen

Kontakt

ISSN der Zeitschrift

Electronic ISSN

ISBN

Bibliografische Daten

Verlag

Schriftenreihe

Auflagebezeichnung

URI (zitierfähiger Link)
ArXiv-ID

Internationale Patentnummer

Angaben zur Forschungsförderung

Projekt

Open Access-Veröffentlichung
Core Facility der Universität Konstanz

Gesperrt bis

Titel in einer weiteren Sprache

Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published

Erschienen in

Colloid and Polymer Science. 2002, 280(3), pp. 218-227. ISSN 0303-402X. eISSN 1435-1536. Available under: doi: 10.1007/s00396-001-0600-0

Zusammenfassung

Precipitation of calcium phosphate in a double-jet experiment in the presence of sodium polyaspartic acid results in a structural evolution of stable colloidal objects with a variety of unconventional morphologies. This structural evolution is characterized by a combination of techniques, namely static and dynamic light scattering, small-angle and wide-angle X-ray scattering, and transmission electron microscopy. It is shown that after immediate formation of amorphous precursor nanoparticles with a “parachute architecture”, the system transfers into a hollow sphere morphology in the 500-nm region and is composed of plateletlike nanocrystals, and again is transferred into a final, “snowball-like” morphology of high structural definition and monodispersity. The kinetics depends on the amount and the molecular weight of the polymer, but similar structural elements are found in all the cases examined. When repeated in a triple-jet experiment, which also ensures a constant polymer concentration, it was possible to intercept a postulated intermediate structure in practically complete yield, namely crystalline hydroxyapatite nanofibres with extremely high axial ratios which form an interwoven gel.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
540 Chemie

Schlagwörter

Crystallization control, Calcium phosphate, Polyaspartate, Morphosynthesis, Biomineralization

Konferenz

Rezension
undefined / . - undefined, undefined

Forschungsvorhaben

Organisationseinheiten

Zeitschriftenheft

Zugehörige Datensätze in KOPS

Zitieren

ISO 690PEYTCHEVA, Anna, Helmut CÖLFEN, Heimo SCHNABLEGGER, Markus ANTONIETTI, 2002. Calcium phosphate colloids with hierarchical structure controlled by polyaspartates. In: Colloid and Polymer Science. 2002, 280(3), pp. 218-227. ISSN 0303-402X. eISSN 1435-1536. Available under: doi: 10.1007/s00396-001-0600-0
BibTex
@article{Peytcheva2002Calci-40477,
  year={2002},
  doi={10.1007/s00396-001-0600-0},
  title={Calcium phosphate colloids with hierarchical structure controlled by polyaspartates},
  number={3},
  volume={280},
  issn={0303-402X},
  journal={Colloid and Polymer Science},
  pages={218--227},
  author={Peytcheva, Anna and Cölfen, Helmut and Schnablegger, Heimo and Antonietti, Markus}
}
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/123456789/40477">
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-11-03T10:22:50Z</dcterms:available>
    <dc:contributor>Peytcheva, Anna</dc:contributor>
    <dc:contributor>Cölfen, Helmut</dc:contributor>
    <dcterms:issued>2002</dcterms:issued>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:creator>Schnablegger, Heimo</dc:creator>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-11-03T10:22:50Z</dc:date>
    <dc:contributor>Schnablegger, Heimo</dc:contributor>
    <dc:language>eng</dc:language>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/40477"/>
    <dc:creator>Peytcheva, Anna</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:abstract xml:lang="eng">Precipitation of calcium phosphate in a double-jet experiment in the presence of sodium polyaspartic acid results in a structural evolution of stable colloidal objects with a variety of unconventional morphologies. This structural evolution is characterized by a combination of techniques, namely static and dynamic light scattering, small-angle and wide-angle X-ray scattering, and transmission electron microscopy. It is shown that after immediate formation of amorphous precursor nanoparticles with a “parachute architecture”, the system transfers into a hollow sphere morphology in the 500-nm region and is composed of plateletlike nanocrystals, and again is transferred into a final, “snowball-like” morphology of high structural definition and monodispersity. The kinetics depends on the amount and the molecular weight of the polymer, but similar structural elements are found in all the cases examined. When repeated in a triple-jet experiment, which also ensures a constant polymer concentration, it was possible to intercept a postulated intermediate structure in practically complete yield, namely crystalline hydroxyapatite nanofibres with extremely high axial ratios which form an interwoven gel.</dcterms:abstract>
    <dcterms:title>Calcium phosphate colloids with hierarchical structure controlled by polyaspartates</dcterms:title>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:creator>Antonietti, Markus</dc:creator>
    <dc:creator>Cölfen, Helmut</dc:creator>
    <dc:contributor>Antonietti, Markus</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
Nein
Begutachtet
Diese Publikation teilen