Bio-inspired Magnetite Mineralization in Gelatin Hydrogels : A Small Angle Scattering Investigation

Lade...
Vorschaubild
Dateien
Wu-0-377350.pdf
Wu-0-377350.pdfGrĆ¶ĆŸe: 13.89 MBDownloads: 590
Datum
2016
Autor:innen
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfƤhiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsfƶrderung
Projekt
Open Access-Verƶffentlichung
Open Access Green
Sammlungen
Core Facility der UniversitƤt Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Dissertation
Publikationsstatus
Published
Erschienen in
Zusammenfassung

Biomineralization represents a sophisticated process of forming a highly hierarchically ordered mineral structure by a living organism. The process is carried out under strict biological control of specially designed biomacromolecules. Mineralization mechanisms permitting such sophistication control typically involve interaction between an inorgan-ic mineral and an organic matrix interface. A clear understanding of the mechanisms of this process may pave way for exploration of new material design strategies and genera-tion of materials with improved mechanical, chemical and physical properties. We thus attempt to follow natureā€Ÿs fabrication strategy of using biomolecules and study the min-eralization process in-situ which might shed light on the mechanistic aspects of control-ling the process. The aim of this work is to investigate, understand and probably control the mechanism of bio-inspired magnetite mineralization in organic matrices and the organic-inorganic hybrid structures by Small Angle Neutron and X-ray Scattering methods. The studies focus on the nucleation and growth of the magnetite particles in the gelatin hydrogel matrix by employing biomineralization strategies from three natural bio-minerals. The SANS contrast matching method was used by the variation of heavy water content in the H2O/D2O mixture in order to emphasize the structure of the individual components of the complex material on the different stages of biomineralization process. These re-sults have provided structural information and understanding of the mechanisms of magnetite mineralization as well as in-situ. Several hypotheses have been introduced to explain functionality of the organic matrix in magnetite biomineralization. These struc-tural and mineralization mechanisms were compared with the biological samples. The comparative studies of the structural features will help to optimize the structure of mate-rials for improved mechanical properties.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
Schlagwƶrter
Biomineralization, Magnetite, Gelatin, Hydrogels, SANS, VSANS, SAXS
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690WU, Baohu, 2016. Bio-inspired Magnetite Mineralization in Gelatin Hydrogels : A Small Angle Scattering Investigation [Dissertation]. Konstanz: University of Konstanz
BibTex
@phdthesis{Wu2016Bioin-36235,
  year={2016},
  title={Bio-inspired Magnetite Mineralization in Gelatin Hydrogels : A Small Angle Scattering Investigation},
  author={Wu, Baohu},
  address={Konstanz},
  school={UniversitƤt Konstanz}
}
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/123456789/36235">
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/36235/3/Wu-0-377350.pdf"/>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-12-08T09:16:02Z</dc:date>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/36235"/>
    <dcterms:issued>2016</dcterms:issued>
    <dc:language>eng</dc:language>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:rights>terms-of-use</dc:rights>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:contributor>Wu, Baohu</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:title>Bio-inspired Magnetite Mineralization in Gelatin Hydrogels : A Small Angle Scattering Investigation</dcterms:title>
    <dc:creator>Wu, Baohu</dc:creator>
    <dcterms:abstract xml:lang="eng">Biomineralization represents a sophisticated process of forming a highly hierarchically ordered mineral structure by a living organism. The process is carried out under strict biological control of specially designed biomacromolecules. Mineralization mechanisms permitting such sophistication control typically involve interaction between an inorgan-ic mineral and an organic matrix interface. A clear understanding of the mechanisms of this process may pave way for exploration of new material design strategies and genera-tion of materials with improved mechanical, chemical and physical properties. We thus attempt to follow natureā€Ÿs fabrication strategy of using biomolecules and study the min-eralization process in-situ which might shed light on the mechanistic aspects of control-ling the process. The aim of this work is to investigate, understand and probably control the mechanism of bio-inspired magnetite mineralization in organic matrices and the organic-inorganic hybrid structures by Small Angle Neutron and X-ray Scattering methods. The studies focus on the nucleation and growth of the magnetite particles in the gelatin hydrogel matrix by employing biomineralization strategies from three natural bio-minerals. The SANS contrast matching method was used by the variation of heavy water content in the H2O/D2O mixture in order to emphasize the structure of the individual components of the complex material on the different stages of biomineralization process. These re-sults have provided structural information and understanding of the mechanisms of magnetite mineralization as well as in-situ. Several hypotheses have been introduced to explain functionality of the organic matrix in magnetite biomineralization. These struc-tural and mineralization mechanisms were compared with the biological samples. The comparative studies of the structural features will help to optimize the structure of mate-rials for improved mechanical properties.</dcterms:abstract>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-12-08T09:16:02Z</dcterms:available>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/36235/3/Wu-0-377350.pdf"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalverƶffentl.
PrĆ¼fdatum der URL
PrĆ¼fungsdatum der Dissertation
June 21, 2016
Hochschulschriftenvermerk
Konstanz, Univ., Diss., 2016
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
UniversitƤtsbibliographie
Begutachtet
Diese Publikation teilen