Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"biosilicification"”.
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Molecular pathways of silica nanoparticle formation and biosilicification
Biosilicification and silica nanoparticle formation occur in many modem terrestrial environments and they also played an important role in ancient geological settings. This thesis presents results from (i) field studies in Icelandic geothermal waters that aimed at quantifying the parameters that …
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Development of new fluorescence spectroscopy approaches for the study of silica
… and is used in biology to understand biosilicification. This ‘silicaphilic’ fluorescence is not well understood nor is the response to local environmental variables like solvent and pH. We investigated PDMPO in a range of environments: using UV-visible and fluorescence spectroscopy …
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Biologically Controlled Mineralization and Demineralization of Amorphous Silica
… nature of the macromolecules involved in biosilicification is revealed, the means these species employ to control the temporal and spatial onset of silica deposition in vivo become available for exploration. The first chapter of this dissertation outlines those aspects of silicate …
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Engineering Biocatalytic And Living Materials
… over the scaffold morphology and extent of biosilicification. At high silica concentrations, the proteins catalyzed the formation of a macroscale silica gel, and the microstructure and mechanical properties of the gel could be tuned by adjusted the protein concentration. The silica …
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Induktion und Kontrolle hierarchischer Ordnung durch selbstorganisierte, funktionale Polymer-Peptid-Nanostrukturen
Im Rahmen der Arbeit werden hierarchisch strukturierte Silikakompositfasern präsentiert, deren Bildung ähnlich zu natürlichen Silifizierungsreaktionen verläuft. Als Analoga zu Proteinfilamenten in Silika Morphogeneseorganismen werden selbstorganisierte, funktionale Polyethylenoxid-Peptid-Nanobänder …