| Summary: | 碩士 === 國立清華大學 === 生命科學系 === 91 === The biological formation of inorganic structures, termed biominerals, is a widespread phenomenon in nature. Biomineraling organisms use organic molecules to generate species-specific patterns. Diatom biosilica displays a dazzling variety of species-specific silica patterns that are structured on a nanometer-to-micrometer scale. Deposited silica occurs in three morphological forms in the wall formation: as spherical particles, as hexagonal columns, and as microfibrils. Previous studies demonstrated that HF-extract of cell wall of numerous diatom species can direct the silica deposition as spherical particles in vitro. Here, we demonstrate HF-extract of cell wall of Skeletonema costatum can direct silica deposition as another form, microfibrils.
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