Abstract
The use of bis (cytopentadienyl) titanium dichloride, TiCp$\_{2}$Cl$\_{2}$, as a surface hydroxyl staining agent for biological silicas has been investigated by optical density measurements and electron microscopy including X-ray microanalysis. For synthetic silica samples agreement exists between optical density measurements on bulk samples and X-ray analytical data on microscopic sample regions. Studies on heterogeneous biological silicas have, therefore, allowed identification of structural motifs by the level of titanium `stain' incorporation. The variation in surface hydroxyl concentration for silica motifs within a single cell sample suggests a high level of biological control over both polymerization and aggregation of silica.
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Schedule a callMore From: Proceedings of the Royal Society of London. Series B: Biological Sciences
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