Templates for helix-structured silica microtubulesare generated by subjecting worm-shaped micelles of cetyltrimethylammonium bromide to so-called Taylor vortex flow conditions between a rotating and a stationary cylinder at controlled speed. Silica deposition from TEOS and template dissolution produce helical tubules about 100 nm in diameter and a few micrometers long (see Figure), potentially useful for chiral catalysis or optical applications.
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Kim et al. (2001) studied this question.
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