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The use of porous silica microshells (microparticles) generated from fossilised diatoms known as diatomite or diatomaceous earth (DE) as a natural drug carrier for drug delivery application is presented. The structure, morphology, particle size distribution, porosity, surface area and crystallinity of diatom microshells obtained from Australian mine (Mount Sylvia Diatomite Pty. Ltd.) were characterised...
Three-dimensional (3-d) gold microstructures with complex architecture were prepared from silica-based diatom microshells (frustules) using template synthetic process based on the electroless metal (gold) deposition. Diatom frustules were replicated into gold microstructures with a high-precision, entirely preserving their shape and micro and nanoscale porous features.
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