The sol-gel process is a widely used method for synthesizing nanoparticles with precise control over size, shape, and composition. This method converts a liquid precursor, or "sol," into a solid gel ...
Diatoms are wondrous creatures. These single-celled microscopic algae live in fresh or salt water that contains minute amounts of silicic acid. The diatoms extract the soluble silicic acid from the ...
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