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A method for silica-coating of AgI nanoparticles is proposed, which applies Stöber method in the presence of a silane coupling agent, 3-mercaptopropyltrimethoxysilane (MPS), with the use of dimethylamine (DMA) catalyst for alkoxide hydrolysis. The AgI nanoparticles were prepared from AgClO 4 and KI. The silica-coating was performed with 0–2.3×10 −5 M MPS, 11–20M water, 0–0.1M DMA and...
This paper describes silica-coating of polystyrene microspheres incorporated with fluorescence dyes (fluorescent microspheres) by means of a seeded polymerization technique based on Stober method. The silica-coating of the fluorescent microspheres was performed in the presence of 0-10g/l polyvinylpyrrolidone (PVP), 1.13-17M water, 0-1.2M aqueous ammonia and 0.00038-0.2M tetraethoxyorthosilicate (TEOS)...
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