Manufacturing method of magnetite nanoparticle incoporated silica aerogel

摘要

PURPOSE: A method for manufacturing silica aerogel is provided to prevent the re-stenosis of a stent and to rapidly raise temperatures by applying an inductive magnetic field to the silica aerogel with magnetite nanoparticles in pores. CONSTITUTION: Magnetite nanoparticles are dispersed in the pores of porous silica aerogel by implementing a magnetite precursor solution-based porous silica aerogel precipitating process, a heating process, a magnetite nanoparticle synthesizing process. The magnetite nanoparticles include particles with superparamagnetic characteristic proportion. 0.01-90 weight% of the silica aerogel is contained with respect to the silica aerogel. The particle sizes of the magnetite nanoparticles are between 1 and 50nm.