Silica core - shell microparticles are prepared by growing a porous silica shell from a silica precursor onto the surface of non- porous silica particle dispersed in a mixed surfactant solution under basic pH conditions. The particles are hydrothermally treating in an oil-in-water emulsion system and the particles are calcined to remove residual surfactants. Optionally, the particles o may be base etched to expand the size of the pores in the silica shell. Core-shell silica particle with an ordered mesoporous layer are produced.
申请公布号
WO2010061367(A3)
申请公布日期
2010.08.05
申请号
WO2009IE00083
申请日期
2009.11.26
申请人
UNIVERSITY COLLEGE CORK - NATIONAL UNIVERSITY OF;GLENNON, JEREMY D.;OMAMOGHO, JESSE