초록 |
Functionalized and ordered mesoporous silica particles have diverse application opportunities in catalysis, separation, sensing, and delivery. As a functionalization site, the mesoporous silica particle has three different areas including an outer surface, a silica framework, and an inner surface. We present an approach to functionalize each of these three areas with a different functional group. Multifunctional mesoporous silica particles showing fluorescence resonance energy transfer (FRET) were prepared by selective and sequential modification. A silica-polymer thin film was prepared where the silica particles were embedded in a poly(2-hydroxyethyl methacrylate) matrix. Both the suspension of the silica particles in ethanol and their polymer composite film showed the efficient FRET effect. |