One-pot synthesis and surface modifications of organically modified silica (ORMOSIL) particles having multiple functional groups

被引:22
作者
Jung, Chan Yoon [1 ]
Kim, Jung Soo [1 ]
Kim, Ha Young [1 ]
Ha, Jung Min [1 ]
Kim, Yong Hyun [1 ]
Koo, Sang Man [1 ]
机构
[1] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea
关键词
Organically modified silica (ORMOSIL) particles; Surface modification; Dye-tagging; Hybrid composites; INORGANIC HYBRID MATERIALS; CORE/SHELL NANOPARTICLES; IN-VIVO; SPHERES; SIZE; DELIVERY; BRAIN;
D O I
10.1016/j.jcis.2011.09.016
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Here we report a facile one-pot synthetic method for organically modified silica (ORMOSIL) particles having multiple functional groups and demonstrate the homogeneous distribution of functional groups in ORMOSIL particles by chemical reactions of each surface functional group with fluorescent dyes such as fluroescamine and rhodamine B isothiocyanate. Dye-tagged ORMOSIL particles having tri-functional groups are exhibited two fluorescent emission peaks at 475 (blue) and 570 nm (red), indicating the positions of functional groups. The surface reaction of these functionalized ORMOSIL particles with various organic or inorganic materials not only endowed additional functionalities and physical properties, but also produced metallic hybrid composite particles. Chemical and physical properties of functionalized ORMOSIL particles were characterized by FT-IR, solid state C-13 and Si-29 NMR, thermogravimetric analysis (TGA), electron microscopy (SEM and TEM), and X-ray diffraction (XRD) analysis. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码:67 / 73
页数:7
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