Preparation of FITC and Ru(phen)32+ co-doped silica particles and TEM images of the Ru(phen)32+-doped particles. (A) Procedures for preparation of the FITC (green) and Ru(phen)32+ (red) co-doped silica particles. TEM images of the Ru(phen)32+-doped particles (B) before and (C) after the shell growth and graft of FITC.
Xu et al. Nanoscale Research Letters 2011 6:561 doi:10.1186/1556-276X-6-561