Figure 2.

TEM pictures of nanofluids consisting of nanoparticles before and after the functionalizing process a nanoparticles in ludox TM-40 b functionalized nanoparticles prepared with ludox TM-40 and MPPTS c nanoparticles in self-made nanoparticle solution d functionalized nanoparticles prepared with self-made nanoparticle solution and GPS

Yang and Liu Nanoscale Research Letters 2010 5:1324-1328   doi:10.1007/s11671-010-9646-6