Figure 1.

TEM images of nanoparticles. TEM images for (a) Gd2O3-DEG, (b) SPGO-mPEG-silane550, (c) SPGO-mPEG-silane2000. Uniformity and spherical or ellipsoidal shape for Gd2O3-DEG and agglomeration for two other nanoparticles are observed.

Azizian et al. Nanoscale Research Letters 2012 7:549   doi:10.1186/1556-276X-7-549
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