Figure 3.

FTIR spectra for DEGPEGylated nanoparticles. FTIR spectra of (a) mPEG-silane550 powder, (b) mPEG-silane2000 powder, (c) a commercial SPGO powder, (d) mPEG-silane550-coated Gd2O3 nanoparticles, and (e) mPEG-silane2000-coated Gd2O3 nanoparticles.

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