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. 2017 Mar 2;12:1775–1789. doi: 10.2147/IJN.S120290

Figure 3.

Figure 3

Characterization of SPIO-PU NPs.

Notes: (A) ATR-IR absorption spectra of PU1, PU2, PU3, SPIO-PU1, SPIO-PU2, and SPIO-PU3. (B) TGA curves of various SPIO-NPs.

Abbreviations: ATR-IR, attenuated total reflection-infrared spectroscopy; NPs, nanoparticles; PU, polyurethane; SPIO, superparamagnetic iron oxide; TGA, thermogravimetric analyzer.