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

Figure 8.

Figure 8

The hypothetical mechanism behind the encapsulation of SPIO and drug in PU NPs by the ultrasonic vibration method.

Abbreviations: PU NPs, polyurethane nanoparticles; SPIO, superparamagnetic iron oxide; Tg, glass transition temperature.