Assertion: polyethylene glycol gallic acid | /r/HasProperty | fpegg
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text: Figure 4 shows the hysteresis loops of naked iron oxide nanoparticles (Figure 4(A)), iron oxide coated with polyethylene glycol-gallic acid (FPEGG) (Figure 4(B)), and iron oxide coated with polyvinyl alcohol-gallic acid (FPVAG) characterized by vibrating sample magnetometer (VSM) at room temperature.