fig3
![Influence of hydrogel and porous scaffold on the magnetic thermal property and anticancer effect of Fe<sub>3</sub>O<sub>4</sub> nanoparticles](https://image.oaes.cc/5c624b24-a3dc-4f7c-9a90-bc28ff22394c/microstructures3046.fig.3.jpg)
Figure 3. Gross appearances (A) and SEM images (B) of agarose and agarose/Fe3O4 hydrogels with different concentrations of citrate-modified Fe3O4 NPs. Gross appearances (C) and SEM images (D) of gelatin and gelatin/Fe3O4 porous scaffold with different concentrations of citrate-modified Fe3O4 NPs.