Preparation and Characterization of a Tumor-Targeting Dual-Image System Based on Iron Oxide Nanoparticles Functionalized with Folic Acid and Rhodamine

Figure 2

(a) TEM micrograph of unmodified magnetite nanoparticles; (b) particle size distribution (PSD) histogram and adjusted fit function; (c) HRTEM of a fine particle and (d) DR pattern attributed to the diffraction from the crystal planes of Fe₃O₄ nanoparticles.

(a)

(b)

(c)

(d)