Research Article
Synthesis of PEG-Iodine-Capped Gold Nanoparticles and Their Contrast Enhancement in In Vitro and In Vivo for X-Ray/CT
Figure 7
X-ray CT in vitro images. Optiray320 was prepared with serially diluted samples in distilled water. The serial samples contained the following amounts of iodine per milliliter: (a) 5.04 × 10−4 mole (943 HU); (b) 2.52 × 10−4 mole (400 HU); (c) 1.26 × 10−4 mole (100 HU); (d) 6.30 × 10−5 mole (41 HU); (e) water; (f) empty tube. The gold concentrations of (g) methoxy PEG-capped AuNPs (177 HU) and (h) methoxy PEG-iodine-capped AuNPs (301 HU) were determined by ICP-MS to be 3.70 × 10−5 mole. Axial images (A) and coronal images (B), respectively.
