Research Article
Synthesis of PEG-Iodine-Capped Gold Nanoparticles and Their Contrast Enhancement in In Vitro and In Vivo for X-Ray/CT
Figure 2
UV-visible absorption spectra of the citrate ion-capped AuNPs (solid line), methoxy PEG-capped AuNPs (dotted line) and the methoxy PEG-iodine-capped AuNPs (medium-dashed line).