Research Article

Synthesis of PEG-Iodine-Capped Gold Nanoparticles and Their Contrast Enhancement in In Vitro and In Vivo for X-Ray/CT

Figure 1

Synthetic scheme of methoxy PEG-iodine-capped AuNPs. First, the initial Au0 atoms generated using the citrate reduction method were assembled to form stabilized citrate ion-capped AuNPs. Second, the colloidal gold nanoparticles were reacted with iodide ions in sodium iodide solution. Finally, methoxy PEG-SH was added to the iodine-capped AuNPs solution, and AuNPs was stabilized by methoxy PEG-SH.
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