Hyaluronic acid stabled iodine-containing nanoparticles with Au nanoshell coating for X-ray CT imaging and photothermal therapy of tumors
作者：Xinghua Liu, Junheng Gu, Yunfang Jiang, Xinlin Yang, Shaoyong Li, Tong An, Hongquan Duan, Jingwei
關鍵字：gold nanoshell, iodine-containing nanoparticles, computed tomography,
論文來源：期刊
具體來源：ACS Appl Mater Interfaces DOI: 10.1021/acsami.6b11918
發表時間：2016年
In recent years, considerable efforts have been made for the development of multifunctional nanoparticles with diagnosis and therapy functions. To achieve enhanced CT imaging and photothermal therapy on the tumor, we employed iodinated nanoparticles as template to construct Au nanoshell structure and demonstrated a facile but effective approach to synthesize biocompatible and well-dispersed multifunctional nanoparticles by coating iodinated nanoparticles with Au nanoshell and subsequent surface modification by hyaluronic acid. The resultant poly(2-methacryl(3-amide-2,4,6-triiodobenzoic acid))/polyethylenimine/Au naoshell/hyaluronic acid (PMATIB/PEI/Au nanoshell/HA) nanoparticles had relatively high X-ray attenuation coefficient and photothermal efficiency. After intravenous injection into MCF-7 tumor-bearing mice, PMATIB/PEI/Au nanoshell/HA nanoparticles were efficiently accumulated in the tumor, remarkably enhanced the tumor CT imaging, and selectively ablated the tumor through the thermal treatment of lesions under the NIR irradiation. Thus, PMATIB/PEI/Au nanoshell/HA nanoparticles displayed a great potential for CT diagnosis and CT-guided, focused photothermal tumor therapy.