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高等学校化学研究 ›› 2019, Vol. 35 ›› Issue (3): 537-541.doi: 10.1007/s40242-019-8327-y

• Articles • 上一篇    下一篇

One-pot Synthesis of PEGylated Gd-based Nanoparticles as High-performance and Biocompatibility Contrast Agents for T 1-Weighted Magnetic Resonance Imaging In vivo

HUANG Sa, HAN Qinghe, WANG Lei, GONG Tingting, YUAN Qinghai   

  1. Department of Radiology, the Second Hospital of Jilin University, Changchun 130041, P. R. China
  • 收稿日期:2018-10-12 修回日期:2019-01-19 出版日期:2019-06-01 发布日期:2019-03-27
  • 通讯作者: YUAN Qinghai E-mail:yuanqinghai123@sina.com
  • 基金资助:
    Supported by the Scientific Research Fund of Jilin Provincial Education Department, China(No.JJKH20170858KJ), the Spe-cial Fund for Health of Jilin Provincial Department of Finance, China(No.20171559863) and the State Scholarship Fund by the China Scholarship Council(No.201706175109).

One-pot Synthesis of PEGylated Gd-based Nanoparticles as High-performance and Biocompatibility Contrast Agents for T 1-Weighted Magnetic Resonance Imaging In vivo

HUANG Sa, HAN Qinghe, WANG Lei, GONG Tingting, YUAN Qinghai   

  1. Department of Radiology, the Second Hospital of Jilin University, Changchun 130041, P. R. China
  • Received:2018-10-12 Revised:2019-01-19 Online:2019-06-01 Published:2019-03-27
  • Contact: YUAN Qinghai E-mail:yuanqinghai123@sina.com
  • Supported by:
    Supported by the Scientific Research Fund of Jilin Provincial Education Department, China(No.JJKH20170858KJ), the Spe-cial Fund for Health of Jilin Provincial Department of Finance, China(No.20171559863) and the State Scholarship Fund by the China Scholarship Council(No.201706175109).

摘要: Polyethylene glycol modified(PEGylated) NaGdF4(PEG-NaGdF4) nanoparticles as a novel T1-weighted magnetic resonance imaging(MRI) contrast agent was successfully constructed by a one-pot hydrothermal synthesis method. Because of the functionalization of PEG, the nanoprobes had excellent dispersity, excellent stability and high biocompatibility. More importantly, the as-prepared PEG-NaGdF4 nanoprobes revealed the high longitudinal relaxivity value and prominent T1-weighted MRI contrast performance, which was superior to the commercial MRI contrast agents. With the facile synthesis, excellent dispersity, outstanding stability, remarkable contrast performance and high biocompatibility, the PEGylated NaGdF4 nanoparticles brought more opportunities to the new generation of nanoparticulate-based T1-weighted MRI contrast agents in clinic.

关键词: Nanoparticulate contrast agent, Polyethylene glycol, T1-Weighted magnetic resonance imaging, Biocompatibility

Abstract: Polyethylene glycol modified(PEGylated) NaGdF4(PEG-NaGdF4) nanoparticles as a novel T1-weighted magnetic resonance imaging(MRI) contrast agent was successfully constructed by a one-pot hydrothermal synthesis method. Because of the functionalization of PEG, the nanoprobes had excellent dispersity, excellent stability and high biocompatibility. More importantly, the as-prepared PEG-NaGdF4 nanoprobes revealed the high longitudinal relaxivity value and prominent T1-weighted MRI contrast performance, which was superior to the commercial MRI contrast agents. With the facile synthesis, excellent dispersity, outstanding stability, remarkable contrast performance and high biocompatibility, the PEGylated NaGdF4 nanoparticles brought more opportunities to the new generation of nanoparticulate-based T1-weighted MRI contrast agents in clinic.

Key words: Nanoparticulate contrast agent, Polyethylene glycol, T1-Weighted magnetic resonance imaging, Biocompatibility