多功能Fe3O4/TaO(x) 核心/外纳米粒子用于同时磁共振成像和X射线计算机断层扫描
Nohyun Lee1, Hye Rim Cho, Myoung Hwan Oh
1World Class University Program of Chemical Convergence for Energy & Environment, Institute of Chemical Processes, and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea.
Journal of the American Chemical Society
|June 9, 2012
概括
研究人员开发了新的氧化铁/氧化纳米颗粒,用于增强多式联络成像. 这些生物相容的纳米粒子使得计算机断层扫描和磁共振成像能够同时进行详细的瘤血管可视化.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 医疗成像医学成像
背景情况:
- 多式成像技术通过整合来自各种技术的互补数据,提供卓越的诊断准确性.
- 开发多功能纳米粒子是推进有针对性和有效的诊断工具的关键.
研究的目的:
- 为了合成新的核心/外纳米颗粒,将磁性和无线电不透明的特性结合起来,用于多式成像.
- 评估合成纳米颗粒的生物相容性和循环时间.
- 通过计算机断层扫描和磁共振成像来证明这些纳米粒子在可视化瘤血管系统方面的能力.
主要方法:
- 一个sol-gel反应涉及(V) 乙氧化物和Fe(3) O(4) 纳米颗粒在一个微乳液.
- 多功能Fe(3) O(4) /TaO(x) 核心/外纳米颗粒的合成.
- 在临床前的模型中,纳米颗粒的静脉注射.
- 使用计算机断层扫描 (CT) 和磁共振成像 (MRI) 的成像分析.
主要成果:
- 成功合成了生物相容的Fe(3) O(4) /TaO(x) 核心/外纳米颗粒,具有长期循环.
- 使用CT显示了与瘤相关的血管系统的可视化.
- 使用MRI揭示了瘤内不同的高和低血管区域.
结论:
- 开发的Fe ((3) O ((4) /TaO ((x)) 纳米粒子对于多式成像是有效的.
- 这些纳米粒子有助于全面的瘤血管特征.
- 这种方法有望改善癌症诊断和治疗监测.
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