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- SURFACE-MODIFIED TANTALUM OXIDE NANOPARTICLES PREPARATION METHOD THEREOF AND CONTRAST MEDIUM FOR X-RAY COMPUTED TOMOGRAPHY AND HIGHLY DIELECTRIC THIN FILM USING SAME
- SURFACE-MODIFIED TANTALUM OXIDE NANOPARTICLES PREPARATION METHOD THEREOF AND CONTRAST MEDIUM FOR X-RAY COMPUTED TOMOGRAPHY AND HIGHLY DIELECTRIC THIN FILM USING SAME
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机译：-表面改性氧化钽纳米粒子的制备及其与X射线计算机断层扫描和高介电薄膜的对比介质的比较
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摘要
The present invention relates to a surface-modified tantalum oxide nanoparticle, a method for producing the same, a contrast agent for X-ray computed tomography using the same, and a high dielectric film. More particularly, the present invention relates to a method for preparing a water-in-oil microemulsion by adding an aqueous phase containing water to an organic solvent containing surface-modified tantalum oxide nanoparticles and (i) a surfactant, (ii) (Iii) introducing a tantalum precursor into the microemulsion, (iii) adding a surface modifier containing an organosilane group or a phosphine group to the solution obtained in the step (ii) And (v) separating the surface-modified tantalum oxide nanoparticles from the mixture obtained in the step (iv). 2. A method for producing a surface-modified tantalum oxide nanoparticle, comprising the steps of: And a contrast agent and a high dielectric film for X-ray computed tomography using the same.
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