Abstract
An in-depth analysis of the morphology of Au nanorod/SiO2 nanocapsules was performed by scanning transmission electron microscopy (STEM) imaging, secondary electron (SE) imaging, bright-field (BF) imaging, and high-angle annular dark-field (HAADF) imaging. These detailed analyses and high X-ray computerized tomography (CT) values provided key information for the administration of Au nanorod/SiO2 nanocapsules into the blood of mice. Au, which is a heavy element, exhibits a high X-ray CT value. STEM images were recorded to clearly analyze the morphology of the Au nanorods and Au nanorod/SiO2 nanocapsules. The results obtained from SE images, BF images, and HAADF images revealed that Au nanorods are covered by SiO2 and that Au nanorod/ SiO2 nanocapsules are highly dispersed. Furthermore, 3D tomography reconstruction was performed by using STEM observation. Three-dimensional tomography reconstruction revealed a spatial structure and provided highly reliable information on the Au nanorod/SiO2 nanocapsules developed in this study.
Original language | English |
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Pages (from-to) | 210-214 |
Number of pages | 5 |
Journal | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
Volume | 66 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2019 |
Keywords
- 3D tomography
- Au nanorod
- Nanocapsule
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Metals and Alloys
- Materials Chemistry