Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 119, Issue -, Pages 62-70Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2018.03.034
Keywords
Bismuth; Nanoparticles; Contrast medium; Radiotherapy; X-ray images
Funding
- University of Messina Research&Mobility Project [74893496]
- [P108/12/G108]
Ask authors/readers for more resources
Bismuth nanoparticles were obtained by laser ablation in water and characterized by using different physical techniques. Their shape, estimated by SEM measurements, was approximately spherical with an average diameter of about 25 nm, and a solution concentration of about 0.8 mg/ml was prepared. The formation of pure Bi nanoparticles was also confirmed by micro-Raman spectra which showed the characteristic first order Raman modes of rhombohedral bismuth. The presence of this phase was also supported by the XRD pattern. The EDX analysis indicated that the as-prepared nanoparticles contained Bi metallic element. The high Z of the nanoparticles in the solution shows effects of surface plasmon resonance in the near ultraviolet and visible regions, high mass absorption coefficient for X-ray interaction and high electronic and nuclear stopping powers for electron and ion beams. Such biocompatible solution can be injected in living systems, such as mice, in order to study the presence of uptake in different organs with high contrast spatial localization in the tissues where Bi nanoparticles are confined. The results indicate that Bi nanoparticles can be employed as high contrast medium for high resolution imaging in biological systems as well as target for exposition to ionizing radiation during radiotherapy or to visible light during hyperthermia of diseased cells.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available