Simulation and experimental results of optical and thermal modeling of gold nanoshells.
Mater Sci Eng C Mater Biol Appl
; 42: 185-91, 2014 Sep.
Article
in En
| MEDLINE
| ID: mdl-25063109
ABSTRACT
This paper proposes a generalized method for optical and thermal modeling of synthesized magneto-optical nanoshells (MNSs) for biomedical applications. Superparamagnetic magnetite nanoparticles with diameter of 9.5 ± 1.4 nm are fabricated using co-precipitation method and subsequently covered by a thin layer of gold to obtain 15.8 ± 3.5 nm MNSs. In this paper, simulations and detailed analysis are carried out for different nanoshell geometry to achieve a maximum heat power. Structural, magnetic and optical properties of MNSs are assessed using vibrating sample magnetometer (VSM), X-ray diffraction (XRD), UV-VIS spectrophotometer, dynamic light scattering (DLS), and transmission electron microscope (TEM). Magnetic saturation of synthesized magnetite nanoparticles are reduced from 46.94 to 11.98 emu/g after coating with gold. The performance of the proposed optical-thermal modeling technique is verified by simulation and experimental results.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Nanoshells
/
Magnetite Nanoparticles
/
Gold
Language:
En
Year:
2014
Type:
Article