Synthesis and structural characterization of CoxFe3−xC (0 ≤ x ≤ 0.3) magnetic nanoparticles for biomedical applications

Herein, cobalt-substituted iron carbide (Co x Fe 3− x C, 0 ≤ x ≤ 0.3) magnetic nanoparticles (15-30 nm) were prepared by a sol-gel assisted route. X-ray diffraction (XRD) and electron diffraction patterns suggested that all the samples had a single phase structure. Furthermore, Mössbauer spectroscop...

Full description

Saved in:
Bibliographic Details
Published in:New journal of chemistry 2019, Vol.43 (8), p.3536-3544
Main Authors: Gangwar, A, Singh, G, Shaw, S. K, Mandal, R. K, Sharma, A, Meena, Sher Singh, Prajapat, C. L, Prasad, N. K
Format: Article
Language:English
Subjects:
Biomedical materials
Diffraction patterns
Electron diffraction
Ferrofluids
Ferrous alloys
Hyperthermia
Iron carbides
Magnetic saturation
Mossbauer spectroscopy
Nanoparticles
Oleic acid
Sol-gel processes
Solid phases
Spectrum analysis
Structural analysis
Substitutes
X-ray diffraction
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Herein, cobalt-substituted iron carbide (Co x Fe 3− x C, 0 ≤ x ≤ 0.3) magnetic nanoparticles (15-30 nm) were prepared by a sol-gel assisted route. X-ray diffraction (XRD) and electron diffraction patterns suggested that all the samples had a single phase structure. Furthermore, Mössbauer spectroscopy validated the monophasic nature of all the Co-substituted iron carbides, except for x = 0.3. The results of Mössbauer spectroscopy for this sample indicated the presence of the Fe-Co alloy along with the carbide phase. The saturation magnetization value was found to decrease with an increase in Co concentration ( x ≤ 0.16); however, it increased for the x = 0.3 sample due to the presence of a secondary phase (Fe-Co alloy). Ferrofluids of the pure and Co-substituted iron carbides in oleic acid exhibited good heating abilities during the magnetic hyperthermia experiment at different external fields. The ferrofluids of pure and Co-substituted iron carbides exhibited heating abilities suitable for bioapplications.
ISSN:1144-0546
1369-9261
DOI:10.1039/c8nj05240a