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Your search keyword '"R. Prabakaran"' showing total 3 results
Start Over Author "R. Prabakaran" Journal journal of nanoscience and nanotechnology
3 results on '"R. Prabakaran"'

1. Synthesis and Magnetic Characterizations of La1−xSrxMnO3 Nanoparticles for Biomedical Applications

Author

T. Holloway, Messaoud Bahoura, Rakhimov Rr, Govindarajan T. Ramesh, Aswini K. Pradhan, Bah R, J. Pradhan, R. Prabakaran, and Kai Zhang

Subjects
Materials science, Scanning electron microscope, Biomedical Engineering, Nanoparticle, Bioengineering, General Chemistry, engineering.material, Condensed Matter Physics, Ferromagnetic resonance, Magnetization, Laser linewidth, Chemical engineering, Coating, engineering, General Materials Science, human activities, Ball mill, Superparamagnetism
Abstract

The La(1-x)Sr(x)MnO3 (LSMO) nanoparticles have been synthesized by citric gel process followed by ball milling method. These nanoparticles demonstrated high crystalline quality. Nanoparticle size was further decreased by ball milling technique as observed by the field-emission scanning electron microscopic studies. The ball milled and silica coated LSMO nanoparticles show magnetic transition at about 370 K with a superparamagnetic properties. The ferromagnetic resonance (FMR) spectra analysis of LSMO nanoparticles shows large FMR linewidth due to the surface strain of the nanoparticles. Both magnetization and FMR studies demonstrate that the LSMO nanoparticles are highly anisotropic. The toxicity of the nanoparticles was studied for safe biomedical applications. Measurement of intracellular reactive oxygen species (ROS) and MTT assay results show that LSMO nanoparticles are relatively nontoxic and the toxicity is further reduced by SiO2 coating. These results are very important for applications in the field of biotechnology.

Published
2010

2. Synthesis and magnetic characterizations of La(1-x)Sr(x)MnO3 nanoparticles for biomedical applications

Author

K, Zhang, T, Holloway, J, Pradhan, M, Bahoura, R, Bah, R R, Rakhimov, A K, Pradhan, R, Prabakaran, and G T, Ramesh

Subjects
Cell Survival, Metal Nanoparticles, Biocompatible Materials, Oxides, Silicon Dioxide, Magnetics, Manganese Compounds, X-Ray Diffraction, Lanthanum, Strontium, Materials Testing, Microscopy, Electron, Scanning, Humans, Nanotechnology, Particle Size, Cells, Cultured
Abstract

The La(1-x)Sr(x)MnO3 (LSMO) nanoparticles have been synthesized by citric gel process followed by ball milling method. These nanoparticles demonstrated high crystalline quality. Nanoparticle size was further decreased by ball milling technique as observed by the field-emission scanning electron microscopic studies. The ball milled and silica coated LSMO nanoparticles show magnetic transition at about 370 K with a superparamagnetic properties. The ferromagnetic resonance (FMR) spectra analysis of LSMO nanoparticles shows large FMR linewidth due to the surface strain of the nanoparticles. Both magnetization and FMR studies demonstrate that the LSMO nanoparticles are highly anisotropic. The toxicity of the nanoparticles was studied for safe biomedical applications. Measurement of intracellular reactive oxygen species (ROS) and MTT assay results show that LSMO nanoparticles are relatively nontoxic and the toxicity is further reduced by SiO2 coating. These results are very important for applications in the field of biotechnology.

Published
2010

3. Synthesis and magnetic characterizations of La(1-x)Sr(x)MnO3 nanoparticles for biomedical applications.

Author

Zhang K, Holloway T, Pradhan J, Bahoura M, Bah R, Rakhimov RR, Pradhan AK, Prabakaran R, and Ramesh GT

Subjects
Biocompatible Materials chemical synthesis, Biocompatible Materials chemistry, Cell Survival drug effects, Cells, Cultured, Humans, Lanthanum, Magnetics, Manganese Compounds, Materials Testing, Metal Nanoparticles toxicity, Microscopy, Electron, Scanning, Nanotechnology, Oxides, Particle Size, Silicon Dioxide, Strontium, X-Ray Diffraction, Metal Nanoparticles chemistry, Metal Nanoparticles ultrastructure
Abstract

The La(1-x)Sr(x)MnO3 (LSMO) nanoparticles have been synthesized by citric gel process followed by ball milling method. These nanoparticles demonstrated high crystalline quality. Nanoparticle size was further decreased by ball milling technique as observed by the field-emission scanning electron microscopic studies. The ball milled and silica coated LSMO nanoparticles show magnetic transition at about 370 K with a superparamagnetic properties. The ferromagnetic resonance (FMR) spectra analysis of LSMO nanoparticles shows large FMR linewidth due to the surface strain of the nanoparticles. Both magnetization and FMR studies demonstrate that the LSMO nanoparticles are highly anisotropic. The toxicity of the nanoparticles was studied for safe biomedical applications. Measurement of intracellular reactive oxygen species (ROS) and MTT assay results show that LSMO nanoparticles are relatively nontoxic and the toxicity is further reduced by SiO2 coating. These results are very important for applications in the field of biotechnology.

Published
2010
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