What is it about?
Co1−xMnxFe2O4(x=0.2, 0.4, 0.6, 0.8, 1.0)magnetic nanoparticles were prepared using amodified citrate gel method andfired at 500°C for 2 h. The modified Stöber method was used forcoating the magnetic nanoparticles with a silica shell. The effects of Mn2+substitution and themethod of preparation on the formation of crystalline phases, particle size, morphology and theoptical and magnetic properties of the synthesized materials were investigated by XRD, SAED,HR-TEM, EDX, UV/VIS double-beam spectrophotometry and vibrating sample magnetometry.The average crystallite size of the synthesized nanoparticles was 18.6–43.9 nm. The maximumvalue of saturation magnetization(Ms)achieved was 65.668 emu/g for Mn0.2Co0.8Fe2O4nanoparticles. Diffuse reflectance increased with an increase of Mn2+content and SiO2shell.These coated magnetic nanoparticles are promising materials for application to magnetic sensorsand biomedical nanodevices
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Why is it important?
These coated magnetic nanoparticles are promising materials for application to magnetic sensorsand biomedical nanodevices.
Perspectives
Writing this article was a great pleasure as it has co-authors with whom I have had long standing collaborations. This article also lead to rare disease groups contacting me and ultimately to a greater involvement in rare disease research.
Kamal Awad
University of Texas at Arlington
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This page is a summary of: Effect of Mn2+ doping and SiO2 coating on magneto-optical properties of CoFe2O4 nano-particles, Smart Materials and Structures, September 2015, Institute of Physics Publishing,
DOI: 10.1088/0964-1726/24/11/115002.
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