. . . . . . . . . .    ANM 2010     3rd International Conference on Advanced Nano Materials     12-15 September 2010 - Agadir, Morocco Back    Abstract ANMM211 MAGNETIC NANOPARTICLES- SYNTHESIS, PROPERTIES  AND APPLICATIONS John Philip & Baldev Raj SMARTS, NDED, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam-603102, India . Miniaturization of devices due to advancements in nanotechnology led to an increased interest in size dependent physical properties of nanomaterials. Transition metal oxides with spinel structure MFe2O4 (M = Mn, Fe, Co, Ni, Zn, etc.) have attracted considerable interest during the last few decades due to their potential applications in high density storage devices, ferrofluids, microwave absorption, humidity sensor, photo detectors, etc. Suspensions of magnetic nanoparticles in a carrier fluid, popularly known as ferrofluids, have applications in magnetic separation for isolating cells, organelles, proteins and nucleic acids from  complex mixtures. Such fluids have been found to have several fascinating applications such as magneto-optical wavelength filter, optical modulators, nonlinear optical materials, tunable optical fiber filter, optical grating and optical switches.  They have been a subject of intense research in our laboratory during the last one decades. We  tailor magnetic nanoparticles of different types, using various synthesis approaches, and study their size dependent physical properties,  high temperature phase transitions, structural transitions under the influence of magnetic field, thermal properties, rheology,  interparticle forces at nanoscales  etc. During my talk, I would give an overview of research activities on nanomaterials and nanofluids. . © nanoAC . . . . . . . . . .

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