01898nas a2200289   4500008004100000020002200041245011100063210006900174260012200243520086400365653000801229653001201237653000901249653001901258653001901277100002501296700001901321700001401340700001901354700002201373700001801395700001801413700001301431700002101444700001601465856012701481       2014                        eng d  a978-0-7354-1225-500aElectrokinetic properties of PMAA functionalized NiFe2O4 nanoparticles synthesized by thermal plasma route0 aElectrokinetic properties of PMAA functionalized NiFe2O4 nanopar  a2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USAbBoard Res Nucl Sci; Dept Atom Energy; Govt IndiacDEC3 a<p>The magnetic nickel ferrite (NiFe2O4) nanoparticles with an average size of 30nm were synthesised by Transferred arc DC Thermal Plasma route. The synthesized nickel ferrite nanoparticles were characterized by TEM and FTIR techniques. The synthesized nickel ferrite nanoparticles were further functionalized with PMAA (polymethacrylic acid) by self emulsion polymerization method and subsequently were characterized by FTIR and Zeta Analyzer. The variation of zeta potential with pH was systematically studied for both PMAA functionalized (PNFO) and uncoated nickel ferrite nanoparticles (NFO). The IEP (isoelectric points) for PNFO and NFO was determined from the graph of zeta potential vs pH. It was observed that the IEP for NFO was at 7.20 and for PNFO it was 2.52. The decrease in IEP of PNFO was attributed to the COOH functional group of PMAA.</p>
10aIEP10aNiFe2O410aPMAA10aThermal plasma10aZeta potential1 aBhosale, Shivaji, V.1 aMhaske, Pravin1 aKanhe, N.1 aNavale, A., B.1 aBhoraskar, S., V.1 aMathe, V., L.1 aBhatt, S., K.1 aMurli, C1 aBhattacharyya, D1 aGadkari, SC  uhttps://library.ncl.res.in/content/electrokinetic-properties-pmaa-functionalized-nife2o4-nanoparticles-synthesized-thermal02705nas a2200217   4500008004100000022001400041245013000055210006900185260007400254300000800328490000700336520185900343100002502202700002202227700002202249700002102271700002602292700001802318700002102336856013002357       2015                        eng d  a0957-453000aMicro-structural analysis of NiFe2O4 nanoparticles synthesized by thermal plasma route and its suitability for BSA adsorption0 aMicrostructural analysis of NiFe2O4 nanoparticles synthesized by  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcAUG  a2160 v263 a<p>The paper presents the experimental studies pertaining to the adsorption of bovine serum albumin (BSA) on the nanoparticles of nickel ferrite (NiFe2O4) with a view of correlating the adsorption properties to their microstructure and zeta potentials. Physical properties of two kinds of nickel ferrites, one synthesized by thermal plasma route and the other by chemical co-precipitation method, are compared. Maximum adsorption (231.57 lg/mg) of BSA onto nickel ferrite nanoparticles, at body temperature (37 degrees C) was observed at pH-value of 5.58 for the thermal plasma synthesized particles showing its higher adsorption capacity than those synthesized by wet chemical means (178.71 mu g/mg). Under the same physical conditions the value of zeta potential, obtained for the former, was higher than that of the latter over a wide range of pH values (3.64-9.66). This is attributed to the differences in the specific surface energies of the two kinds of nanoparticles arising from the degree of crystallinity. The paper presents the experimental evidence for the single crystalline nature of the individual nanoparticles, with mean size of 32 nm, for the thermal plasma synthesized particles as evidenced from the high resolution transmission electron microscopy and electron diffraction analysis. The measurements also reveal the poor crystalline morphology in the chemically prepared particles (mean size of 28 nm) although the X-ray diffraction patterns are not much different. The atomic force microscopy images confirm that the surfaces of plasma synthesized nanoparticles possesses higher surface roughness than that of chemically synthesized one. Presence of adsorbed protein was confirmed by vibrational spectroscopy. The Langmuir adsorption model is found to fit into the experimental data better than the Freundlich adsorption model.</p>1 aBhosale, Shivaji, V.1 aKanhe, Nilesh, S.1 aBhoraskar, S., V.1 aBhat, Suresh, K.1 aBulakhe, Ravindra, N.1 aShim, Jae-Jin1 aMathe, Vikas, L.  uhttps://library.ncl.res.in/content/micro-structural-analysis-nife2o4-nanoparticles-synthesized-thermal-plasma-route-and-its-1