01912nas a2200217   4500008004100000022001400041245012300055210006900178260013200247300001200379490000600391520102900397653002001426653002601446653002401472653001401496653001801510100001501528700002501543856012601568       2011                        eng d  a1475-743500aEffect of inter-particle interactions on the magnetic properties of magnetite nanoparticles after coating with dextran0 aEffect of interparticle interactions on the magnetic properties   aWORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 896, CH-1215 GENEVA, SWITZERLANDbINDERSCIENCE ENTERPRISES LTDcJAN  a907-9150 v83 a<p>Nanoparticles of magnetite (Fe3O4) are synthesised by a coprecipitation method and coated with the biocompatible polymer, dextran. The uncoated and dextran coated magnetite nanoparticles are characterised by powder X-ray diffraction, infrared spectroscopy, transmission electron microscopy, and magnetic measurements. The magnetic properties of the uncoated and coated magnetite nanoparticles are compared to study the effect of inter-particle magnetic interactions on the magnetic characteristics. Absence of magnetic hysteresis at room temperature indicates the superparamagnetic nature of the two samples. Evidence for the effect of reduced inter-particle magnetic interactions is directly obtained from the field dependence of magnetisation at room temperature. The decreased superparamagnetic blocking temperature and the nature and shape of the field cooled magnetisation curve of the dextran coated sample further confirmed that the inter-particle magnetic interactions are completely suppressed after coating.</p>10adextran coating10amagnetic interactions10amagnetic properties10amagnetite10aNanoparticles1 aSreeja, V.1 aJoy, Pattayil, Alias  uhttps://library.ncl.res.in/content/effect-inter-particle-interactions-magnetic-properties-magnetite-nanoparticles-after-0