The prepared particles were analysed at "Nargund College of Pharmacy, Bangalore" using the Horiba SZ-100 nanoparticle size analyser. The literature review suggested that the iron oxide nanoparticles are to be in the size range below 100 nm. The SZ-100 works on the principle of dynamic light scattering (DLS). DLS is the measurement of fluctuations in scattering light intensity with respect to time. These fluctuations arise due to the presence of Brownian movement of the nanoparticles in the suspension. The statistical behaviour of these fluctuations in scattering intensity can be related to the diffusion of particles. Larger particles diffuse slower than smaller ones and thus we can relate them to the particle size.