Investigating size effects in nanoparticles with Mössbauer and X-ray techniques
A set of samples of iron oxide nanoparticles with an amphiphilic polymer coating (Ocean Nanotech) and an average size in the range of 5–25 nm is investigated using Mössbauer and X-ray techniques. Analysis of the experimental data shows that in some cases, X-ray diffraction does not allow us to correctly determine the particle size, and Mössbauer data are needed to interpret the results correctly.