Abstract An important step in establishing any new metrological method is a prenormative interlaboratory study, designed to verify and validate the against its stated aims. Here, 57 Fe Mössbauer spectrometric ‘centre of gravity’ (COG) was tested as means quantifying magnetite/maghemite (Fe 3 O 4 /γ-Fe 2 ) composition ratio biphasic magnetic nanoparticles. The study involved seven laboratories a...

For application of nanoparticles (NPs) as delivery vectors for biomedical applications the size, charge, surface chemistry and aggregation of the particles are one of key parameters. We focused on characterization of maghemite and cobalt ferrite magnetic NPs by measuring size distribution and zeta potential in different culture media and PBS. We show that our NPs functionalized with PAA are rel...

Functional iron oxide nanoparticles (NP) have been synthesized in a one and a two-step method using a natural functional glycolipid belonging to the family of sophorolipids (SL). These compounds, whose open acidic form is highly suitable for nanoparticle stabilization, are readily obtained by a fermentation process of the yeast Candida bombicola (polymorph Starmerella bombicola) in large amount...

Iron is a micronutrient essential for optimal plant development, nevertheless, due to their low solubility it poorly available plants, affecting many agronomically important crops. Nanofertilizers are nanoparticles that have been used as an alternative the release of micro and macronutrients necessary nutrition. Therefore, in this research we evaluated effect application aqueous suspensions iro...