Abstract Maghemite nanoparticles prepared with the modified synthesis method published by Sun et al. 2004 and followed filtering to extract a sample of smallest nanoparticle size were investigated. The 2-5 nm monocrystalline multi-twinned morphology without surface shells observed. Superparamagnetic behavior was detected above temperature 40 K. An exchange bias loop shift ~ 2 mT at 3 K after co...

Maghemite and magnetite are proposed as essential components of iron mineral containing sensory dendrites. These dendrites in the inner lining of the upper beak of various bird species [1] are the first candidate structures for an avian magnetic field receptor. Our new concept of magnetoreception based on synchrotron radiation microscopic X-ray-fluorescence analysis (microXRF) and X-ray absorpt...

In this paper we describe the preparation and characterization of magnetic nanocomposites designed for applications in targeted drug delivery. Combining superparamagnetic behavior with proper surface functionalization in a single entity makes it possible to have altogether controlled location and drug loading, and release capabilities. The colloidal vehicles consist of maghemite (γ-Fe2O3) cores...

In this work, an RVC electrode coated with magnetic iron oxide nanoparticles was used for the degradation of methylene blue as a model dye. The electrofenton process carried out by reduction oxygen dissolved in electrolyte on modified to produce hydrogen peroxide. presence magnetite/maghemite structure produces formation OH∙ radicals that oxidize blue. RVC/coated prepared two different methodol...