Structure-Function Relationship of Iron Oxide Nanoflowers: Optimal Sizes for Magnetic Hyperthermia Depending on Alternating Magnetic Field Conditions.

Iron oxide nanoflowers (IONFs) that display singular magnetic properties can be synthesized through a polyol route first introduced almost 2 decades ago by Caruntu et al., presenting a multi-core morphology in which several grains (around 10 nm) are attached together and sintered. These outstanding properties are of great interest for magnetic field hyperthermia, which is considered as a promising therapy against cancer.

Structural and Spectroscopic Studies of NaCuCr(PO): A Noncentrosymmetric Phosphate Belonging to the α-CrPO-Type Compounds.

An electron and joint neutron and X-ray diffraction study of the synthetic copper/chromium phosphate NaCuCr(PO) (NaCuP) is reported. A noncentrosymmetric 2 space group belonging to the well-known α-CrPO type is observed contrary to what is reported in NaMCr(PO) (M = Co and Ni) phosphates. The structural model is validated by bond valence sum analysis and charge-distribution (CHARDI) calculations and supported by complementary infrared and Raman spectroscopy investigations.

Synthesis, characterization and bio-functionalization of magnetic nanoparticles to improve the diagnosis of tuberculosis.

Mycobacterium tuberculosis is the cause of one of the diseases with the highest mortality and morbidity rate in the Americas and in the world. In developing countries, the diagnosis of tuberculosis (TB) is based on baciloscopy and bacteriological cultures. The first method has a low sensitivity, and the second can take several weeks to reach a confirmatory diagnosis.

Anisotropic Metal Deposition on TiO Particles by Electric-Field-Induced Charge Separation.

Deposition of metals on TiO semiconductor particles (M-TiO ) results in hybrid Janus objects combining the properties of both materials. One of the techniques proposed to generate Janus particles is bipolar electrochemistry (BPE). The concept can be applied in a straightforward way for the site-selective modification of conducting particles, but is much less obvious to use for semiconductors.