Large-area antimony telluride (Sb2Te3) thin films are grown by a metal organic chemical vapor deposition technique on 4” Si(111) substrates, and their topological character probed magnetoconductance measurements. When interfaced with Fe films, broadband ferromagnetic resonance spectroscopy (BFMR) shows clear increase of the damping parameter in Fe/Sb2Te3 when compared to reference layer, which ...

The putative [6Fe-6S] prismane cluster in the 6-Fe/S-containing protein from Desulfovibrio vulgaris, strain Hildenborough, has been enriched to 80% in "Fe, and has been characterized in detail by S, X-, Pand Q-band EPR spectroscopy, parallel-mode EPR spectroscopy and high-resolution 57Fe Mossbauer spectroscopy. In EPR-monitored redox-equilibrium titrations, the cluster is found to be capable of...

Background. The modern concept of acute leukemia therapy involves stratification patients into prognostic risk groups and a differentiated approach to treatment based on factors. However, antitumor treatment, including cytostatics, targeted agents, immunotherapy, cellular technologies, is not always highly effective, especially in with poor prognosis. development new high-tech diagnostic method...

The iron(III)tetraphenylporphyrin chloride Fe(III)TPPCl, iron(III)tetra-naphthylporphyrin Fe(III)TNPCl, ?-oxo-bis[tetraphenylporphyriniron(III)] [(Fe(III)TPP)2O], ?-oxo-bis[tetranaphthylporphyriniron(III)] [(Fe(III)TNP)2O], tin(IV)tetraphenylporphyrin Sn(IV)TPPCl2 and tin(IV)tetra-naphthylporphyrin Sn(IV)TNPCl2 complexes were all found to be adsorbed onto the montmorillonite MMT clay without de...

Mbssbauer and near-infrared spectral measurements have been made on several tourmaline minerals representing both the elbaite-schorl and dravite-schorl series. The specimens were characterized by cell dimension measurements, and by partial chemical analyses by electron microprobe. M'ssbauer data for the iron-bearing specimens further substantiated the presence of ferrous and ferric cations in b...