With the rise of nanotechnology, inorganic nanomaterials have been developed, which have a marked microbicide effect on a wide variety of microorganisms, such as viruses, bacteria and fungi. In the present work, the synthesis, characterization and study of the antimicrobial activity of copper oxide (I), cuprite, Cu2 O, obtained by chemical route was carried out. Copper sulfate pentahydrate was used as the precursor ascorbic acid and glucose, were used as organic reducers. The characterization was carried out by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The in vitro antimicrobial activity of the cuprite particles on the Staphylococcus aureus bacterium was also determined, determining the Minimum Inhibitory Concentration (MIC). The results of the analysis by X-ray diffraction, confirmed that from the synthesis using ascorbic acid as a reducer and at pH = 1.66, 100% pu...

This article describes a general vision about the use of the Cyclosizer used mainly for the realization o experimental tests of metallic and non metallic minerals in the processing of minerals such as: gold bearing minerals and dolomite minerals, respectively. The cyclosizer is an elutriator that separates a specimen in specifically sized fractions using a technique that depends on the forces produced by the relative speed of the particles and the elutriation fluid. It is different from a conventional elutriation where the elutriation action takes place in a hydraulic cyclone where the fluid is spinning and the centrifuge forces are acting on the particles due to the gravity. The fluid models in the cyclone are stable and the changes in the condition of the atmosphere are not as critical as in the case of the conventional processing for elutriation. Also, the high cutting forces that are...

This article describes a general vision about the use of the Cyclosizer used mainly for the realization o experimental tests of metallic and non metallic minerals in the processing of minerals such as: gold bearing minerals and dolomite minerals, respectively. The cyclosizer is an elutriator that separates a specimen in specifically sized fractions using a technique that depends on the forces produced by the relative speed of the particles and the elutriation fluid. It is different from a conventional elutriation where the elutriation action takes place in a hydraulic cyclone where the fluid is spinning and the centrifuge forces are acting on the particles due to the gravity. The fluid models in the cyclone are stable and the changes in the condition of the atmosphere are not as critical as in the case of the conventional processing for elutriation. Also, the high cutting forces that are...