Insight into Antimicrobial Properties via Self-Acidification of Compounds from the Molybdenum-Tungsten-Oxygen System.

This communication is focused on the synthesis, characterization and experimental proof of the mechanism of antimicrobial activity of powders from the molybdenum-tungsten-oxygen (Mo-W-O) system. Materials with a discrete ratio of Mo/W ranging from 100% MoO to 100% WO with a stepwise increase of 5-10 wt % W were synthesized by the spray drying method following calcination. Spherical hollow particles with a broad size distribution were formed and the composition influenced the crystalline phases in such a way that either pure and/or mixed oxides (MoWO) were obtained.