Low-Load Metal-Assisted Catalytic Etching Produces Scalable Porosity in Si Powders.

The recently discovered low-load metal-assisted catalytic etching (LL-MACE) creates nanostructured Si with controllable and variable characteristics that distinguish this technique from the conventional high-load variant. LL-MACE employs 150 times less metal catalyst and produces porous Si instead of Si nanowires. In this work, we demonstrate that some of the features of LL-MACE cannot be explained by the present understanding of MACE.

Mortality and morbidity among the working population of anthophyllite asbestos miners in Finland.

105-112. A study has been made in Finland of the effects of anthophyllite asbestos on mortality and morbidity of 1 092 asbestos workers first employed at two mines between 1936 and 1969; 95% of workers were traced, 248 of whom had died. A similar number of age-sex-matched controls was selected from a township 60 km from the mines.