Bioresistance of foam-glass crystal materials to filamentous fungi

The bioresistance of foam-glass crystal materials is studied. These materials are resistant to the mold fungi Aspergillus niger. Mold fungi have an adverse effect on the moisture sorption of a material, which increases after biological action but remains within acceptable limits (≤ 2.5 %). The effect of mold fungi on the structural changes in the surface layer of the material is corroborated by IR spectroscopy. The particle size of the crystalline phase, and not the amount, plays the leading role in microdamage to interpore barriers.