In the presence of exudate, the PROMOGRAN PRISMA Matrix transforms into a soft, conformable, biodegradable gel, and thus allows contact with all areas of the wound. PROMOGRAN PRISMA Matrix, when covered with a semi-occlusive dressing, maintains a physiologically moist microenvironment at the wound surface. This environment is conducive to granulation tissue formation, epithelialization and optimal wound healing. PROMOGRAN PRISMA Matrix provides an effective antibacterial barrier as demonstrated by the in-vitro reduction of bacterial growth with common wound pathogens such as, Pseudomonas aeruginosa, Staphylococcus aureus, Eschericia coli and Streptococcus pyogenes.