Figure 1.

The studied copper oxide dressings. The antibacterial wound dressings with copper oxide (COD) are sterile wound dressings composed of an internal absorbent layer and one (left panel) or two (right panel) external nonwoven layers, with or without an adhesive contour. The external layer(s) are made of polypropylene nonwoven fabric, and the internal layer is made of a needle punch layer made of polyester and hydrofibers. The wound dressings achieve at least 800% weight/weight fluid absorbency. Both the internal and external layers are impregnated with copper oxide microparticles. The one or two external layers cover the internal layer from one or both sides, accordingly, and are applied directly to the wound.