| 摘要 |
The present invention relates to materials for use as or in wound dressings. In particular, the present invention relates to a multilayer material for use as or in a wound dressing and to methods of making the multilayer material. The multilayer material comprises first and second layers comprising a chitosan and/or a chitosan derivative and a third layer located between the first and second layers comprising a reinforcing material, wherein one or more of the layers further comprises a physiologically acceptable acid. The reinforcing material may be non-absorbent, such as viscose or may be absorbent, for example poly(vinyl alcohol) (PVA), poly(ethylene oxide) (PEO) or poly(acrylic acid). The exemplified physiologically acceptable acid is lactic acid, which may be added to either the chitosan layers or the reinforcing layer. Also claimed is a method of manufacturing a multilayered material and the use of the material in absorbing fluid discharged from a physiological site. |
