A gel is a form of matter intermediate between a solid and a liquid. It consists of polymers, or long-chain molecules, crosslinked to create a tangled network and immersed in a liquid medium. The properties of the gel depend strongly on the interaction of these~ocomponents.The liquid prevents the polymer network from collapsing into a compact mass; the network prevents the liquid from flowing away’. The physicochemical nature of gels plays an important role in biological processes (cytoplasma etc). The structural simi- larity of living tissue to gels led to the development of the first biomaterials 20 years ago. During examinations of these new materials e.g. of their biocompatibility in medical and surgical use, many undesired effects could be observed’. These findings therefore produced the following demands from biomaterials: (a) a structure containing a desired water content; (b) inertness to normal biological processes (inclu- ding resistance to the degradation of the polymer and to reactions unfavourable to the organism); (c) permeability to metabolites. Materials with these properties must have hydrophilic groups, and a three-dimensional structure*. As a conse- quence of the investigations and developments in the field of synthetic biomaterials the possibility of using biomaterial hydrogels as wound dressings was considered3,4. The changing of traditional dressings such as gauze is very painful for patients, and consequently an interruption of the natural healing process is inevitable. Sincean ideal dressing should temporarily perform the protective functions of the epidermis while tissue repair and granulation are going on and the living layer of epidermal cells is being replaced the use of hydrogel as a wound covering material was considered.