 Chronic wounds can be categorized into two main groups: a chronic ulcers, such as diabetic foot ulcers, venous leg ulcers and pressure decubitus ulcers b post-operative or traumatic, difficult-to-heal wounds, some of which may be infected such as sternal wound infections following cardiac surgery or wounds following abdominal or orthopedic surgery. Age, peripheral vascular disease, infection, diabetes mellitus, auto-immune dis., obesity, cardiac disease, cardiac failure, malnutrition, immunological deficiencies, steroid treatment, bed confinement and prolonged operation time are among the causes of wound repair delay or failure and often results in considerable morbidity and mortality. In addition, these wounds lengthen hospital stays, significantly increase the cost of care, and negatively impact the quality of life of both the patients and care giversCurrently available wound care products include various dressings, ointments, gels, antiseptic agents and devices. These products are intended to supply a suitable environment for wound healing e.g. moist environment, particular factors required for the healing process, but they do not provide an adequate solution for this growing problem of chronic wounds. 