Abstract: The present invention provides a composite material comprising fibrinogen or fibrin, or a mixture thereof, and a bioactive glass. The invention also relates to wound dressings and pharmaceutical compositions containing the composite material. Further aspects of the invention relate to the use of the composite material of the for treating a wound, treating or preventing bacterial infections in a wound, preventing or alleviating bleeding in a wound, sterilising a wound, controlling haemorrhaging, increasing the rate of coagulation of blood and/or activating a coagulation system in a wound.