The present book relates to the scientific records of a workshop held in Patras, Greece, in June 1989, under the auspices and with financial support of the European Economic Communities (Concerted Action EUROBIOMAT - Hemocompatibility - of the Medical Research Programme, Project: 11.1.212). This concerted action promotes the collaboration on science and technology on the particular field of hemocompatible biomaterials: exchange of experts, scholarships and scientific workshops within the EC-member countries and COST countries such as Sweden, Finland, Turkey, Switzerland. The first part of this monography refers to the oral presentations of the par­ ticipants. The second part gives the book its unique character: the scientific