processes are provided for coating the surfaces of objects with hyaluronic acid , its derivatives or other natural or semisynthetic polymers , for applications in the fields of surgery , health care and diagnostics . the processes make it possible to bind such polymers in a stable manner to the surfaces of objects made of a wide range of materials . surfaces treated according to the processes are characterized by a high degree of wettability , and are able to inhibit the adhesion of cells or bacteria present in the biological fluids .