. . . "Such materials may include e.g. polymers, plastics, resins, metals including metal alloys, metal oxides, inorganic glasses etc. as long as the contact angle between liquid and surface is larger than 90 degrees (i.e hydrophobic for water) Particular polymeric materials may include for example polyethylene, polypropylene, such as high-density polypropylene, polytetrafluoroethylene, polymethylmethacr" . . .