Sealing configuration with metal-coated structure

A sealing device having a first fluid flow path and being configured for sealingly coupling the first fluid flow path to a second fluid flow path of a second device, the sealing device comprising:

• a support body comprising at least one of an upper surface or a lower surface extending laterally from the first fluid path;
• the upper surface or the lower surface comprising a contact surface comprising a structure configured for increasing a surface pressure when coupling the sealing device to the second device, the structure comprising one or more indentations in the upper surface or the lower surface;
• and
• a metal coating configured for increasing sealing, the metal coating disposed at least on portions of the contact surface between the indentations, wherein:
• the metal coating comprises a material softer than a material of the support body.