Passive fluidic connection between two hydrophilic substrates

A capillary driven microfluidic system, the system comprising:

• a first substrate comprising at least one microfluidic channel ending in an opening and at least one protruding element adjacent to the opening;
• and
• a second substrate comprising at least one open cavity,
• wherein the at least one protruding element and the at least one open cavity each comprise at least one hydrophilic surface,
• wherein the at least one protruding element and the at least one open cavity are adapted for engaging with one another for providing transfer of a fluid from the opening towards an outer surface of the at least one protruding element of the first substrate to the at least one open cavity of the second substrate via capillary forces,
• wherein a space is present between the at least one hydrophilic surface of the at least one protruding element and the at least one hydrophilic surface of the at least one open cavity, and
• wherein a separation between the at least one hydrophilic surface of the at least one protruding element and the at least one hydrophilic surface of the at least one open cavity is such that the capillary forces are generated on the fluid upon entering inside the space.