Method and device for cultivating eucaryotic microorganisms or blue algae, and biosensor with cultivated eucaryotic microorganisms or blue algae

A method for cultivating eukuryotic microorganisms or blue algae, the method comprising:

• applying the eukaryotic microorganisms or blue algae to a first major surface of a sheet-shaped perforated support, wherein the sheet-shaped perforated support is essentially impermeable to the eukaryotic microorganisms or blue algae and wherein the eukaryotic microorganisms or blue algae remain immobilized on the first major surface and are adapted to be removed;
• supplying an aqueous solution to a second major surface of the sheet-shaped perforated support, wherein the aqueous solution flows along the second major surface of the sheet-shaped perforated support and wherein a portion of the aqueous solution flowing along the second major surface of the sheet-shaped perforated substrate is essentially transported by capillary forces from the second major surface to the first major surface through the sheet-shaped perforated support;
• and
• growing the eukaryotic microorganisms or blue algae on the first major surface of the sheet-shaped perforated support.