How to simulate an intestine in the laboratory

Drugs undergo a complex testing procedure before they are used. This process often involves tests on animals. Among other things, it is important to know how drugs can pass through the cell walls of the intestine into the blood. In order to be able to simulate this process in laboratory experiments, we have developed a transistor based on organic materials. With this transistor, the permeability of cell layers can be measured by measuring ionic currents in our experimental setup.