Abstract: An ingestible device for sampling material at least one time is provided. The ingestible device includes a first chamber that is enlargeable in volume and that includes an inlet, and that can be filled with the material to be sampled, a second chamber that is diminishable in volume and that includes an outlet, and a reversible actuating mechanism. The reversible actuating mechanism is configured such that triggering the reversible actuating mechanism leads to an enlargement of the first chamber to collect the material to be sampled through the inlet and also leads to a diminishment of the second chamber.

Abstract: A device for amperometric sensing comprises: an enclosing structure defining a sensing volume and comprising at least one circumferential wall, wherein the enclosing structure defines an inlet in or at an end of the circumferential wall for allowing a target analyte to enter the sensing volume, an electrode arranged in the sensing volume and displaced from the inlet; and a read-out circuitry connected to the electrode and configured for read-out of an electrical signal from the electrode within a time frame during which a target analyte depletion layer around the electrode expands along the circumferential wall and is substantially contained within the sensing volume, wherein the electrical signal is representative of a concentration of the target analyte.

Abstract: According to an aspect of the present inventive concept there is provided a device for electrodialysis, comprising: a channel configured for receiving a flow of an electrolyte; a first electrode and a second electrode, wherein the first and second electrode are electrically connected for applying an alternating current voltage; a first ion flow controlling element being configured to allow flow of ions from a second side to a first side, the first ion flow controlling element comprising a first substrate and a first ion-exchange membrane, wherein the first substrate comprises pores; a second ion flow controlling element being configured to allow flow of ions from a second side to the a side, the second ion flow controlling element comprising a second substrate and a second ion-exchange membrane, wherein the second substrate comprises pores.

Abstract: According to an aspect of the present inventive concept there is provided a device for analyzing a characteristic of an analyte in a test liquid, the device comprising: a reservoir configured to hold an analysis liquid, the analysis liquid comprising an analysis compound; a microfluidic channel having a first end and a second end, wherein the first end is arranged in fluid communication with the reservoir, wherein the second end is configured to be in fluid communication with the test liquid; wherein the microfluidic channel is configured to allow mixing, by diffusion, of the analysis compound entering the first end with the analyte entering the microfluidic channel from the second end; and a detector arranged in relation to the microfluidic channel, wherein the detector is configured to detect a property dependent on the mixing of the analysis compound and the analyte, said property being representative of the characteristic of the analyte in the test liquid.

Abstract: An ingestible device for sampling material at least one time is provided. The ingestible device includes a first chamber that is enlargeable in volume and that includes an inlet, and that can be filled with the material to be sampled, a second chamber that is diminishable in volume and that includes an outlet, and a reversible actuating mechanism. The reversible actuating mechanism is configured such that triggering the reversible actuating mechanism leads to an enlargement of the first chamber to collect the material to be sampled through the inlet and also leads to a diminishment of the second chamber.