Abstract: An electrochemical device for diagnostic purposes, and particularly point-of-care diagnostic purposes, is capable of detecting quorum sensing molecules, such as AHL, within a biological sample with high precision. The device includes at least one reference electrode (RE), at least one counter electrode (CE), and two or more working electrodes (WEs). Each working electrode differs from the other working electrode(s) with respect to at least one of the following characteristics: surface area, size, material, and coating. The device also has a sample receiving area for receiving a biological sample, wherein the electrodes and the sample receiving area is fluidly connected, and a means for transferring the sample to the electrodes for measurement, and a means for displaying a result of the measurement.

Abstract: The invention is directed to a microfluidic unit (101) for isolating and culturing yeast cells. This microfluidic unit (101) comprises a medium inlet, a medium outlet, a passage interconnecting the inlet and outlet, and in the passage a single cell trapping chamber (109). Moreover, this microfluidic unit (101) comprises further in the passage a daughter cells trapping chamber (111), this chamber (111) is placed downstream of the single cell trapping chamber (109), and configured for retaining the daughter cells while allowing offspring of these daughter cells to escape with a flow of the medium in the passage.

Abstract: For diagnostic purposes, and particularly point-of-care diagnostic purposes, there is a need for devices capable of detecting quorum sensing molecules such as AHL within a biological sample with high precision, and which furthermore are fast and simple to use. The present invention relates to an electrochemical device, comprising: 5 —at least one reference electrode (RE), —at least one counter electrode (CE), —two or more working electrodes (WEs), wherein each working electrode differ from the other working electrode(s) with respect to at least one of the following characteristics: surface area, 10 size, material, and coating, —a sample receiving area for receiving a biological sample, wherein the electrodes and the sample receiving area is fluidly connected —means for transferring the sample to the electrodes for measurement, and —means for displaying a result of the measurement.

Abstract: A method of manipulating an organic nanostructure is disclosed. The method comprises: contacting a liquid sample having the organic nanostructure therein with an arrangement of electrodes, and applying voltage to the arrangement of electrodes to manipulate and immobilize the organic nanostructure over the electrodes by electrokinetics.