Abstract:
The invention relates to a microfluidic device comprising an inlet port for liquid, a capillary channel in fluid connection to the inlet port for receiving liquid from the inlet port, the channel having a defined volume. At least one dissolvable valve is provided comprising a dissolvable membrane having a first side oriented towards the capillary channel, and capillary means connected to the second side of the dissolvable membrane such that when the membrane is dissolved by the liquid, liquid is transported through the valve to the second side of the membrane by capillary action. The invention relates to uses of the device, methods of fabricating the device and method of controlling a flow of liquid.
Abstract:
A portable drug sampling device for handheldly collecting a sample from exhaled breath of a subject for further sensor based analysis. The device comprising: a housing (406) comprising at least one inlet (407) and at least one outlet (408) for the exhaled breath to exit through, and a sampling membrane (302) arranged in the housing. A tubular element (40) having a mouthpiece section (401) for the subject to exhale into, and a saliva trap section comprising baffles (103) to create a non-straight gas flow path for letting aerosols pass through the tubular element. The sampling membrane (302) is arranged to collect the aerosols from the exhaled breath. The portable drug testing device further comprises a volume collecting element (208).
Abstract:
Antibody specific for a 5-HTOL compound. A glucuronide with 5-hydroxytryptophol (5-HTOL) characterized in that it comprises the structure of the beta -glucuronide between the 5-hydroxy group of 5-HTOL and D-glucopyranosiduronic acid. An immunoassay and a diagnostic method utilizing the immunoassay wherein a 5-hydroxytryptophol (5-HTOL) compound is determined by the use of an antibody specific for a 5-HTOL compound is used.
Abstract:
A sensor for detecting a drug substance (15) from exhaled breath of a subject in-situ. Its collecting surface has a Surface Enhanced Raman Spectroscopy (SERS)-active layer (14) of a SERS-active material. The collecting surface is arranged as an outer surface of a waveguide (12) for contact with exhaled breath, such that at least traces of said drug substance (15) in said exhaled breath can contact said SERS-active layer for read-out of a Raman shift spectrum.
Abstract:
The invention relates to a microfluidic device comprising an inlet port for liquid, a capillary channel in fluid connection to the inlet port for receiving liquid from the inlet port, the channel having a defined volume. At least one dissolvable valve is provided comprising a dissolvable membrane having a first side oriented towards the capillary channel, and capillary means connected to the second side of the dissolvable membrane such that when the membrane is dissolved by the liquid, liquid is transported through the valve to the second side of the membrane by capillary action. The invention relates to uses of the device, methods of fabricating the device and method of controlling a flow of liquid.
Abstract:
A portable system (10) is disclosed for collecting a sample from exhaled breath of a subject. Drug substance in the exhaled breath are detected or determined. The sample is collected for further analysis using mass-spectroscopy. The system comprises a sampling unit (14) and a housing (12) arranged to hold the sampling unit (14), the sampling unit (14) is adapted to collect non-volatile and volatile compounds of the at least one drug substance from the exhaled breath from the subject. The housing (12) has at least one inlet (15) for the subject to exhale into the housing (12) to the sampling unit (14) and at least one outlet (16) for the exhaled breath to exit through.