Title:
SENSOR CARTRIDGE FOR CHEMICAL ASSAYS OF A LIQUID SAMPLE CONTAINING ANALYTE MOLECULES
Document Type and Number:
WIPO Patent Application WO/2018/226097
Kind Code:
A8
Abstract:
Sensor cartridge comprising a wall having an open top end and a lower end and enclosing a space containing porous matrix. The porous matrix is configured for passing analyte molecules of a liquid sample therethrough. A porous collection disk supports and contacts the porous matrix and closes the lower end of the wall. A base cap is attached to the lower end such that the collection disk is sandwiched between the lower end of the wall and the base cap. The sensor cartridge comprises an air channel extending between a first air opening positioned at a top end thereof and a second air opening positioned at a distance above the collection disk. The base cap comprises a base cap air opening positioned opposite the second air opening. The collection disk is positioned between the second air opening and the base cap air opening. At least one of the first air openings and the base cap air opening comprises an air source connection for connecting the cartridge to a source of air under supra-atmospheric pressure or a source of subatmospheric pressure. The second air opening and the base cap air opening are arranged to guide an air flow to specific locations of the porous collection disk for providing localized evaporation in specific spots of the porous collection disk and analyte concentration, as a result of which detection limits are improved.
Inventors:
SALENTIJN GERT IJSBRAND (NL)
HOEKSTRA MARTEN HERRE (NL)
HOEKSTRA MARTEN HERRE (NL)
Application Number:
PCT/NL2018/050369
Publication Date:
March 21, 2019
Filing Date:
June 07, 2018
Export Citation:
Assignee:
UNIV GRONINGEN (NL)
International Classes:
B01L3/00; G01N1/40; G01N33/48
Attorney, Agent or Firm:
JANSEN, C.M (NL)
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