Dual-sensor detection of reflectance signals for thin-film based assays

    公开(公告)号:US11867634B2

    公开(公告)日:2024-01-09

    申请号:US17127027

    申请日:2020-12-18

    摘要: The present disclosure is directed to a thin-film element that enables analytes to be analyzed on separate surfaces. In an example, a thin-film element includes a first layer for processing a fluid sample to generate a first analyte and a second analyte. The thin-film element also includes a second layer configured to be impermeable to the first analyte to enable the first analyte to be retained by the first layer and permeable to the second analyte to enable the second analyte to pass through the second layer. The thin-film element further includes a third layer configured to retain the second analyte. The second layer includes a first reflective surface and a second reflective surface to provide reflectance signals indicative of analytes present in the first and third layers to sensors located on opposite sides of the thin-film element.

    DUAL-SENSOR DETECTION OF REFLECTANCE SIGNALS FOR THIN-FILM BASED ASSAYS

    公开(公告)号:US20210190696A1

    公开(公告)日:2021-06-24

    申请号:US17127027

    申请日:2020-12-18

    摘要: The present disclosure is directed to a thin-film element that enables analytes to be analyzed on separate surfaces. In an example, a thin-film element includes a first layer for processing a fluid sample to generate a first analyte and a second analyte. The thin-film element also includes a second layer configured to be impermeable to the first analyte to enable the first analyte to be retained by the first layer and permeable to the second analyte to enable the second analyte to pass through the second layer. The thin-film element further includes a third layer configured to retain the second analyte. The second layer includes a first reflective surface and a second reflective surface to provide reflectance signals indicative of analytes present in the first and third layers to sensors located on opposite sides of the thin-film element.

    Normalizing the response of a fluorescence instrument using spectral response

    公开(公告)号:US11035783B2

    公开(公告)日:2021-06-15

    申请号:US15889765

    申请日:2018-02-06

    发明人: David A. Heavner

    摘要: A method to normalize at least one of a population of subordinate clinical diagnostic analyzer to a master clinical diagnostic analyzer such that an assay result from a subordinate clinical diagnostic analyzer can be converted to the equivalent result of the master clinical diagnostic analyzer by using a simple multiplicative factor when the assay executed on each analyzer uses a common fluorescently labeled dye. Also a method to re-normalize a subordinate clinical diagnostic analyzer assay result to a master clinical diagnostic analyzer assay result by using a simple multiplicative factor when the assay executed on the subordinate clinical diagnostic analyzer uses a different fluorescently labeled dye than the assay executed on the master clinical diagnostic analyzer.

    Treponema pallidum triplet antigen

    公开(公告)号:US10125177B2

    公开(公告)日:2018-11-13

    申请号:US15865594

    申请日:2018-01-09

    摘要: A Treponema pallidum triplet antigen construct is disclosed which includes three Treponema pallidum antigens (TP15, TP17, and TP47), as well as a ten amino acid leader sequence (tag 261) and human copper zinc superoxide dismutase (hSOD). This construct is optimized for in vitro diagnosis of syphilis infection. Plasmids containing DNA encoding the triplet antigen, host cells, production methods, detection methods, and kits are also disclosed.