OPTICAL PARTICLE ANALYSER WITH ILLUMINATION AT AN OBLIQUE ANGLE ONTO A NON-TRANSPARENT MICROFLUIDIC CHIP

    公开(公告)号:US20240133794A1

    公开(公告)日:2024-04-25

    申请号:US18278079

    申请日:2022-02-11

    发明人: Alex ZHUKOV

    IPC分类号: G01N15/14

    CPC分类号: G01N15/1459 G01N2015/1447

    摘要: An optical particle analyser is provided; the analyser comprising: a microfluidic chip comprising: a flow channel for carrying particles; the flow channel arranged between a transparent window and a non-transparent substrate; a light source configured to emit an illumination beam towards the flow channel; wherein the microfluidic chip and the light source are arranged such that, in use, the illumination beam impinges the window at an oblique angle of incidence. By providing the optical particle analyser in this manner, high performance particle analysis may be accurately carried out.

    OPTICAL PARTICLE ANALYSER WITH ILLUMINATION AT AN OBLIQUE ANGLE ONTO A NON-TRANSPARENT MICROFLUIDIC CHIP

    公开(公告)号:US20240230510A9

    公开(公告)日:2024-07-11

    申请号:US18278079

    申请日:2022-02-11

    发明人: Alex ZHUKOV

    IPC分类号: G01N15/14

    CPC分类号: G01N15/1459 G01N2015/1447

    摘要: An optical particle analyser is provided; the analyser comprising: a microfluidic chip comprising: a flow channel for carrying particles; the flow channel arranged between a transparent window and a non-transparent substrate; a light source configured to emit an illumination beam towards the flow channel; wherein the microfluidic chip and the light source are arranged such that, in use, the illumination beam impinges the window at an oblique angle of incidence. By providing the optical particle analyser in this manner, high performance particle analysis may be accurately carried out.

    APPARATUS FOR TRANSMISSION OPTICAL MEASUREMENTS WITH A WINDOW IN AN OPAQUE SUBSTRATE

    公开(公告)号:US20230288315A1

    公开(公告)日:2023-09-14

    申请号:US18019528

    申请日:2021-08-05

    IPC分类号: G01N15/14

    摘要: A method of producing a microfluidic chip for use in flow cytometry, the method comprising the steps of providing an opaque substrate, a first surface of which is optically smooth for visible light providing a continuous transparent layer across said first surface by vapour deposition so as to provide conformal contact between the continuous transparent layer and the first surface of the substrate providing a flow channel bounded on a first side by the continuous transparent layer and etching an aperture in a second surface of the substrate extending to the first surface of the substrate so as to provide an optical path between said second surface and the flow channel wherein the continuous transparent layer is less reactive to the etching than the substrate.