A system for obtaining an optical spectrum

Sokol Ndoni (Inventor), Fengxiao Guo (Inventor), Lars Schulte (Inventor)

    Research output: Patent

    Abstract

    The present invention relates to a system for obtaining an optical spectrum 648 of analytes in a fluid sample, wherein a porous filter 602a, 602b is arranged so that the fluid sample may be placed onto a first region of the porous filter, and a SERS-active material 610a, 610b having a SERS-active surface is placed at least partially within the pores of the porous filter within a second region of the porous filter. The first region and the second region of the porous filter are spatially separated and connected by through-going pores so that only sufficiently small analytes are able to reach the second region. Thereby, the porous filter enables that the fluid sample is filtered so that only sufficiently small entities in the fluid sample reach the second region where they may be probed so that an optical spectrum related to the analytes in the filtered sample may be obtained. The optical system also comprises a light source 634, a light detector 642, and the optical analysis system is arranged for obtaining the optical spectrum 648 of the analytes adjacent to the SERS-active material 610a, 610b exclusively from the second region of the porous filter 602a, 602b.
    Original languageEnglish
    IPCG01N21/65
    Patent numberWO2013174387A1
    Filing date28/11/2013
    CountryInternational Bureau of the World Intellectual Property Organization (WIPO)
    Publication statusPublished - 2013

    Bibliographical note

    Also registered as: WO2013DK50157 20130523, EP20120169050 20120523

    Cite this

    Ndoni, S., Guo, F., & Schulte, L. (2013). IPC No. G01N21/65. A system for obtaining an optical spectrum. (Patent No. WO2013174387A1).