Round Robin test on bio-imaging transfer standard for 3D optical profilers

  • A. Nolvi
  • , T. Viitala
  • , A. García Pérez
  • , N. Sandler
  • , E. Hæggström
  • , C. Bermudez
  • , R. Artigas
  • , I. Kassamakov

    Research output: Chapter in Book/Conference proceedingPublished conference proceedingScientificpeer-review

    1 Citation (Scopus)

    Abstract

    A stair case height Bio-Transfer-Standard (BTS), developed and produced at the University of Helsinki (UH), was measured in two laboratories. The Round Robin test aims to determine whether BTS works with different optical profilers in different laboratories. First the artefact was measured at UH using a custom-built Scanning White Light Interferometer. Then BTS was measured at Sensofar-Tech, S.L. using an S-neox-type interferometer working either in Phase Shifting Interferometry mode or in Imaging Confocal Microscopy mode. To remove the influence of system calibration, a method featuring sample shifting and measurement subtraction was used. The BTS features eight lipid bilayer steps that each are 4.6 ± 0.1 nm tall on average. All 30 measurements done by four different operators at the two laboratories agree to within 0.1 nm which agrees with theoretical estimates and with measurements done using a surface plasmon resonance technique. The Round Robin results show the applicability of the newly developed bio-imaging transfer standard for calibrating 3D optical profilers.

    Original languageEnglish
    Title of host publicationPhotonic Instrumentation Engineering IV
    EditorsYakov G. Soskind, Craig Olson
    PublisherSPIE, The International Society for Optical Engineering
    ISBN (Electronic)9781510606616
    ISBN (Print)9781510606616
    DOIs
    Publication statusPublished - 2017
    MoE publication typeA4 Article in a conference publication
    EventPhotonic Instrumentation Engineering IV - San Francisco, California, United States
    Duration: 28 Jan 20172 Feb 2017

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume10110
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferencePhotonic Instrumentation Engineering IV
    Country/TerritoryUnited States
    CitySan Francisco, California
    Period28/01/1702/02/17

    Keywords

    • Bio transfer standard
    • Coherence Scanning Interferometry
    • Confocal
    • Optical Profiler
    • Phase Shifting Interferometry

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