Welcome to Nadeau Lab Physics and Biology of Microorganisms on Earth and Beyond Contact Us Welcome to Nadeau Lab Microscopy and Materials Laboratory at Portland State University Contact Us

Current projects are both theoretical and experimental.


The Nadeau Lab is in SB2-21 in SRTC at Portland State University


Members of the Nadeau lab come from physics, chemistry, and biology

Current Projects

Current projects are both theoretical and experimental and include:

See these pages for project details

We Are Funded

Some of our funding sources include NASA, the NSF, and the ASTROBi Foundation.

Lab Members

Jay Nadeau

Principal Investigator

Carl Snyder

PhD student

Jackie Acres

PhD student

Nikki Johnston

PhD Student

Mae Dubay

MS student

Lukas Scott-Mendoza

MS student
Contact Form

Please contact us here with questions or comments.

    Home of the motility database

    A server containing test datasets of raw holograms of motile microorganisms. Reconstruction and processing software are all available open source as Fiji plugins. Please contact us for more information if you are interested in these data.

    An open archive of videos of microbial motility in three dimensions for scientists, educators, and the public.

    What role does microbial motility play in aquatic environments: oceans, lakes, and inside the pores of sea ice?

    When microbes lose the ability to swim, what will make them swim again–temperature, amino acids, sugars? How long does it take to go from motile to non-motile?

    Is microbial motility substantially different in extremely cold and nutrient poor environments (such as the Arctic) than in more temperate environments (such as off Scripps pier)?

    Can we build a microscope to look for microbial motility on an icy moon of Jupiter or Saturn? How can motility be a biosignature that complements biochemical biosignatures of life on other planets?

    Featured Papers


    Biology Lab

    Optics Lab

    Advanced Microscopy

    Contact number

    (503) 795-8929

    Contact email


    Mailing address

    Department of Physics
    SRTC Room 134
    Portland State University
    Portland, OR 97201

    Lab locations

    SRTC B2-21
    SRTC B2-50