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Department of Applied Physics

Living & Soft Matter

We develop new experimental and analytical tools to probe the dynamics and flow in mesoscale living, fluid, and soft systems. Our curiosity-driven research aims for discoveries in soft matter physics and at the interface between physics and biology.
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Current Focus

  • Swimming dynamics of micro- to mesoscale organisms
  • Soft matter mechanics of living materials, such as tiny plant roots and immune cells
  • Droplets and capillary phenomena
  • Further development of the micropipette force sensor technique

Research Highlights

New papers from the group (group members in bold, † shared 1st authors):


  • L. Malik†, N. Sharadhi†, M. Lamminmäki, R. A. Lara, V. Jokinen, and M. Backholm*
    arXiv:2509.20005 (2025).

  • A. Datar, J. Ryssy, A. O. Toivonen, and M. Backholm*
    arXiv:2509.08331 (2025).

  • R. A. Lara†, N. Sharadhi†, A. A. L. Huttunen, L. Ansas, E. J. G. Rislakki, G. M. Bessa, and M. Backholm*
    Communications Physics 9, 53(2026). Data shared on .

  • S. Askari†, G. Saldo Rubio†, A. Datar, H. Harjunpää, S. C. Fagerholm*, and M. Backholm*
    J. R. Soc. Interface 22, 20250231 (2025). Data shared on .

These papers showcase the PhD and postdoc research of Prof. Backholm:


  • M. Backholm*, T. Kärki, H. Nurmi, M. Vuckovac, V. Turkki, S. Lepikko, V. Jokinen, D. Quéré, J. V. I. Timonen, and R. H. A. Ras*
    Proc. Natl. Acad. Sci. USA (PNAS) 121, e2315214121 (2024). Data shared on .

  • S. Lepikko, Y. Morais Jaques, M. Junaid, M. Backholm, J. Lahtinen, J. Julin, V. Jokinen, T. Sajavaara, M. Sammalkorpi, A. S. Foster, and R. H. A. Ras
    Nature Chemistry 16, 506-513 (2024).

  • A. B. Tesler, S. Kolle, L. H. Prado, I. Thievessen, D. Böhringer, M. Backholm, B. Karunakaran, H. A. Nurmi, M. Latikka, L. Fischer, S. Stafslien, Z. M. Cenev, J. V. I. Timonen, M. Bruns, A. Mazare, U. Lohbauer, S. Virtanen, B. Fabry, P. Schmuki, R. H. A. Ras, J. Aizenberg, and W. H. Goldmann 
    Nature Materials 22, 1548–1555 (2023).

  • M. Backholm*, D. Molpeceres, M. Vuckovac, H. Nurmi, M. Hokkanen, V. Jokinen, J.V.I. Timonen, and R.H.A. Ras*
    Communications Materials 1, 64(2020).

  • M. Vuckovac, M. Backholm, J.V.I. Timonen, and R.H.A. Ras
    Science Advances 6, eaba5197 (2020).
    [Highlighted by 12 news outlets, such as Physics Today and Physics World.]

  • M. Backholm*, and O. Bäumchen*
    Nature Protocols 14, 594–615 (2019).
    [Highlighted by 10 news outlets, including Science Daily, Phys.org, EurekAlert, ScienMag, TodayChan, and Göttinger Tageblatt]

  • M. Backholm, R. D. Schulman, W. S. Ryu, and K. Dalnoki-Veress
    Phys. Rev. Lett. 113, 138101 (2014).
    [Editor's Suggestion, Highlighted by PRL Editorial]

  • M. Backholm, W. S. Ryu, and K. Dalnoki-Veress
    Proc. Natl. Acad. Sci. USA (PNAS) 110, 4528-4533 (2013).

All publications

More information on our research in the Aalto research portal.
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