Living, Fluid, & Soft Matter
We develop new experimental and analytical tools to probe the dynamics and flow in mesoscale living, fluid, and soft systems. We perform curiosity-driven research to make discoveries in soft matter physics and at the interface between physics and biology.
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
Group members
Postdocs
- Joonas Ryssy, 2024–2026 –> Postdoc, City University of Hong Kong
- , 2024–2025 –> Tenure-track assistant professor, IIT Gandhinagar, India
- Guilherme Bessa, 2023–2025 –> Research Data Solution Lead, Aalto IT services, Finland
MSc students
- Clara Prêcheur Llarena (MSc thesis, visiting student from EPFL, Switzerland), 2025–2026
- Heidi Lemmetty (MSc special assignment), Summer 2025
- Annika Marjamäki (MSc-level laboratory exercise, Uni of Helsinki), Summer–Fall 2025
- Dipti Boopalan (MSc thesis), 2024–2025
- Anna Huttunen (MSc thesis), 2024–2025
- Jules Pater (research internship from ESPCI, France), Summer 2024
- Anna Huttunen (MSc special assignment), Summer 2023
BSc students
- Frida Balthasar (BSc thesis), Summer–Fall 2025
- Aku Toivonen (BSc thesis), Spring 2025
- Seela Saartoala (BSc thesis), Summer 2024
- Martta Lamminmäki (BSc thesis), Summer 2024
- Ensio Rislakki (BSc thesis), Summer 2024
- Lotta Ansas (BSc thesis), 2023–2024
- Aaro Saastamoinen (BSc thesis), Summer 2023
- Clara Prêcheur Llarena, Summer 2023
Click these links for my contact details and .
Short bio
- Tenure-track Assistant Professor (2022–), Dept. of Applied Physics, Aalto University
- Postdoc(2015–2017) and Academy of Finland postdoc (2017–2022), Aalto University
- PhD in Physics, McMaster University, Canada (2015)
- MSc in Nanoscience, Aarhus University, Denmark (2011)
- BSc in Physics, University of Helsinki, Finland (2009)
Grants and awards (selection)
- Väisälä award for career accomplishments in physics, Finnish Academy of Science and Letters (2025)
- ERC StG (2023)
- Research Council of Finland Research Fellowship (2023)
- Grant from the Jane and Aatos Erkko Foundation (2023)
- The Finnish Academy of Science and Letters Väisälä Starting Grant (2023)
- Hannu Koskinen’s best presentation award at the Finnish Physics Days (2019)
- The Ruth and Nils-Erik Stenbäck Foundation award for career accomplishments in science (2017 and 2024)
- Academy of Finland Postdoctoral Researcher (2017)
- The McMaster University School of Graduate Studies International Excellence Award (2012 and 2014)
Identifiers: , ,
Social media: ,
Funding
Prof. Backholm is currently funded by an ERC StG (2023), a Research Council of Finland Research Fellowship (2023), the Finnish Academy of Science and Letters Väisälä Starting Grant (2023), as well as grants from the Jane and Aatos Erkko Foundation (2023) and the Ruth and Nils-Erik Stenbäck Foundation (2024).
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).
S. Askari†, G. Saldo Rubio†, A. Datar, H. Harjunpää, S. C. Fagerholm*, and M. Backholm*
J. R. Soc. Interface 22, 20250231 (2025).
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).
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).
News
All publications
R. A. Lara, N. Sharadhi, A. A. L. Huttunen, L. Ansas, E. J. G. Rislakki, G. M. Bessa, Matilda Backholm
2026
Communications Physics
Shohreh Askari, Guillem Saldo Rubio, Anagha Datar, Heidi Harjunpää, Susanna C. Fagerholm, Matilda Backholm
2025
Journal of the Royal Society Interface
Matilda Backholm, Tytti Kärki, Heikki Nurmi, Maja Vuckovac, Valtteri Turkki, Sakari Lepikko, Ville Jokinen, David Quéré, Jaakko Timonen, Robin Ras
2024
Proceedings of the National Academy of Sciences
Sakari Lepikko, Valtteri Turkki, Tomi Koskinen, Ramesh Raju, Ville Jokinen, Mariia S. Kiseleva, Samuel Rantataro, Jaakko V.I. Timonen, Matilda Backholm, Ilkka Tittonen, Robin H.A. Ras
2024
Small
Sakari Lepikko, Ygor Morais Jaques, Muhammad Junaid, Matilda Backholm, Jouko Lahtinen, Jaakko Julin, Ville Jokinen, Timo Sajavaara, Maria Sammalkorpi, Adam Foster, Robin Ras
2024
Nature Chemistry
Henri Savolainen, Matilda Backholm, Olli Ikkala, Hang Zhang
2024
ACS Applied Polymer Materials
Dan Daniel, Maja Vuckovac, Matilda Backholm, Mika Latikka, Rahul Karyappa, Xue Qi Koh, Jaakko V.I. Timonen, Nikodem Tomczak, Robin H.A. Ras
2023
Communications Physics
Alexander B. Tesler, Stefan Kolle, Lucia H. Prado, Ingo Thievessen, David Böhringer, Matilda Backholm, Bhuvaneshwari Karunakaran, Heikki A. Nurmi, Mika Latikka, Lena Fischer, Shane Stafslien, Zoran M. Cenev, Jaakko V.I. Timonen, Mark Bruns, Anca Mazare, Ulrich Lohbauer, Sannakaisa Virtanen, Ben Fabry, Patrik Schmuki, Robin H.A. Ras, Joanna Aizenberg, Wolfgang H. Goldmann
2023
Nature Materials
Matti J. Hokkanen, Matilda Backholm, Maja Vuckovac, Quan Zhou, Robin H.A. Ras
2021
Advanced Materials
Matilda Backholm, Daniel Molpeceres, Maja Vuckovac, Heikki Nurmi, Matti Hokkanen, Ville Jokinen, Jaakko Timonen, Robin Ras
2020
Communications Materials
Mika Latikka, Matilda Backholm, Avijit Baidya, Alberto Ballesio, Amandine Serve, Grégory Beaune, Jaakko V.I. Timonen, Thalappil Pradeep, Robin H.A. Ras
2020
Advanced Science
Maja Vuckovac, Matilda Backholm, Jaakko V.I. Timonen, Robin H.A. Ras
2020
Science Advances
Matilda Backholm, Oliver Bäumchen
2019
Nature Protocols
Simo Näkki, Julie T.W. Wang, Jianwei Wu, Li Fan, Jimi Rantanen, Tuomo Nissinen, Mikko I. Kettunen, Matilda Backholm, Robin H.A. Ras, Khuloud T. Al-Jamal, Vesa Pekka Lehto, Wujun Xu
2019
International Journal of Pharmaceutics
Mika Latikka, Matilda Backholm, Jaakko V.I. Timonen, Robin H.A. Ras
2018
Current Opinion in Colloid and Interface Science
S. Zhang, O. H. Pakarinen, M. Backholm, F. Djurabekova, K. Nordlund, J. Keinonen, T. S. Wang
2018
Journal of Physics: Condensed Matter
Matilda Backholm, Maja Vuckovac, Jan Schreier, Mika Latikka, Michael Hummel, Markus B. Linder, Robin H.A. Ras
2017
Langmuir
Matilda Backholm, Jaakko V.I. Timonen, Robin H.A. Ras
2017
Europhysics News
Adree Khondker, Alexander Dhaliwal, Richard J. Alsop, Jennifer Tang, Matilda Backholm, An Chang Shi, Maikel C. Rheinstädter
2017
Physical Chemistry Chemical Physics
S. Alison Stewart, Matilda Backholm, Nicholas A. D. Burke, Harald D. H. Stoever
2016
Langmuir
J. Tang, R. J. Alsop, M. Backholm, H. Dies, A. C. Shi, M. C. Rheinstadter
2016
Soft Matter
M. Backholm, A. K. S. Kasper, R. D. Schulman, W. S. Ryu, K. Dalnoki-Veress
2015
Physics of Fluids
Matilda Backholm, William S. Ryu, Kari Dalnoki-Veress
2015
European Physical Journal E
Matilda Backholm, Michael Benzaquen, Thomas Salez, Elie Raphael, Kari Dalnoki-Veress
2014
Soft Matter
Matilda Backholm, Rafael D. Schulman, William S. Ryu, Kari Dalnoki-Veress
2014
Physical Review Letters
Yegor Rabets, Matilda Backholm, Kari Dalnoki-Veress, William S. Ryu
2014
Biophysical Journal
Rafael D. Schulman, Matilda Backholm, William S. Ryu, Kari Dalnoki-Veress
2014
Physical Review E
R. D. Schulman, M. Backholm, W. S. Ryu, K. Dalnoki-Veress
2014
Physics of Fluids
Matilda Backholm, Morten Foss, Kai Nordlund
2013
Applied Surface Science
Matilda Backholm, William S. Ryu, Kari Dalnoki-Veress
2013
Proceedings of the National Academy of Sciences of the United States of America
Oliver Baeumchen, Michael Benzaquen, Thomas Salez, Joshua D. McGraw, Matilda Backholm, Paul Fowler, Elie Raphael, Kari Dalnoki-Veress
2013
Physical Review E
Matilda Backholm, Morten Foss, Kai Nordlund
2012
Nanotechnology
Flyura Djurabekova, Matilda Backholm, Marie Backman, Olli H. Pakarinen, Juhani Keinonen, Kai Nordlund, Tzu-Ray Shan, Bryce D. Devine, Susan B. Sinnott
2010
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
More information on our research in the Aalto research portal.