All Outputs (4)

Chemically active filaments: analysis and extensions of slender phoretic theory (2022)
Journal Article
Katsamba, P., Butler, M. D., Koens, L., & Montenegro-Johnson, T. D. (2022). Chemically active filaments: analysis and extensions of slender phoretic theory. Soft matter, 18, 7051-7063. https://doi.org/10.1039/d2sm00942k

Autophoretic microswimmers self-propel via surface interactions with a surrounding solute fuel. Chemically-active filaments are an exciting new microswimmer design that augments traditional autophoretic microswimmers, such as spherical Janus particle... Read More about Chemically active filaments: analysis and extensions of slender phoretic theory.

Tubular-body theory for viscous flows (2022)
Journal Article
Koens, L. (2022). Tubular-body theory for viscous flows. Physical Review Fluids, 7(3), Article 034101. https://doi.org/10.1103/PhysRevFluids.7.034101

Cable-like bodies play a key role in many interdisciplinary systems but are hard to simulate. Asymptotic theories, called slender-body theories, are effective but apply in specific regimes and can be hard to extend beyond leading order. In this lette... Read More about Tubular-body theory for viscous flows.

Jet-driven viscous locomotion of confined thermoresponsive microgels (2022)
Journal Article
Tanasijević, I., Jung, O., Koens, L., Mourran, A., & Lauga, E. (2022). Jet-driven viscous locomotion of confined thermoresponsive microgels. Applied physics letters, 120(10), Article 104101. https://doi.org/10.1063/5.0076244

We consider the dynamics of micro-sized, asymmetrically coated thermoresponsive hydrogel ribbons (microgels) under periodic heating and cooling in the confined space between two planar surfaces. As the result of the temperature changes, the volume an... Read More about Jet-driven viscous locomotion of confined thermoresponsive microgels.

Order and information in the patterns of spinning magnetic micro-disks at the air-water interface (2022)
Journal Article
Wang, W., Gardi, G., Malgaretti, P., Kishore, V., Koens, L., Son, D., Gilbert, H., Wu, Z., Harwani, P., Lauga, E., Holm, C., & Sitti, M. (2022). Order and information in the patterns of spinning magnetic micro-disks at the air-water interface. Science Advances, 8(2), Article eabk0685. https://doi.org/10.1126/sciadv.abk0685

The application of the Shannon entropy to study the relationship between information and structures has yielded insights into molecular and material systems. However, the difficulty in directly observing and manipulating atoms and molecules hampers t... Read More about Order and information in the patterns of spinning magnetic micro-disks at the air-water interface.