Soft matter physics
Nature excels at building complex functional materials. We however are far from understanding the structure and mechanism involved and even further from being able
to replicate equivalent materials. Here, we use, purify or engineer nanometer to micron particles which serve as building blocks to create inovative soft materials.
The particles specific properties cascade to macroscopic scales and are the cornerstone for designing new materials.
We then put efforts in understanding the soft material response to external solicitations. To do so, we use devices such as rheometer, optical tweezers or high power ultrasound.
We also take advantage of built-in sensitivity of our particles to pH or temperature to continuously morph our dispersions properties.
This bottom up approach combined with external solicitation of the self assembled soft materials allows us to tackles fundamental issues in self-assembly, gels and active matter and mimics many phenomena observed in biology or hard condensed matter.
- Traveling bands as the instability mechanism in shear thickening
[PRX 8, 031006 (2018)]
- Chiral coalescence
[Nat. Commun. 5, 3063 (2014), PNAS 114, E3376 (2017)]
- New wrinkling mechanism in gels [Science Advances
1, e1500608 (2015)]
- Self assembly of colloidal rods in twisted ribbons and membrane rafts
[Nature 481, 348 (2012), Nature 513, 77 (2014)]
- Yielding mechanism in gels: fatigue and delayed yielding
[Soft Matter 6, 3482 (2010)]
- Arrested phase separation as a new pathway for gelation
[Phys. Rev. Lett. 99, 118301 (2007)]