Daniel Pearce from K.Kruse's group Université de Genève rocking the #cellphysics2019 with buckling in bacterial nematics! #activematter

How do bacterial colonies go from a monolayer to a three dimensional colony? journals.aps.org/prl/abstract/1…

Beautiful experiments!

Pls RT... Got a PhD in statistical physics or theoretical soft-condensed matter? Interested in animate, living systems (aka biology)? Come and join my (fledgling) group, part of EMBL Australia and @SingMolSci at UNSW in Sydney. Apply here: external-careers.jobs.unsw.edu.au/cw/en/job/4973…

Cool patterns in these active nematics on the surface of a cylinder. The curvature generates defect order! arxiv.org/abs/1810.04549

How topological defects can generate curvature youtu.be/93ro3jKxvfA via YouTube

Creating a smectic phase with nails! v.redd.it/4v6zhg5p87k41

Curvature can lead to defect order in active liquid crystals! Read the article here iopscience.iop.org/article/10.108…

Topological defects in active nematic solids can generate curvature depending on their tilt rather than their charge.

New plotting method for nematic fields. I usually show to show the Schlieren texture, but this is much easier to understand and makes it look far more like experiments!

Proposed a 100 yrs ago, we show that folding of an epithelium can spontaneously occur by buckling! Congrats to Anastasiya, a wonderful collaboration with the Kruse & Chopard Labs, Faculty of Science | UNIGE, UNIGE_en, @NCCR_ChemBio cell.com/developmental-…

How to control the motion of defects in liquid crystals by changing the temperature. Preprint out today: arxiv.org/abs/2104.11293

Removing phase difference between a pair of topological defects by creating and annihilating more defects. Read about it in our new manuscript in Soft Matter pubs.rsc.org/en/content/art…

Nematic defects #cellnematics orient with a tilt toward the boundary and generate edge currents. Victor Yashunsky, Daniel Pearce, C. Blanch-Mercader, F. Ascione, P. Silberzan, Luca Giomi Read go.aps.org/3O7Fgny Physical Review X #PRXbio Institut Curie Leiden Institute of Physics (LION) UNIGE_en bidrBGU

The fascinating realm of topological defects in swarming bacteria dynamics in our latest preprint [arXiv.2401.05560]. Victor Yashunsky, Daniel Pearce, G. Ariel, A. Be’er, Topological defects in multi-layered swarming bacteria #ActiveMatter #LivingMatter #cellnematics #SwarmingBacteria

In our new bioRXiv, @yamini-ravichan.bsky.social shows that soft compression of head-regenerating tissues from Hydra induces bicephalous regeneration. During soft compression, a second actin nematic defects appears on the wound. biorxiv.org/cgi/content/sh…

Finally, to test whether the topology change or the lack of actin nematic defects was blocking regeneration, @yamini-ravichan.bsky.social generated toroidal tissues with defects, and they regenerated a head and a foot... and even became adult animals. biorxiv.org/cgi/content/sh…

This shows that actin defects are essential for head morphogenesis. Simulations by Daniel Pearce and Karsten Kruse show that the defects organise the actin stresses to shape the Hydra tissue into a head and a foot... or two heads and a foot. biorxiv.org/cgi/content/sh…

Here to drop all the eye-candy from our latest preprint on actin defect mediated Hydra morphogenesis Roux Lab Daniel Pearce We'd like to thank the GALLIOT lab for their support and the Keren lab for their valuable feedback on this work! (1/6) biorxiv.org/content/10.110…

A team from the UNIGE has shown that the hydra is capable of generating two heads when slight pressure is applied to its body. Roux Lab Chemistry and Biochemistry - UNIGE Faculty of Science | UNIGE #chemistry #biology #science #research ow.ly/9RpJ50UHux5