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Pierre Haas @lepuslapis.bsky.social · 22h

I have very fond memories of fascinating (albeit intimidating) #devbio discussions with John Gurdon @magdalenecollege.bsky.social High Table. He'll be missed!

University of Cambridge @cam.ac.uk · 1d

It is with great sadness that the University shares the news of the death of Professor Sir John Gurdon, founder of the @gurdoninstitute.bsky.social

Read our tribute to the visionary Nobel Laureate and watch an interview from 2012, just after he won: https://bit.ly/4mM8o3r

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Pierre Haas @lepuslapis.bsky.social · 1d

Inter alia, I will talk about our recent #preprint on "Control of lumen morphology by lateral and basal cell surfaces".

bsky.app/profile/lepu...

Pierre Haas @lepuslapis.bsky.social · Sep 5

New #preprint: "Control of lumen morphology by lateral and basal cell surfaces", a great #biophysics collaboration with Chandraniva Guha Ray, @markusmukenhirn.bsky.social, Alf Honigmann @biotec-tud.bsky.social @poldresden.bsky.social.

arxiv.org/abs/2509.04316

@mpipks.bsky.social @mpi-cbg.de

Pierre Haas @lepuslapis.bsky.social · 1d

#CellPhysics2025 @uni-saarland.de: looking forward to talking about "Mechanics of Lumina" (*) in the "Cell Collectives" session this morning.

(*) Note the use of the correct plural of "lumen".

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Pierre Haas @lepuslapis.bsky.social · 7d

On my way to give a seminar @emergencediep.bsky.social, Amsterdam. Looking forward to the visit!

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Pierre Haas @lepuslapis.bsky.social · 8d

We recently submitted part of her #PhD work, "Elasticity and plasticity of epithelial gap closure" arxiv.org/abs/2509.05110: the summary of some very nice #mechanics is below. Stay tuned for more!

bsky.app/profile/lepuslapis.bsky.social/post/3lycptbyrcs2x

Pierre Haas @lepuslapis.bsky.social · Sep 8

Another #preprint: "Elasticity and plasticity of epithelial gap closure", from the #PhD work of Maryam Setoudeh:

arxiv.org/abs/2509.05110

This one required a lot of (I think) beautiful #mechanics!

@mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social

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Pierre Haas @lepuslapis.bsky.social · 8d

#proudPI moment: my first #PhD student, Maryam Setoudeh, has just submitted her thesis @tudresden.bsky.social.

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Pierre Haas @lepuslapis.bsky.social · 8d

Congratulations, Agnes @tothpetroczylab.bsky.social!

Max Planck Institute of Molecular Cell Biology and Genetics @mpi-cbg.de · 8d

Schering Young Investigator Award 2025 by the Schering Stiftung for Agnes Toth-Petroczy @tothpetroczylab.bsky.social @mpi-cbg.de @csbdresden.bsky.social. She receives the award for her work on the evolution, diversity, and function of proteins. Congratulations! 🎉 www.mpi-cbg.de/news-outreac...

New Perspectives on the Hidden World of Proteins

 Schering Young Investigator Award 2025 goes to Agnes Toth-Petroczy

www.mpi-cbg.de

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Pierre Haas @lepuslapis.bsky.social · 9d

Happy birthday!

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Pierre Haas @lepuslapis.bsky.social · 13d

Apply now for #PhD positions @mpi-cbg.de and in the #biophysics division @mpipks.bsky.social!

Max Planck Institute of Molecular Cell Biology and Genetics @mpi-cbg.de · 13d

Our call for PhD students within our International Max Planck Research School for Cell, Developmental and Systems Biology is open! Apply until October 28th. We are looking forward hearing from you! imprs.mpi-cbg.de

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Pierre Haas @lepuslapis.bsky.social · 13d

Rainy day @mpi-cbg.de.

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Pierre Haas @lepuslapis.bsky.social · 19d

Thanks, Markus!

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Reposted by Pierre Haas

Max Planck Institute for the Physics of Complex Systems @mpipks.bsky.social · 19d

IG Nobel Prize in #Physics 2025 to @mpipks.bsky.social researchers for elucidating the phase behaviour of cacio e pepe sauce. The work highlights how physics can also be applied to solve daily-life problems!

nature.com/articles/d41586-025-03045-0

Tipsy bats and perfect pasta: Ig Nobels celebrate ‘improbable’ research

The annual awards are a celebration of weird but thought-provoking science.

nature.com

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Pierre Haas @lepuslapis.bsky.social · 19d

Thanks, Pavel!

Reposted by Pierre Haas

Max Planck Institute of Molecular Cell Biology and Genetics @mpi-cbg.de · 19d

Peer pressure shapes the gut: latest publication in @pnas.org by @lepuslapis.bsky.social, @zhaoshh.bsky.social from @mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social with colleagues from @flatironinstitute.org and Princeton University. www.mpi-cbg.de/news-outreac...

Peer pressure shapes the gut

International research team develops mechanical model to explain the shaping of the fruit fly hindgut by forces from neighbouring tissues

www.mpi-cbg.de

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Pierre Haas @lepuslapis.bsky.social · 19d

This work also reveals the power of serendipity, since our collaboration started when I had dinner with Stas Shvartsman @flatironinstitute.org after his colloquium @mpi-cbg.de because he was stuck in Dresden due to a cancelled flight...

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Pierre Haas @lepuslapis.bsky.social · 19d

For a great explanation of our work with stunning 3D imagery, peruse the summary by @danielalber.bsky.social:

bsky.app/profile/dani...

Daniel Alber @danielalber.bsky.social · 20d

A ring of cells deforms into a triangular keyhole in just 15 minutes. Meet the hindgut, a model for boundary-driven morphogenesis!

Out now in @pnas.org at doi.org/10.1073/pnas... with @zhaoshh.bsky.social, Alex Jacinto, Eric Wieschaus, Stas Shvartsman, @lepuslapis.bsky.social (1/8)

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Pierre Haas @lepuslapis.bsky.social · 19d

Now #published @pnas.org: "A model for boundary-driven tissue morphogenesis", a great #biophysics #devbio collaboration led by @danielalber.bsky.social @zhaoshh.bsky.social:

doi.org/10.1073/pnas.2505160122

@mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social @flatironinstitute.org

Pierre Haas @lepuslapis.bsky.social · Mar 6

New #preprint: "A model for boundary-driven tissue morphogenesis" arxiv.org/abs/2503.03688.

A great collaboration with @danielalber.bsky.social @zhaoshh.bsky.social, Alexandre Jacinto, Eric Wieschaus, Stas Shvartsman.

@flatironinstitute.org @mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social

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Reposted by Pierre Haas

Daniel Alber @danielalber.bsky.social · 20d

A ring of cells deforms into a triangular keyhole in just 15 minutes. Meet the hindgut, a model for boundary-driven morphogenesis!

Out now in @pnas.org at doi.org/10.1073/pnas... with @zhaoshh.bsky.social, Alex Jacinto, Eric Wieschaus, Stas Shvartsman, @lepuslapis.bsky.social (1/8)

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Reposted by Pierre Haas

Max Planck Institute for the Physics of Complex Systems @mpipks.bsky.social · 22d

Bacteria are surrounded by water! New work @natphys.nature.com by @ricardalert.bsky.social @mpipks.bsky.social & collaborators @ Princeton University shows that water capillary forces organise bacterial colonies into gas, nematic streams, and droplet states.

nature.com/articles/s41567-025-02965-y

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Reposted by Pierre Haas

Max-Planck-Gesellschaft @maxplanck.de · 23d

Early-career researchers: want to run your own lab? 🌟Max Planck Research Groups offer 6+ years, up to €2.7M in funding, open-topic freedom, team support & tenure-track opportunities. Intrigued? 😃Apply by Oct 14, 2025! www.mpg.de/max-planck-r...

Graphic with a blue background and light green dots. The text 'call for applications' appears in green, and 'Ausschreibung' in white. A white arrow on the right points diagonally upward.

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Pierre Haas @lepuslapis.bsky.social · 28d

Amazing opportunities to start your own research group!

Max-Planck-Gesellschaft @maxplanck.de · 29d

Springboard for an international scientific career! 🧬🧪🔭⚛️🧠🌱 Call for #MaxPlanckResearchGroups launched; applications are possible until October 14, 2025 www.mpg.de/max-planck-r... #ScienceCareer

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Reposted by Pierre Haas

Janelia Research Campus @hhmijanelia.bsky.social · 29d

Become a Theory Fellow at Janelia.

🔍 Use computation & theory to tackle biological problems.
🖥️ Leverage state-of-the-art computational infrastructure
🤝 Collaborate across scientific disciplines

Apply by Nov. 3 @ https://janelia.link/theoryfellowprogram

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Pierre Haas @lepuslapis.bsky.social · Sep 8

Thanks Pavel!

Pierre Haas @lepuslapis.bsky.social · Sep 8

We also discover an emergent contribution of an inhomogeneous cable to the dynamics of gap closure. Our work thus explains the mechanical roles of tissue fluidisation and cable inhomogeneities in Tribolium serosa closure and processes of epiboly and wound healing more generally.

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Pierre Haas @lepuslapis.bsky.social · Sep 8

Strikingly, very different macroscopic intercalation dynamics arise in the obvious limits: in a fluidised tissue, cells deintercalate from the gap edge into the tissue bulk, while they intercalate into the gap if the energy barrier to intercalations is high.

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