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sreejithsanthosh.bsky.social

@sreejithsanthosh.bsky.social
90 followers 195 following 3 posts

PhD (physics) at UC San Diego. ex- IIT Madras. Biophysics, dynamical systems and developmental biology. Website : sreejithsanthosh.github.io

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Reposted by @sreejithsanthosh.bsky.social
Benoit Ladoux @bladoux.bsky.social · 23/09/2026
What determines how epithelial cells divide when shape cues disappear? Our new work in @natcomms.nature.com shows that divisions follow maximal stress anisotropy — a “principal-stress rule” beyond Hertwig’s long-axis rule. Fantastic work led by @luanger.bsky.social www.nature.com/articles/s41...
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Victor Yashunsky @yashunsky.bsky.social · 23/09/2026
The puzzle of living 'cowlicks' and cellular swirls at phys.org phys.org/news/2026-09...
phys.org
From swarming bacteria to tissue cells, living matter defies classic physical models of motion
A new study led by researchers from Ben-Gurion University of the Negev (BGU) reveals that living matter violates previously known physical principles of symmetry when cellular flows form and break dow...
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Claire Dessalles @clairedessalles.bsky.social · 23/09/2026
NeMo is finally out! 🐟 We present our new method to peel cellular layers and extract their nematics. If you're wondering what a fish has to do with curved nematics, check out the thread and the publication 👀👇🏼 arxiv.org/html/2609.12...
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Jeremy Yoder says no war @jbyoder.org · 12/09/2026
“If AI is going to transform science, science cannot afford to lower its standards just to make AI look transformative.”
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Nature Cell Biology @natcellbio.nature.com · 28/08/2026
☕Embryos from aged mice have increased contractility & tissue viscosity on E4.5, causing poor spreading and attachment. Similar age-associated mechanical changes in human embryos correlate with implantation potential. @katecavanaugh.bsky.social 👉https://rdcu.be/fCDVb www.nature.com/articles/s41...
nature.com
Elevated contractility drives implantation failure in mouse embryos from aged females - Nature Cell Biology
Cavanaugh et al. show that embryos from aged mice have increased contractility and tissue viscosity on embryonic day 4.5, which leads to poor spreading and attachment. Similar age-associated mechanica...
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Rashmi Priya @rashmi-priya.bsky.social · 25/08/2026
A perspective in @natmethods.nature.com on Why forces are fundamental to understanding how life comes into being - by us, @campaslab.bsky.social @yanlanmao.bsky.social @sarawickstrom.bsky.social Miguel Concha, Alba Diz-Muñoz and @streichan.bsky.social www.nature.com/articles/s41...
nature.com
The physics of sculpting a living creature - Nature Methods
Cell biologists have long known that mechanical forces, such as tension and compression, influence tissue differentiation. Now, advanced methods are letting them observe and manipulate these forces in...
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Josep Mercadal @josepmercadal.bsky.social · 11/08/2026
As a modeller, it’s sometimes hard to convey the idea that adding complexity to our models (ostensibly making them more realistic) doesn’t necessarily give us more explanatory power. This paper makes that point clear by arguing why simpler models are often more illuminating. Congrats to the authors!
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sreejithsanthosh.bsky.social @sreejithsanthosh.bsky.social · 06/08/2026
Check out our new preprint, where we rethink cell-monolayer mechanics through the lens of odd mechanics and show how non-equilibrium mechanical couplings can help explain their collective behavior.
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jared toettcher @toettch.bsky.social · 24/07/2026
New Toettchlab paper alert! Harrison Oatman just published his beautiful work combining software design for "smart" microscopy+optogenetics and some really beautiful work understanding EGFR-driven collective cell migration. www.cell.com/cell-systems...
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Prakash Lab @ Miami @vprakashlab.bsky.social · 23/06/2026
🎨🔬 Can techniques from the arts become tools for scientific discovery? Our new preprint introduces glass-based physical models for studying tissue mechanics, bridging art, physics, engineering, and biology! 😀 📄 arxiv.org/abs/2606.22281
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Suckjoon Jun’s lab at UCSD @junlab.bsky.social · 18/06/2026
1/ Out today in Science (@science.org): a result a decade in the making, and one that changed how I think about what cells are doing when they grow. We found a bacterium that grows slower than it could. And we found the molecular switch that lets us reverse it.
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Zachary Gao Sun @thezgs.bsky.social · 29/04/2026
New preprint from my Ph.D.: 'Mechanical organization yields degenerate dissipation beyond linear response' We asked how energy dissipation changes as an active actomyosin material is driven farther from equilibrium. www.biorxiv.org/content/10.6...
biorxiv.org
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bioRxiv Biophysics @biorxiv-biophys.bsky.social · 22/04/2026
Nematic order in cellular tissues: a standardized framework and anomalous defect dynamics www.biorxiv.org/content/10.64898/20…
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Mattia Serra @mattiaserra.bsky.social · 21/04/2026
📢Preprint: Positional information (PI) and information flows in dynamic tissues. Our mathematical framework quantifies, from data, how the coupled stochastic dynamics of cell positions and properties preserve, degrade and generate PI. @alex-plum.bsky.social www.biorxiv.org/content/10.6...
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Turlier lab @turlierlab.bsky.social · 12/04/2026
How can we learn tissue mechanics directly from cell patterns and images? In our new preprint, we introduce VertAX, a differentiable vertex-model framework in JAX for simulating epithelia, inferring parameters, and designing target tissue behaviors. shorturl.at/PUzT0 1/5
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Mattia Serra @mattiaserra.bsky.social · 07/04/2026
We have postdoc openings for data-driven modeling and information flows in living systems, with a focus on embryonic development. mattiaserra.com Requirements: PhD in Physics, Applied Math, or similar; prior exposure to biological data preferred. Please share with potential candidates. Thank you!
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Pierre Haas @lepuslapis.bsky.social · 04/04/2026
Now #published @physreve.bsky.social: "Elasticity and plasticity of epithelial gap closure" doi.org/10.1103/qtcv-gk3y #PhD work of Maryam Setoudeh, a model of cell intercalations during epiboly as elastoplastic deformations of a surface. @mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social
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Pierre Haas @lepuslapis.bsky.social · 17/03/2026
New #preprint: "A mechanical bifurcation constrains the evolution of cell sheet folding in the family Volvocaceae" arxiv.org/abs/2603.15171 The next chapter in the #Volvox saga: work done by Valens Tribet during his internship in my group. @mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social
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Tzer Han Tan @tzerhan29.bsky.social · 13/03/2026
Are robotic swarms the next state of matter? Excited to share the very first preprint from the lab! "Three phases of odd robotic matter" arxiv.org/abs/2603.09897
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Rory Maizels @rorymaizels.bsky.social · 10/03/2026
How can we hope to understand organismal development when it is controlled by huge, complex networks of interacting genes? 
One option is to move away from molecular details and focus on learning representations and rules. Check out the new perspective from me and @jamesbriscoe.bsky.social
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Brian Camley @diffusiveblob.bsky.social · 04/03/2026
An active material that's trying to contract can be guided by changing its friction with the environment. We predict some interesting examples, including patterns that can drive circular or linear motion of clumps of material. Work with Miller Fellow Cody Schimming: arxiv.org/abs/2603.03232
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Quanta Magazine @quantamagazine.org · 27/02/2026
Sometimes, the only way to build back up is to let everything fall apart. This is certainly true at the cellular level. www.quantamagazine.org/break-it-to-...
quantamagazine.org
Break It To Make It: How Fracturing Sculpts Tissues and Organs | Quanta Magazine
Growing tissues can crack, break, and dissociate to form structures that can later withstand immense forces.
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Laura Rustarazo-Calvo @laura-rustarazo.bsky.social · 19/02/2026
Excited to share our new review in @dev-journal.bsky.social on tissue phase transitions during development! @karengrace12.bsky.social @nicolettapetridou.bsky.social 🔗 doi.org/10.1242/dev....
doi.org
Tissue phase transitions in development: more than just mechanics
Summary: Tissue material phase transitions are classically thought to regulate tissue deformability. This Review emphasises their unexpected roles in directly influencing growth and patterning signall...
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Paul Francois @pfrancois.bsky.social · 17/02/2026
From Pankaj’s Mehta group www.biorxiv.org/content/10.6... “Our findings highlight the need for rigorous benchmarking and suggest that the biology of cell identity can be captured by simple linear representations of single cell gene expression data.” 🔥🔥🔥
biorxiv.org
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Nigel Goldenfeld @nigelgoldenfeld.bsky.social · 18/02/2026
🧪⚛️ Ever wondered what would happen if you thrashed around in a water tank, creating a blob of turbulence, and then watched it spread and gradually dissipate energy? So did we. But we did the experiment, now out in PNAS and on the cover! It only took us 7 years ... www.pnas.org/doi/10.1073/...
Pictured are 3D trajectories of turbulent particles colored by speed, showing two large vortices. Takumi Matsuzawa, Minhui Zhu et al. observed the expansion and decay of a blob of turbulence created in the center of a tank of still water. The results revealed steep fronts separating turbulent and undisturbed regions, the nonlinear transport and decay of the turbulent blob, and a persistent signature of turbulence late into the decay process. According to the authors, the analysis could help provide insight into processes ranging from star formation to fusion reactors. See the article by Matsuzawa, Zhu et al. e2526858123. Image credit: Takumi Matsuzawa.
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Paarth Gulati @paarthgulati.bsky.social · 11/02/2026
New preprint! arxiv.org/abs/2602.08105 We use mutual information to find the shared dimensionality of shared latent space between two high-dimensional variables. Turning inference into optimization, we use it to figure out dofs in movies and critical scaling in Ising!
arxiv.org
Mutual information and task-relevant latent dimensionality
Estimating the dimensionality of the latent representation needed for prediction -- the task-relevant dimension -- is a difficult, largely unsolved problem with broad scientific applications. We cast ...
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Dagmar Iber & CoBi @iberd.bsky.social · 11/02/2026
What determines the sharpness of cell fate boundaries in gradient-based patterning? We quantified #transition #zone #widths (TZW) across seven progenitor domain boundaries spanning the entire dorsal-ventral axis of the developing #mouse #neural #tube. Preprint: doi.org/10.64898/202... 🧵 1/6
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Adrienne Roeder Lab @roederlab.bsky.social · 13/01/2026
Feb 1 deadline approaching for our @kitp-ucsb.bsky.social QBio summer course on Physical Principles of Morphogenesis in Plants and Animals. @streichan.bsky.social @maurazimmermann.bsky.social @maizel-lab.org @yusuke-mori.bsky.social @akankshi.bsky.social @nicolettapetridou.bsky.social
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Vishank Jain-Sharma @vishankjs.bsky.social · 24/12/2025
Happy to share our new work from my graduate lab: DynamicAtlas, a morphodynamic atlas of Drosophila development! We develop methods for morphological time alignment of live data. Surprisingly, we find that the kinematics of fly morphogenesis are *very* simple. Enjoy! 
www.nature.com/articles/s41...
nature.com
DynamicAtlas: a morphodynamic atlas for Drosophila development - Nature Methods
DynamicAtlas integrates fixed and live imaging data to generate a morphodynamic atlas of Drosophila development.
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Paul Francois @pfrancois.bsky.social · 10/12/2025
Very happy to share our 'Evoscape' paper, now published in PNAS ! www.pnas.org/doi/10.1073/...
pnas.org
Generative epigenetic landscapes map the topology and topography of cell fates | PNAS
Epigenetic landscapes were proposed by Waddington as the central concept to describe cell fate dynamics in a locally low-dimensional space. In mode...
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Kavli Institute for Theoretical Physics @kitp-ucsb.bsky.social · 19/11/2025
Advanced grad students + postdocs: apply for the 2026 #kitpqbio summer course, "Physical Principles of Morphogenesis in Plants and Animals," at buff.ly/OXXMKEv. Apply by Feb. 1. Course directors Adrienne Roeder (Cornell) and Sebastian Streichan (UCSB)
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Kavli Institute for Theoretical Physics @kitp-ucsb.bsky.social · 25/11/2025
Boris Shraiman points a physicist’s eye on biological quandaries news.ucsb.edu/2025/022264/... 🧪
news.ucsb.edu
Boris Shraiman points a physicist’s eye on biological quandaries
Boris Shraiman is awarded the American Physical Society’s Max Delbrück Prize in Biological Physics.
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Daniel J. Cohen (Princeton) @djcohen.bsky.social · 17/09/2025
SCHEPHERD--the bioelectric cell herding platform built for YOU. Single cells, monolayers, organoids--this herds them all + new tricks. Plz try it-- we will *give* you parts! Teaser here of a steering a single cell. GS Yubin Lin's lifeblood with J. Yodh on piano; Celeste R. and Paul K. Thread 1/N
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Mattia Serra @mattiaserra.bsky.social · 19/09/2025
📣 New preprint: Mechanochemical feedback, tissue geometry & rigid-body dynamics initiate rotational migration in Drosophila via spontaneous chiral symmetry breaking. A mechanism generalizable to closed epithelia. @sreejithsanthosh.bsky.social biorxiv.org/content/10.1...
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Max Planck Institute of Molecular Cell Biology and Genetics @mpi-cbg.de · 19/09/2025
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...
mpi-cbg.de
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
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kuba sędziński @kuba-sedzinski.bsky.social · 22/09/2025
🧵1/14 Preprint thread! Can we predict a cell’s fate based on its dynamics? 🔮 Our new study unveils a framework for watching development unfold in real-time, revealing how a cell's shape and movement encode info about its future fate. 🔬📄 Preprint: tinyurl.com/4shf8v4x
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Zachary Gao Sun @thezgs.bsky.social · 18/06/2025
This piece of work from my PhD is FRESHLY out of the oven in @natureportfolio.nature.com Nature Physics! It illustrates how architecture and active stress mutually regulate Criticality and exhibit Anderson Localization-like phenomenon. www.nature.com/articles/s41...
nature.com
Feedback between F-actin organization and active stress governs criticality and energy localization in the cell cytoskeleton - Nature Physics
Self-organized criticality can occur in cellular systems, but its origins remain unclear. Now it is shown that cytoskeletal criticality is influenced by the F-actin architecture and myosin active stre...
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Ted Pavlic (he/him/his) @tedpavlic.bsky.social · 08/06/2025
Reminder: Nobel-prize winning PCR (1983), used in basically all genetic tech today, was only possible because of extremophile bacterium discovered in 1964 in Yellowstone funded by a small ~$80k NSF grant with no obvious application at the time. #science 🧪 www.richmondscientific.com/how-a-discov...
richmondscientific.com
How a discovery in Yellowstone National Park led to the development of PCR - Richmond Scientific
A discovery in Yellowstone National Park led to the development of PCR, the gold-standard COVID-19 tests used to fight the global pandemic.
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Philip Ball @philipcball.bsky.social · 31/05/2025
It's an interesting phenomenon that some of the deepest questions about how life works have become what looks like impossibly obscure molecular biology stuck right at the back of Nature, which will never get covered by the science media. Like this. /1 www.nature.com/articles/s41...
nature.com
DNA-guided transcription factor interactions extend human gene regulatory code - Nature
A large-scale analysis of DNA-bound transcription factors (TFs) shows how the presence of DNA markedly affects the landscape of TF interactions, and identifies composite motifs that are recognized by ...
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Jake Cornwall-Scoones @jcornwallscoones.bsky.social · 30/04/2025
Can using synthetic approaches to build biology help teach us the design principles of how embryos build themselves? 👷‍♀️🔧 If this is a question that interests you, come and share your thoughts at this Royal Society Workshop on Generative Biology www.royalsoc.ac.uk/science-even...
Poster for a Royal Society funded workshop on “generative biology” at the interface between synthetic and developmental biology. The workshop is scheduled for 20-21 October 2025, and features the following speakers: Philip Ball, David Brückner, Francesca Ceroni, Jamie Davies, Pulin Li, Mattias Malaguti, Yolanda Schaerli, Ricard Solé, Berna Sozen, Ben Steventon, Jared Toettcher, Vikas Trivedi, Berta Verd, Sara Wickström. Places available for short talks and posters
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sreejithsanthosh.bsky.social @sreejithsanthosh.bsky.social · 30/05/2025
Check out our new work! The code for performing coherent structure analysis, along with the documentation, is available at sreejithsanthosh.github.io/FTLEhub/. Please feel free to reach out if you are interested in using this analysis for kinematic data in your system!
sreejithsanthosh.github.io
Introduction
Welcome to your one stop solution for all your FTLE needs!
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epithelial mechanics fan club @epimechfc.bsky.social · 11/05/2025
Collective cell migration is fascinating! Some tissues behave like fluids (motile), others like solids (jammed). Check out some papers exploring this topic in this thread.
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Carl T. Bergstrom @carlbergstrom.com · 04/04/2025
Pretty much everything is fucked, but here is some beautiful and exciting science from @archaeon-alex.bsky.social and colleagues. www.science.org/doi/10.1126/...
science.org
Tissue-like multicellular development triggered by mechanical compression in archaea
The advent of clonal multicellularity is a critical evolutionary milestone, seen often in eukaryotes, rarely in bacteria, and only once in archaea. We show that uniaxial compression induces clonal mul...
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Mattia Serra @mattiaserra.bsky.social · 24/01/2025
📣Check out our work led by @alex-plum.bsky.social ! We developed a mathematical framework for morphogen patterning in dynamic tissues, revealing key insights into how morphogenesis mediates cell-cell communication, morphogen compartmentalization and fate coordination. biorxiv.org/content/10.1...
Morphogenetic movements reshape cell-cell interaction ranges, quantified as Embryological Light Cones (ELCs). These ELCs are highly different from the corresponding static tissue patterning ELCs.
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epithelial mechanics fan club @epimechfc.bsky.social · 17/01/2025
Chuai, M., Serrano Nájera, G., Serra, M., Mahadevan, L., & Weijer, C. J. (2023). Reconstruction of distinct vertebrate gastrulation modes via modulation of key cell behaviors in the chick embryo. Science Advances, 9(1), eabn5429. doi.org/10.1126/sciadv.abn5429 #EpithelialMechanics
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Dagmar Iber & CoBi @iberd.bsky.social · 07/01/2025
Our paper "Morphometry and mechanical instability at the onset of epithelial bladder cancer" is now out in @naturephysics.bsky.social : rdcu.be/d5rTP #BladderCancer #Cancer #Tumor #Biomechanics #Morphometry #ComputationalModeling
rdcu.be
Morphometry and mechanical instability at the onset of epithelial bladder cancer
Nature Physics - Carcinoma subtypes are normally linked to specific genetic alterations, but tissue mechanical changes also play a role. Now, aberrant morphologies resembling bladder carcinoma are...
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Suckjoon Jun’s lab at UCSD @junlab.bsky.social · 10/12/2024
Saransh will give the lab's first yeast talk since the birth of our lab at the #ASCB meeting 2024 in San Diego (Dec 14-18). Come to the 'Biological Size Control and Scaling' session this Saturday at 9:30 AM! "The topology, shape and size of mitochondrial networks during the cell cycle in yeast"
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Benoit Ladoux @bladoux.bsky.social · 21/11/2024
Large-scale collective motion of epithelial cells not as a fluid, but as a polar elastic solid. Our new study posted on Biorxiv: www.biorxiv.org/content/10.1...
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sreejithsanthosh.bsky.social @sreejithsanthosh.bsky.social · 17/11/2024
This app is so cool!
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