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Guillermina Ramirez-SanJuan

@guille-rochelle.bsky.social
267 followers 381 following 16 posts

(Re)searcher of non equilibrium steady states living at the interface of physics and biology. Leading the Living Patterns lab @EPFL www.epfl.ch/labs/lpl

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Reposted by Guillermina Ramirez-SanJuan
Kirsty Wan @micromotility.bsky.social · 21/07/2026
Do #tintinnids dream of electric sheep? 🤯 Here is a single cell capable of building a lorica and living inside it for protection... it also swims, feeds, hunts Can even detect and habituate to mechanical cues! #celllearning #protistsonsky #cilia Read more in our preprint doi.org/10.64898/202...
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Ben Larson @blarson.bsky.social · 20/07/2026
Had a lot of fun writing this dispatch article for @currentbiology.bsky.social with PhD student Caitlin Doyle www.sciencedirect.com/science/arti..., highlighting cell morphogenesis and recent work on suctorian growth control principles. 1/3
sciencedirect.com
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Scott Coyle @cellraiser.bsky.social · 02/07/2026
Had a blast putting this video abstract together with colleagues for @zjmaggiexu.bsky.social story in @currentbiology.bsky.social on how the "vampire cell" P. collini builds the perfect feeding trap 👀. Be sure to check out the full paper: www.cell.com/current-biol... www.youtube.com/watch?v=Ikzm...
youtube.com
A cellular vampire builds the perfect feeding trap / Curr. Biol., June 24, 2026 (Vol. 36, Issue 14)
YouTube video by Cell Press
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Science Friday @scifri.bsky.social · 24/06/2026
Meet Euplotes gigatrox, a super-giant cannibal captured with a scanning electron microscope for our #PictureOfTheWeek. Image credit: Ben Larson and Samuel Lord
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Manuel Thery @manuelthery.bsky.social · 19/06/2026
Is there a size limit for cells ? How can cells replicate inside the architecture of their environment? Why do cells self-destroy ? This 15-minute movie vimeo.com/1173229237 shows our 2026 edition of the Living Architectures project at the @museeorsay.bsky.social
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Pawel Burkhardt @pawelburkhardt.bsky.social · 16/06/2026
How ancient are the building blocks of animal sensory systems? Key components of animal sensory systems evolved before animals. We find that choanoflagellates possess diverse & spatially segregated TRP channels, pointing to ancient origins of sensory specialization. doi.org/10.64898/202...
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Pierre Haas @lepuslapis.bsky.social · 05/05/2026
New #preprint: "Nonlinear isotropic odd elasticity" arxiv.org/abs/2605.02476 More from the #PhD work of @zhaoshh.bsky.social: revealing some of the surprising nonlinear mechanical behaviour of active, "odd" solids. @mpipks.bsky.social @mpi-cbg.de @csbdresden.bsky.social
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Wallace Marshall @wallaceucsf.bsky.social · 13/06/2026
Happy to announce our new preprint is out, in which we analyze single-cell learning in Stentor in the frequency domain, and find that the cell behaves like a fractional-order low pass filter. www.biorxiv.org/content/10.6...
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Fabien Burki @fburki.bsky.social · 11/06/2026
Fantastic week of seaside "protisting" at the Microsea summer school in Roscoff. Very keen and inspiring participants. Thanks to the organizers for an amazing first edition. Only downside is that I lost (hopefully only temporarily) my computer to a coffee spill. #protistsonsky
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EuroCilia2027 @eurocilia.bsky.social · 04/06/2026
Big congratulations to our winners: Smilla-Maria Koy (1st), Chandrama Ghosh (2nd), and Anthony Rabaté (3rd)! Check out their breath-taking micrographs and the rest of the Top 15 entries in the stunning poster attached. The future of cilia research looks beautiful. 📸 #Cilia2027
micrographs depicting cilia in different forms
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kuba sędziński @kuba-sedzinski.bsky.social · 19/05/2026
💥 🚀 New preprint! 🎉🥳 How do hundreds of organelles organize themselves into near-perfect patterns inside a cell, without a blueprint? We dive deep into how basal bodies (BBs) self-organize in MCCs - and how actin actively tunes their dynamics into order 🍪 🧵👇 (1/17)
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Susana Godinho @susanagodinho.bsky.social · 22/04/2026
Our flagship conference celebrating everything centrosomes and cilia returns this year and it promises to be another exceptional scientific event in the beautiful city of Lausanne, 1–4 September. 👉 Abstract submission+registration deadline 1 June Don’t miss the opportunity to share your research 🤩
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Ben Engel @cellarchlab.com · 08/04/2026
It’s done!! Molecular architecture of the ciliary base in mammalian multiciliated cells! A study 13 years in the making 👴, thanks to collab with @stearnslab.bsky.social + @centriolelab.bsky.social & visionary work by @computingcaitie.bsky.social, who integrated native #cryoET with #XLMS & #UExM 🧪🧶🧬🔬
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Guillermina Ramirez-SanJuan @guille-rochelle.bsky.social · 23/02/2026
Excited to share our new preprint exploring how Paramecium achieves diverse flow functions, i.e. feeding and swimming, simultaneously. This work was spearheaded by our ExM expert, PhD student Daphne Laan @daphnelaan.bsky.social : www.biorxiv.org/content/10.6...
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Gaia Pigino @gaiapigino.bsky.social · 09/02/2026
Proud and excited to share our work with the community! Helen @helenfoster.bsky.social Foster et al. study how #cilia axonemes are built. 👀 Don't miss the gorgeous and insightful movies by @margotriggi.bsky.social, they really show our discoveries in full action! www.biorxiv.org/content/10.6...
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Prakash Lab at Stanford @prakashlab.bsky.social · 27/01/2026
Cellular Olympics - now in Knowable magazine! Enjoy this with your favorite Olympic sport! knowablemagazine.org/content/arti...
knowablemagazine.org
Microbial Olympics: Super-duper one-celled athletes
They race, they leap, they spin, they shoot. Meet the organisms for whom physical prowess is more than sport — it’s a matter of life and death.
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Matt Lycas @lycasworks.bsky.social · 20/01/2026
🔬🚨New preprint alert! 🚨🔬 We developed quantitative expansion microscopy (qExM) - a method to accurately count proteins in situ by combining expansion microscopy's improved labeling with statistical estimators borrowed from ecology www.biorxiv.org/content/10.6... #SuperResolution #CellBiology
biorxiv.org
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Marine Biological Laboratory @mblscience.bsky.social · 15/01/2026
Don't miss out. Apply to our 2026 Advanced Research Training Courses today!
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Mill_lab @cilialab.bsky.social · 13/01/2026
We are back April 21 2026- volunteer or nominate yourself or someone with hot cilia and centrosome science to speak by dropping me an email or use the google doc forms.gle/9QoSvkmQ3gZL...! /FIN
forms.gle
BSCB GenSoc UK Cilia Network e-symposium series talk
Sign-up to be on the rota of future speakers for the 2025 series!
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Thibaut Brunet @thibautbrunet.bsky.social · 12/01/2026
Our research scientist Núria Ros-Rocher won the 1st prize @zeiss-microscopy.bsky.social microscopy contest with this beautiful choano colony www.zeiss.fr/microscopie/... 🥳 C. flexa might not yet be a genetic model, but it is now at least a calendar model, which counts for something. I think.
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Gaspar Jekely @jekely.biologists.social.ap.brid.gy · 13/01/2026
If you are interested in electron microscopy, registration is still open for the "Electron Microscopy Hands-On Course: sample preparation and imaging of marine environmental samples" at Stazione Zoologica in Naples. WIth great teachers from Naples […] [Original post on biologists.social]
Poster of the EM course in Naples with marine samples. The Electron Microscopy Hands-On Course: sample preparation and imaging of marine environmental samples arises from a very strong and active collaboration between the Stazione Zoologica Anton Dohrn and the EMBL in Heidelberg.
The aim of the course is to provide a theoretical and practical training on electron microscopy starting from the basics to the preparation of samples with high pressure freezing and image acquisition using TEM and SEM.
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Suraj Shankar 🏳️‍🌈 @surajshankar.bsky.social · 06/01/2026
With @tzerhan29.bsky.social, @jasnir.bsky.social and Asja Radja, we are thrilled to organize an Aspen summer workshop (Aug 9-Sept 6) on the "Physics of Collective Function in Active Living Matter". Applications are open at aspenphys.org/event/physic... till Jan 15!! Please share and apply soon!
Summer program for workshops at the Aspen Center for Physics
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Prakash Lab at Stanford @prakashlab.bsky.social · 04/01/2026
After all the anticipation - FrugalScience 2026 - a collaborative global collective is LIVE again for 2026 season. www.frugalscience.org Apply - deadline 9th January (midnight)
frugalscience.org
Frugal Science
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Courtney Stairs @cstairs.bsky.social · 13/12/2025
Save the date! The next instalment of Comparative Genomics of Unicellular Eukaryotes is a GO! Join us next year for a programme of talks, posters, ECR/networking activities. Website and registration details to follow in the coming weeks. See you October 5-10 2026 in beautiful San Feliu!!
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Stowers Institute @stowersinstitute.bsky.social · 11/12/2025
Why study a flatworm? Because it may hold the key to regenerating human organs. @danimateria.bsky.social from @elpais.com spoke w/ Pres & CSO @planaria1.bsky.social, about what #planarians can teach us about #regeneration, aging, & the possibilities of future medicine. 🔗 elpais.com/salud-y-bien...
elpais.com
Alejandro Sánchez-Alvarado, el científico que quiere desvelar los secretos del gusano inmortal
El investigador explica cómo un animal diminuto nos puede enseñar a regenerar órganos
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Wallace Marshall @wallaceucsf.bsky.social · 10/11/2025
Wound healing is a hallmark feature of all life, including single cells. In a new preprint, Ambika Nadkarni @biochembika.bsky.social investigates a new dimension in cellular wound healing: how cells recover AFTER the wound has been closed www.biorxiv.org/content/10.1...
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EMBL @embl.org · 04/11/2025
(1/2) A new study from EMBL researchers and their collaborators provides unprecedented insights into the cellular architecture of over 200 species of plankton – tiny but ecologically critical marine organisms – using ultrastructure expansion microscopy. Learn more: www.cell.com/cell/fulltex...
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Proceedings of the National Academy of Sciences @pnas.org · 17/10/2025
Sharpen your knives! High-speed video analysis reveals that blunt knives and faster cutting speeds release more eye-irritating droplets from onions by building pressure under the onion’s skin before the ejection of the tear-inducing aerosols. In PNAS: ow.ly/5rc750Xcvhj
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Kirsty Wan @micromotility.bsky.social · 15/10/2025
Final version of our paper on ciliary metachronal waves out now in Science Advances! doi.org/10.1126/scia... This is the main thesis work of my PhD student Rebecca Poon, who caught many #platnereis larvae and tirelessly ablated them with a laser. THREAD
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Guillermina Ramirez-SanJuan @guille-rochelle.bsky.social · 15/10/2025
We have PhD and Postdoc positions open in our group. Join us in Lausanne to explore how cells pull off extreme shape changes and how cilia drive biological flows. You can find more details on the projects available and how to apply in our website: www.epfl.ch/labs/lpl/joi...
epfl.ch
Join us !
We are looking for creative and motivated scientists at to join the group. We are recruiting candidates from various scientific backgrounds including, but not limited to: biophysics, physics, biochemi...
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SCNAT @scnat.ch · 08/10/2025
🧪 Last chance! Registration for the #RigiWorkshop 2026 closes next week! Our guest speakers include @dudinlab.bsky.social, @michaelraissig.bsky.social, @annikaguse.bsky.social, @gautamdey.bsky.social & @jandevries.bsky.social. More details here 👉 biol.scnat.ch/rigiworkshop26
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Thibaut Brunet @thibautbrunet.bsky.social · 05/10/2025
Latest from ours: www.cell.com/cell-reports... This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵
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Kirsty Wan @micromotility.bsky.social · 24/09/2025
Love #protists? Then you'd love this! Beautiful collection of hand-drawn critters represented here at the Oxford-Japan symposium on ethological dynamics in diorama environments sites.google.com/view/oxford-... #ciliates #testateamoeba #diatoms
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Paul & Virginie - Centriole Lab @centriolelab.bsky.social · 15/09/2025
Be our new colleague! 🎉 The Dept of Molecular and Cellular Biology at the University of Geneva is hiring an Assistant Professor or Associate Professor. 👉 More details here: lnkd.in/e8Z9eAm4 👉 Our department: mocel.unige.ch Please feel free to share this opportunity with your network.
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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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Max Planck Institute for the Physics of Complex Systems @mpipks.bsky.social · 19/09/2025
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
nature.com
Tipsy bats and perfect pasta: Ig Nobels celebrate ‘improbable’ research
The annual awards are a celebration of weird but thought-provoking science.
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Guillermina Ramirez-SanJuan @guille-rochelle.bsky.social · 18/09/2025
In another exciting development our new preprint is online: www.biorxiv.org/cgi/content/... This is the work of my brilliant graduate student Katerina Kourkoulou in collaboration with Maggie Liu and Arnold Mathijssen. Here is a video of the subject of our study:
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Guillermina Ramirez-SanJuan @guille-rochelle.bsky.social · 18/09/2025
Looks like I am late to this party but have exciting news. I’ve been awarded an ERC Starting Grant to study #XtrmCells! Thankful to @erc.europa.eus for this opportunity, and to my collaborators, mentors, and group for their support. Looking forward to exploring the mechanics of these cells!
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