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Lucien Weiss

@weisslab.bsky.social
477 followers 353 following 7 posts

Assoc. Prof @polymtl @transmedtech Cell biophysics, superres microscopy, & curious-methods enthusiast. We have open positions www.WeissLab.ca

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Reposted by Lucien Weiss
Takuya Sasatani @takuyasasatani.bsky.social · 14/09/2026
Miniscope Zero, the first fully wireless Miniscope, is on @biorxivpreprint.bsky.social! Wireless power + data enable neural recordings in enclosed mazes, 3D environments & from two animals at once! @miniscope.bsky.social Paper: doi.org/10.64898/202... Wiki: miniscope.org/wiki/Minisco...
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Saravanan Palani @syncellbiolab.bsky.social · 12/06/2026
Our new paper in @plosbiology.org introduces IntAct-U-ExM enabling isoform-specific imaging of actin at nanoscale across yeast, mammalian cells & primary neurons. Fabulous work spearheaded by @anubhavdhar.bsky.social along with an amazing team! #actin #U-ExM journals.plos.org/plosbiology/...
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Lucien Weiss @weisslab.bsky.social · 06/06/2026
How long does it take Caulobacter to adhere? Introducing the Trapezoid 🚨 Guillaume & Sukanya (@brunlabcaulo.bsky.social), et al. capture real-time adhesion with optical tweezers. Now online doi.org/10.1021/acsnano.6c03697 @pubs.acs.org #BacterialAdhesion #Biofouling #Caulobacter #OpticalTweezers
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Reposted by Lucien Weiss
Reese Richardson @reeserichardson.bsky.social · 28/05/2026
TL;DR: We've identified more than 100 cases of apparent manipulation in Thermo Fisher Scientific's antibody verification data. @sholtodavid.bsky.social @johanduchene.bsky.social reeserichardson.blog/2026/05/28/h...
reeserichardson.blog
How much of Thermo Fisher’s antibody data has been manipulated?
We’ve documented more than 100 instances of apparent data manipulation in Thermo’s catalog
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Reposted by Lucien Weiss
Stephen Royle @steveroyle.bsky.social · 17/04/2026
ICYMI: a quick calculation of transmembrane domain-containing proteins in a proteome. If you need to use this info: the code is in the post, or you can cite it since all quantixed posts have their own DOI courtesy of Rogue Scholar. doi.org/10.59350/0ah...
doi.org
My Domain: proteome-wide scanning of TMDs – quantixed
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Lucien Weiss @weisslab.bsky.social · 17/04/2026
doi.org/10.1038/s415...
doi.org
Three-dimensional super-resolution imaging with suppressed background via digital array modulation microscopy - Nature Photonics
Digital array modulation microscopy uses natural Gaussian illumination and virtual detection modulation, together with a single-spectrum reconstruction algorithm, for three-dimensional super-resolutio...
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Reposted by Lucien Weiss
Matthias Heinemann @matthiasheinemann.bsky.social · 10/04/2026
🧵 Our new paper is out today in molecularcell.bsky.social! After 7 years of a truly intriguing discovery journey, we can finally share what controls how molecules move inside living E. coli cells. Spoiler: it's not what the field thought. A thread 👇 📄 doi.org/10.1016/j.molcel.2026.03.018
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Lucien Weiss @weisslab.bsky.social · 28/03/2026
www.pnas.org/doi/10.1073/...
pnas.org
Life-like behavior emerging in active and flexible microstructures | PNAS
Many organisms leverage an interplay between shape and activity to generate motion and adapt to their environment. Embedding such mechanical feedba...
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Reposted by Lucien Weiss
Quentin Smith @qmsmith.bsky.social · 25/03/2026
1/11 In our story out today in @nature.com , we showcase the molecular mechanisms that enable Cas9 to bind and cleave negatively supercoiled ((-)SC) off-targets! 🧬🧵 🔗 www.nature.com/articles/s41... #CRISPR #Cas9 #DNATopology #AFM #CryoEM #SingleMolecule #Biophysics
nature.com
Structural basis of supercoiling-induced CRISPR–Cas9 off-target activity - Nature
Cas9 structures explain topology sensing and off-target activation.
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Reposted by Lucien Weiss
Florian Schueder @florianschueder.bsky.social · 26/03/2026
Please check out our newest work on fluorogenic speed imager probes, in which we combine the strengths of speed-optimized imagers and fluorogenic imagers. #SuperResolution #DNAPAINT #microscopy www.biorxiv.org/content/10.6...
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Reposted by Lucien Weiss
Heilemann Lab @heilemannlab.bsky.social · 16/03/2026
DNA-PAINT with photocaged DNA labels = PhotoPAINT🔬. Why? No need for washing or mixing 👉🏻 higher accuracy in DNA-PAINT & other super-res methods. Fantastic collab with Alex Heckel & driven by the 'magic team' Nina Kaltenschnee and Marina Dietz 💪 doi.org/10.1002/anie... @goetheuni.bsky.social
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Reposted by Lucien Weiss
bioRxiv Biophysics @biorxiv-biophys.bsky.social · 17/03/2026
β-barrel nanopores designed for insertion into thick block copolymer membranes www.biorxiv.org/content/10.64898/20…
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Reposted by Lucien Weiss
Séamus Holden 🔬🦠🧫 @seamusholden.bsky.social · 11/03/2026
Neat paper from Schwille lab. They demonstrate constriction of synthetic vesicles using important components of the bacterial cell division machinery, FtsZ and FtsN. They induce strong constriction of Z-rings in vesicles just by adding the cytoplasmic domain of FtsN www.nature.com/articles/s41...
nature.com
Optimizing spatial organization of FtsZ rings for large-scale constriction in synthetic cells - Nature Communications
Spatially regulated membrane constriction is an important milestone in reconstituting minimal cell division. Here the authors engineer a truncated system where the cytosolic domain of FtsN forms large...
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Reposted by Lucien Weiss
Massive Photonics @massivephotonics.bsky.social · 11/03/2026
New paper alert! Authors introduce 𝗚𝟱𝗠, 𝗮 𝗗𝗡𝗔-𝗣𝗔𝗜𝗡𝗧-𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗲𝗱 𝗚𝗮𝘂𝘀𝘀𝗶𝗮𝗻 𝗠𝗶𝘅𝘁𝘂𝗿𝗲 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴 𝗮𝗹𝗴𝗼𝗿𝗶𝘁𝗵𝗺 that accurately determines true molecular position, even at the 𝗥𝗮𝘆𝗹𝗲𝗶𝗴𝗵 𝗹𝗶𝗺𝗶𝘁, and 𝗶𝗺𝗽𝗿𝗼𝘃𝗲𝘀 𝗲𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲 𝗿𝗲𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗯𝘆 ~𝟳𝟬%. Huge congratulations to all authors! www.nature.com/articles/s41...
nature.com
Molecular mapping in DNA-PAINT via modified Gaussian Mixture Modeling - Nature Communications
Standard algorithms fail to fully exploit the spatial information in DNA-PAINT. Here, the authors present G5M, an algorithm providing molecular maps by accurately inferring biomolecule positions at di...
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Reposted by Lucien Weiss
Yongdeng Zhang @yongdengzhang.bsky.social · 21/11/2025
We are happy to share our latest work, 4Pi-SIMFLUX, which combines structured illumination with interferometric detection to achieve near-isotropic 3D localization precision of 2–3 nm and resolve sub-10 nm structural features across whole mammalian cells. www.nature.com/articles/s41... rdcu.be/eQVxt
nature.com
4Pi-SIMFLUX: 4Pi single-molecule localization microscopy with structured illumination - Nature Methods
4Pi-SIMFLUX is a single-molecule localization microscopy approach that achieves a near-isotropic resolution below 10 nm in whole mammalian cells.
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Reposted by Lucien Weiss
Jean-Yves Tinevez @jytinevez.bsky.social · 15/12/2025
I was invited by @focalplane.bsky.social to write a short description about it: focalplane.biologists.com/2025/12/12/a...
focalplane.biologists.com
A new version of TrackMate with improved integration of key AI algorithms and track edition improvements - FocalPlane
A new version of TrackMate with improved integration of key AI algorithms and track edition improvements -
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Reposted by Lucien Weiss
Kai Johnsson @kjohnsson.bsky.social · 08/03/2026
A Cinderella story: raising CLIP-tag from the ashes to shine in fluorescence labeling. www.biorxiv.org/content/10.6...
biorxiv.org
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BioImaging North America @bioimagingna.bsky.social · 02/03/2026
#HappyMicroscopyMonday #microscopycommunity-Join the AIMM user community on Friday, March 6, for a talk by Hannah Somers- “Stop Reinventing the Protocol: MicroHub, a Searchable Hub for Microscopy Knowledge” Learn more: buff.ly/kZSIkSJ
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Thibaut Brunet @thibautbrunet.bsky.social · 28/02/2026
Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating). A brief 🧵 (carried over from the old place)
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Avezov lab @avezovlab.bsky.social · 14/02/2026
🙏 This study was powered by fantastic collaborations — especially with @abelljonny.bsky.social & @joechambers.bsky.social with contribution form @felixmendu.bsky.social @lasergroup.bsky.social @franbottanelli.bsky.social 🔬🧠 www.nature.com/articles/s41...
Resolving nanobodis binding status from their single molecule mobility
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Reposted by Lucien Weiss
bioRxiv Biophysics @biorxiv-biophys.bsky.social · 03/02/2026
Continuous mass photometry by single molecule trapping www.biorxiv.org/content/10.64898/20…
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epithelial mechanics fan club @epimechfc.bsky.social · 03/02/2026
Ragaller, F., Sjule, E., Urem, Y. B., ..., Blom, H., & Sezgin, E. (2024). Quantifying Fluorescence Lifetime Responsiveness of Environment-Sensitive Probes for Membrane Fluidity Measurements. The journal of physical chemistry. B, 128(9), 2154–2167. #EpithelialMechanics buff.ly/YjCWSfP
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Reposted by Lucien Weiss
eLife @elife.bsky.social · 28/01/2026
A protein called Uninflatable acts as a switch between glial cells growing and glial cells wrapping themselves around axons. 🔗 buff.ly/WRdybO3
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Reposted by Lucien Weiss
Andrew G. York @andrewgyork.bsky.social · 13/01/2026
Great news! @mariaingaramo.bsky.social 's company (Nonfiction Labs) made a remote-controlled antibody. Its binding turns on and off with a magnet. This is a HUGE step towards our dream of magnetically controlled drugs. Imagine a cancer drug that ONLY attacks the tumor, not the rest of your body.
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Reposted by Lucien Weiss
Luc Reym⌬nd @lreymond.bsky.social · 16/12/2025
New paper from @zhixingchen2.bsky.social's lab! It turns out that, in addition to its very low phototoxicity, PKmito Deep Red (PKMDR) directly reports on mitochondrial membrane potential (MMP) in live cells through its lifetime! www.nature.com/articles/s41...
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Reposted by Lucien Weiss
Valentin Dunsing-Eichenauer @dunsingvalentin.bsky.social · 15/12/2025
New paper out! Combining single-objective light-sheet microscopy and time-resolved SPAD array detection, we massively accelerate fluorescence lifetime imaging (FLIM) compared to confocal FLIM, making FLIM applicable to 3D specimen such as organoids and embryos. www.nature.com/articles/s42...
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Reposted by Lucien Weiss
Jean-Yves Tinevez @jytinevez.bsky.social · 10/12/2025
The new version of TrackMate, the v8.1 has just been released. It builds upon the recent v8, linked below, and offers two main improvements 👇
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Reposted by Lucien Weiss
Ulrich Schwarz @ulrichschwarz.bsky.social · 24/11/2025
📢 Paper alert 📢 Chirality is known to be important for the movement of microorganisms and active matter. In our new paper out today in @natphys.nature.com, we show that chirality is used by malaria parasites to control their motion patterns: doi.org/10.1038/s415... Here comes a 🧵 ... (1/9)
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Will Scott @wsctt.bsky.social · 17/11/2025
Our new paper is published in the Journal of Chemical Biology! 🏮 We share StayRose, a red version of StayGold 🏮 StayRose has an unnatural amino acid-based chromophore, and has the same immense photobleach-resistance as StayGold 💡
jbc.org
StayRose: A photostable StayGold derivative redshifted by genetic code expansion
Photobleaching of fluorescent proteins often limits the acquisition of high-quality images in microscopy. StayGold, a novel dimeric GFP recently monomerized through sequence engineering, addresses thi...
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Reposted by Lucien Weiss
Zimmer Lab @zimmerneurolab.bsky.social · 07/11/2025
Just published in Nat. Neurosci. Led by J.P. Ferrari-Souza, this study used imaging & fluid biomarkers to reveal that microglia modulate Aβ-related astrocyte reactivity, which in turn contributes to AD progression. @erzimmer.bsky.social @natureportfolio.nature.com www.nature.com/articles/s41...
nature.com
Microglia modulate Aβ-dependent astrocyte reactivity in Alzheimer’s disease - Nature Neuroscience
Microglia influence amyloid-β effects on astrocyte reactivity in the living brain of individuals with Alzheimer’s disease. This phenomenon further contributes to cognitive impairment via tau phosphory...
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Reposted by Lucien Weiss
Reto Fiolka @retof.bsky.social · 01/11/2025
I did not expect that: Large Language Models are invertible: arxiv.org/abs/2510.15511
arxiv.org
Language Models are Injective and Hence Invertible
Transformer components such as non-linear activations and normalization are inherently non-injective, suggesting that different inputs could map to the same output and prevent exact recovery of the in...
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Reposted by Lucien Weiss
Journal of Cell Science @jcellsci.bsky.social · 29/10/2025
Daniel Abbühl, Philippe Bastin @bastinlab.bsky.social and colleagues use a novel approach for tagging tubulin to dissect microtubule assembly dynamics of the axoneme in Trypanosoma brucei. #JCSciliaSI journals.biologists.com/jcs/article/...
Figure showing that tagged tubulin is frequently incorporated into the OF tip in cells that are in G1-phase.
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Lucien Weiss @weisslab.bsky.social · 28/10/2025
www.nature.com/articles/s41...
nature.com
Sub-10 nm upconversion nanocrystals for long-term single-particle tracking - Nature Communications
This study presents ultrasmall, bright lanthanide-doped upconversion nanoparticles that overcome surface quenching, enabling high spatiotemporal resolution tracking of membrane proteins with exception...
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Séamus Holden 🔬🦠🧫 @seamusholden.bsky.social · 22/10/2025
PhD project available in my lab. Email me with CV if interested www.findaphd.com/phds/project... #microsky #bioimaging
findaphd.com
Using super-resolution microscopy to investigate the mechanistic principles of bacterial cell wall remodelling at University of Warwick on FindAPhD.com
PhD Project - Using super-resolution microscopy to investigate the mechanistic principles of bacterial cell wall remodelling at University of Warwick, listed on FindAPhD.com
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Lucien Weiss @weisslab.bsky.social · 17/10/2025
Neat - 'bubble-driven cell detachment' from Kripa Varanasi and co. doi.org/10.1126/scia...
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Jean-François Cliche @clicjf.bsky.social · 08/10/2025
Intéressant, ça : les critères de sélection du prochain Scientifique en chef du Québec ont été publiés cette semaine. Des volontaires ? 😉 publicationsduquebec.gouv.qc.ca/fileadmin/ga...
publicationsduquebec.gouv.qc.ca
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Kristen Verhey @kjverhey1.bsky.social · 13/08/2025
I never thought watching microtubules break could be so interesting! I learned so much about mechanics and modeling in this work and am extremely grateful to Archie Geng for leading the way. Also huge thanks to François Nédélec for creating Cytosim and providing advice along the way.
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Lucien Weiss @weisslab.bsky.social · 02/10/2025
"Large-scale visualization of α-synuclein oligomers in Parkinson’s disease brain tissue," NatBME doi.org/10.1038/s41551-025-01496-4 A culmination of wild brainstorms, imaging marathons, analysis breakthroughs and setbacks, around the clock work before conferences, and new friends along the way! 🧠🎆
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Alfred Millett-Sikking @amsikking.bsky.social · 28/09/2025
The culmination of many years work. One of the most advanced light-sheet microscopes in the world! -> A large field of view Snouty light-sheet microscope, with any immersion remote refocus and real-time multi-angle projections! For details see previous posts and here: github.com/amsikking/HT...
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Nate Corley @ncorley.bsky.social · 19/09/2025
RFdiffusion3 is here! We train a general network that explicitly models every atom and use it to design active enzymes and DNA binders. Tremendous team effort with Jasper, Rohith, Raktim, Rafi, Yanjing, Paul, Jonathan, and many others! Check it out: lnkd.in/eiUFfJaM.
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Lotte B. Pedersen @lottepedersen.bsky.social · 10/09/2025
KIF13B controls ciliary protein content by promoting endocytic retrieval and suppressing release of large extracellular vesicles from cilia: Current Biology www.cell.com/current-biol...
cell.com
KIF13B controls ciliary protein content by promoting endocytic retrieval and suppressing release of large extracellular vesicles from cilia
Rezi et al. show that kinesin-3 KIF13B regulates ciliary protein content by promoting endocytic retrieval and small extracellular vesicle (EV) release of ciliary proteins while suppressing their relea...
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The Science of Parkinson's @scienceofpd.bsky.social · 08/09/2025
Examining measures of executive function & MRI brain data from 497 252 UK Biobank cases, researchers find that pre-diagnosis MRI grey matter volume was lower in #Parkinsons (vs controls), in addition to curious trends in other disease indications academic.oup.com/braincomms/a...
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Nature Photonics @natphoton.nature.com · 09/09/2025
New article online: Ångström-tunable polarization-resolved solid-state photon sources. go.nature.com/4gdVWYR
go.nature.com
Ångström-tunable polarization-resolved solid-state photon sources - Nature Photonics
A platform based on quantum-emitter-embedded metasurfaces with a microcavity that can be tuned by a micro-electromechanical system is demonstrated, enabling dynamic photon emission with narrow bandwid...
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eLife @elife.bsky.social · 07/09/2025
Reconstructing long-range axons from dense brain images is tough. This study introduces a novel method that separates axon identification from global statistical rules, showing big improvements over existing tools for mapping neuronal projections. buff.ly/OBKr9cM
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Nature Photonics @natphoton.nature.com · 03/09/2025
New article online: Extreme-ultraviolet spatiotemporal vortices via high harmonic generation. go.nature.com/4m0Tc2e
go.nature.com
Extreme-ultraviolet spatiotemporal vortices via high harmonic generation - Nature Photonics
The generation of spatiotemporal optical vortices in the extreme-ultraviolet regime is demonstrated via high harmonic generation. Topologically coupled at the nanometre and attosecond domains, these l...
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Reposted by Lucien Weiss
Jonatan Alvelid @jonatanalvelid.bsky.social · 02/09/2025
Excited to share my postdoc work from the Eggeling lab in Jena (@leibnizipht.bsky.social, #FSUJena, #KTHuniversity) on bringing smart microscopy to super-resolution MINFLUX: event-triggered MINFLUX microscopy.
Demonstrative schematics and example timeline of event-triggered MINFLUX microscopy.
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Anh Hoang Le, PhD 🏳️‍🌈🏴󠁧󠁢󠁳󠁣󠁴󠁿🇻🇳 @anhhle2702.bsky.social · 26/08/2025
YO, what's up with all these almost-witchcraft techniques?? In this paper, they develop a way to freeze cells so quickly that it preserves Calcium waves midway!! WHAT??? HELLO??? So now you can do 3D reconstruction of calcium waves with just a normal confocal. www.nature.com/articles/s41...
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Loïc A. Royer 💻🔬🧪 @loicaroyer.bsky.social · 25/08/2025
🧬🔬🧪 🎉 Our team at @czbiohub is thrilled to share TWO companion papers out today in @NatureMethods! 📦 Ultrack — robust, scalable nD cell tracking 🌐 inTRACKtive — a beautiful, open-source web viewer for lineage exploration Let’s dive in! 👇 www.nature.com/articles/s41... www.nature.com/articles/s41...
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Rita Strack @ritastrack.bsky.social · 14/08/2025
There is still time to apply to become part of our team at Nature Biomedical Engineering! Please share! springernature.wd3.myworkdayjobs.com/SpringerNatu...
media.tenor.com
a blue sign that says we are hiring
ALT: a blue sign that says we are hiring
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Steve Pressé @labpresse.bsky.social · 12/08/2025
Can we learn motion models from post-processed tracks? 🧐 Not really 😢 Emission noise accounts for ~99% of the likelihood. TLDR: What you think is anomalous diffusion… might just be noise. 🤷‍♂️🤷‍♂️🤷‍♂️🤷‍♂️ 🔗 Read more in our latest preprint: arxiv.org/abs/2507.05599 #Biophysics
arxiv.org
How Easy Is It to Learn Motion Models from Widefield Fluorescence Single Particle Tracks?
Motion models (i.e., transition probability densities) are often deduced from fluorescence widefield tracking experiments by analyzing single-particle trajectories post-processed from data. This analy...
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