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Bogdan Toader

@btoader.com

Applied mathematician developing computational imaging tools #CryoET #TeamTomo Postdoc in Scheres & Bharat labs @ MRC Laboratory of Molecular Biology, Cambridge btoader.com

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14.11.2024
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Latest posts by Bogdan Toader @btoader.com

Research Group Leader Tenure Track - Structural Studies - LMB 2775 - Medical Research Council Location: Cambridge. Vacancy: Research Group Leader Tenure Track - Structural Studies - LMB 2775. Closing Date: 16/03/2026, 23:55

Please spread the word: the Structural Studies Division @mrclmb.bsky.social is looking for a new tenure-track, independent group leader with an exciting plan in any area of Structural (Molecular & Cell) biology, in discovery biology and/or methods development. πŸ₯³

mrc.tal.net/vx/mobile-0/...

16.02.2026 12:09 πŸ‘ 83 πŸ” 106 πŸ’¬ 1 πŸ“Œ 2
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Cow Tools!

We have lived alongside cows for nearly 10,000 years.
We breed them and exploit them

It is now, only now, that we have discovered THEY CAN USE TOOLS

Here I describe our study

(paper) www.sciencedirect.com/science/arti... in @currentbiology.bsky.social
with @auersperga.bsky.social

19.01.2026 17:23 πŸ‘ 1312 πŸ” 535 πŸ’¬ 26 πŸ“Œ 110

Excellent thread with links to tools whose development relied on the Chlamy dataset

10.01.2026 10:52 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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The latest issue is now online www.cell.com/molecular-ce...

08.01.2026 16:59 πŸ‘ 19 πŸ” 7 πŸ’¬ 0 πŸ“Œ 2
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Final version is out! Our large-scale cryo-ET dataset πŸ”¬ of Chlamydomonas reinhardtii 🦠 is now published in @cp-molcell.bsky.social

Huge collaborative effort! So glad to see the community already using it to develop new resources & tools.

Check it out here: shorturl.at/z4i4c
#CryoEM #CryoET

19.12.2025 16:45 πŸ‘ 137 πŸ” 47 πŸ’¬ 3 πŸ“Œ 1
Postdoctoral Scientist - Neurobiology - Dr Michel Goedert - LMB 2752 - Medical Research Council Location: Cambridge. Vacancy: Postdoctoral Scientist - Neurobiology - Dr Michel Goedert - LMB 2752. Closing Date: 04/01/2026, 23:55

Postdoc opportunity with Michel Goedert and myself to work on #cryoEM/#cryoET structures of #amyloids. Feel free to email me with any questions you might have.

mrc.tal.net/vx/mobile-0/...

10.12.2025 14:28 πŸ‘ 21 πŸ” 23 πŸ’¬ 1 πŸ“Œ 0

Join ML wizard Kiarash to develop BioML methods that work

09.12.2025 17:47 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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An Asgard archaeon with internal membrane compartments

Brilliant study led by @fmacleod.bsky.social and Andriko von KΓΌgelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!

www.biorxiv.org/content/10.1...

07.11.2025 10:44 πŸ‘ 387 πŸ” 169 πŸ’¬ 10 πŸ“Œ 22
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Happy Halloween! πŸŽƒ

Here's a selection of some of our scariest gargoyles and grotesques πŸ‘€

#Halloween

31.10.2025 10:52 πŸ‘ 43 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0

Join our group to optimise Relion’s optimisation algorithms!

31.10.2025 08:33 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Google DeepMind is bringing AI to the next generation of fusion energy We’re announcing our research partnership with Commonwealth Fusion Systems (CFS) to bring clean, safe, limitless fusion energy closer to reality with our advanced AI systems. This partnership...

Very excited to be able to talk about something I've been working on for a while now - we're working with Commonwealth Fusion Systems, IMO the leading fusion startup in the world, to take our work on AI and tokamaks and make it work at the frontier of fusion energy. deepmind.google/discover/blo...

16.10.2025 13:55 πŸ‘ 132 πŸ” 25 πŸ’¬ 2 πŸ“Œ 7

The final version of our multispectral microscopy manuscript is now online at Nature Photonics: www.nature.com/articles/s41...

The main additions are some further comparisons to yet more unmixing algorithms, in which we find that our algorithm is still the most accurate.

16.09.2025 07:43 πŸ‘ 35 πŸ” 16 πŸ’¬ 1 πŸ“Œ 0
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Sub-cellular chemical mapping in bacteria using correlated cryogenic electron and mass spectrometry imaging

Congrats Hannah Ochner and authors on this important paper! Strong collaboration with @kiranrpatil.bsky.social

www.biorxiv.org/cgi/content/...
@mrclmb.bsky.social @wellcometrust.bsky.social

31.08.2025 18:44 πŸ‘ 142 πŸ” 62 πŸ’¬ 3 πŸ“Œ 4
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Introducing DINOv3 πŸ¦•πŸ¦•πŸ¦•

A SotA-enabling vision foundation model, trained with pure self-supervised learning (SSL) at scale.
High quality dense features, combining unprecedented semantic and geometric scene understanding.

Three reasons why this mattersπŸ‘‡

14.08.2025 18:50 πŸ‘ 25 πŸ” 8 πŸ’¬ 2 πŸ“Œ 2
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Cryo-EM structure of the vault from human brain reveals symmetry mismatch at its caps LΓΆvestam and Scheres present a cryo-EM structure of vault particles, found during tau filament extraction from progressive supranuclear palsy (PSP) brain tissue. They reveal a symmetry shift at the va...

Sofia LΓΆvestam's vault structure is now online in Structure @cellpress.bsky.social. πŸ₯³

How beautifully explorative is #cryoEM! We never planned to do this. The vaults just came down with #amyloids from human brain tissue, and Sofia decided to have a closer look.

www.cell.com/structure/fu...

12.08.2025 16:05 πŸ‘ 125 πŸ” 29 πŸ’¬ 3 πŸ“Œ 0
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Targeted disruption of phage liquid crystalline droplets abolishes antibiotic tolerance of bacterial biofilms

led by @abultarafder.bsky.social

Great collaboration with @pearce-maths.bsky.social and @geiselbiofilm.bsky.social

www.biorxiv.org/cgi/content/...

29.07.2025 09:34 πŸ‘ 38 πŸ” 14 πŸ’¬ 2 πŸ“Œ 3
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How can we best use AI in science?

Myself and 9 other research fellows from @imperial-ix.bsky.social use AI methods in domains from plant biology (🌱) to neuroscience (🧠) and particle physics (πŸŽ‡).

Together we suggest 10 simple rules @plos.org 🧡

doi.org/10.1371/jour...

25.07.2025 10:58 πŸ‘ 46 πŸ” 13 πŸ’¬ 2 πŸ“Œ 0

Today, we release Franca, a new vision Foundation Model that matches and often outperforms DINOv2.
The data, the training code and the model weights are open-source.

This is the result of a close and fun collaboration
@valeoai.bsky.social (in France) and @funailab.bsky.social (in Franconia)πŸš€

21.07.2025 14:58 πŸ‘ 21 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
All-atom inverse protein folding through discrete flow matching The recent breakthrough of AlphaFold3 in modeling complex biomolecular interactions, including those between proteins and ligands, nucleotides, or metal ions, creates new opportunities for protein...

openreview.net/forum?id=8tQ...

15.07.2025 08:47 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
All-atom inverse protein folding through discrete flow matching The recent breakthrough of AlphaFold3 in modeling complex biomolecular interactions, including those between proteins and ligands, nucleotides, or metal ions, creates new opportunities for protein...

good link:
openreview.net/forum?id=8tQ...

15.07.2025 08:44 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Our entrance into protein design! Inverse folding steered by external sources of information, and for multiple conformations. By the amazing @kaiyi94.bsky.social and @kjamali.bsky.social!
Download our code and try it yourself. πŸ₯³

15.07.2025 07:18 πŸ‘ 32 πŸ” 10 πŸ’¬ 2 πŸ“Œ 0

Thanks! I did not try it on symmetric structures. However, preconditioning influences the speed of convergence to a minimum (good or not), rather than which minimum it converges to, so it's not clear to me whether it will avoid the problem you mention without running it.

12.07.2025 17:13 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Exciting study from @kiranrpatil.bsky.social and colleagues. Hannah Ochner from the group performed cryo FIB imaging.

Congrats!

01.07.2025 10:04 πŸ‘ 16 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

β€œAchieving individual tomograms of cells where any features are at 10 Γ… resolution or better is well-beyond both current capabilities and reasonable predictions of future improvements.”
:(

01.07.2025 09:53 πŸ‘ 7 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1
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Postdoctoral Scientist - Structural Studies - Dr Sjors Scheres - LMB 2640 - Cambridgeshire job with MRC Laboratory of Molecular Biology (LMB) | 12840844 Postdoctoral Scientist Starting Salary: Β£41,344 Fixed term: 3 years MRC Laboratory of Molecular Biology, Cambridge, UK We are looking for a postdoc...

We have a 3-year funded postdoc position to work on structures of #amyloid filaments. If you are an expert in protein biochemistry, structural biology or #cryoEM / #cryoET, this could be for you! Feel free to email me with any questions. Come join us! 🀩

www.nature.com/naturecareer...

25.06.2025 14:01 πŸ‘ 55 πŸ” 42 πŸ’¬ 0 πŸ“Œ 1

We also present a solution to the problem, showing how we can efficiently estimate 2nd order information and largely mitigate the poor conditioning, opening the door for efficient, SGD-based high resolution cryo-EM methods.

24.06.2025 21:31 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

We show the numerical conditioning of cryo-EM reconstruction is increasingly poor at high resolution such that SGD has no real hope of resolving high resolution structures.

24.06.2025 21:31 πŸ‘ 2 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

Ever wonder why SGD, which works so well for ab initio cryo-EM, never seems to get to high resolution on its own? Well, we have the answer: conditioning!

24.06.2025 21:31 πŸ‘ 15 πŸ” 11 πŸ’¬ 1 πŸ“Œ 0

Work on SGD for high-resolution cryo-EM refinement from my previous postdoc finally published in @actacrystd.iucr.org

with Roy Lederman and @marcusabrubaker.bsky.social

πŸ“œ Paper: journals.iucr.org/paper?S20597...
πŸ’» Code: github.com/bogdantoader...
πŸ’Ύ Data: doi.org/10.5281/zeno...

24.06.2025 17:43 πŸ‘ 22 πŸ” 5 πŸ’¬ 1 πŸ“Œ 1
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Structure of the virulence-associated Neisseria meningitidis filamentous bacteriophage MDAphi

Out in @pnas.org

Congrats @janboehning.bsky.social @abultarafder.bsky.social Miles Graham @mathieucoureuil.bsky.social
@mrclmb.bsky.social @hopitalnecker.bsky.social

www.pnas.org/doi/10.1073/...

23.06.2025 10:25 πŸ‘ 57 πŸ” 18 πŸ’¬ 1 πŸ“Œ 1