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Nadia Halidi

@nadiahalidi.bsky.social

Biophysicist, #ImagingScientist, cycling enthusiast. Head of the Advanced Light Microscopy Unit-CRG, Barcelona. πŸŽ“ Γ‰cole Polytechnique FΓ©dΓ©rale de Lausanne

699 Followers  |  649 Following  |  65 Posts  |  Joined: 23.10.2023
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Posts by Nadia Halidi (@nadiahalidi.bsky.social)

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Before this day ends!

25.02.2026 23:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Have spent a day and a half on something that will save me around 2 hours every month. Worth it. xkcd.com/1205/

25.02.2026 03:34 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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Under Review with Dr Elisabeth Bik - Research fraud detection, papermills and that rat Spotify video

In this episode of the Under Review podcast, I talk to @andytattersall.bsky.social about research fraud detection, papermills, and that rat.

open.spotify.com/episode/0pYD...

24.02.2026 03:14 β€” πŸ‘ 34    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0
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Beautiful β˜€οΈy day, finally.

07.02.2026 15:32 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Standardized measurements for monitoring and comparing multiphoton microscope systems - Nature Protocols A set of procedures is described here for standardizing the evaluation of multiphoton microscope performance, covering laser power, pulse width optimizations, field of view, resolution and photomultip...

Fortunately, there's a resource to improve benchmarking of multiphoton systems. So things can get better. Here's the paper www.nature.com/articles/s41... And here's the free PMC version PDF (pmc.ncbi.nlm.nih.gov/articles/PMC...) (3/3)

21.01.2026 20:55 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Comparing multiphoton (2p/3p) imaging systems is often done poorly. labrigger.com/blog/2026/01... E.g., PSFs can be measured differently by different labs, staining quality is by far the biggest determinate on how multiphoton images will look at depth, and so forth. (1/3)

21.01.2026 20:55 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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Spectacular views today!

18.01.2026 19:47 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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We spend way too much time manually analyzing #microtubules πŸ”¬

Together with Mario, Justus, Dominik, Felix & Erik we used synthetic data and foundation models to build a fully automated segmentation pipeline.

#microscopy, #imageanalysis & #AI

Check out our preprint:
www.biorxiv.org/content/10.6...

14.01.2026 16:32 β€” πŸ‘ 27    πŸ” 9    πŸ’¬ 1    πŸ“Œ 0
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Building blocks! πŸ™‚

14.01.2026 06:02 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
The images shows an array of 6 Expansion microscopy images of cell nuclei (three columns and 2 rows). each image was taken with a different SPY-DNA probe to stain the nuclear DNA and is pseudocolored to the  fluorescence wavelength of the SPY-DNA probe. Trom top left to bottom right: SPY505-DNA (green); SPY555-DNA (magenta); SPY595-DNA (yellow); SPY620-DNA (orange); SPY650-DNA (red); SPY700-DNA (darker red). a white scale bar of 50 micrometers is given for each image to get an impression of the scale of each nuclei.

The images shows an array of 6 Expansion microscopy images of cell nuclei (three columns and 2 rows). each image was taken with a different SPY-DNA probe to stain the nuclear DNA and is pseudocolored to the fluorescence wavelength of the SPY-DNA probe. Trom top left to bottom right: SPY505-DNA (green); SPY555-DNA (magenta); SPY595-DNA (yellow); SPY620-DNA (orange); SPY650-DNA (red); SPY700-DNA (darker red). a white scale bar of 50 micrometers is given for each image to get an impression of the scale of each nuclei.

Are you staining DNA in your ExM samples?

We have awesome news for you! All our 6 SPY-DNA probes work beautifully well with the U-ExM protocol.

You can now tune the color of the DNA channel to your needs, according to the fluorophores on your preferred antibodies.

spirochrome.com/products/?_c...

08.01.2026 14:25 β€” πŸ‘ 22    πŸ” 7    πŸ’¬ 2    πŸ“Œ 2
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Believe me when I say that I'm overlooking Barcelona. πŸ™‚

28.12.2025 21:30 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The compulsory Christmas day ride! βœ… πŸ™‚πŸŽ„πŸŒŸ

25.12.2025 19:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Wuhuuu, preprints using the #RxivMaker engine are popping 🍾

27.11.2025 08:54 β€” πŸ‘ 22    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0
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Our annual PhD call is closing at the end of this week on 30 November. If you're interested in carrying out world-class scientific research in Barcelona, you still have a few days left to submit your application! www.crg.eu/en/content/t...

25.11.2025 07:43 β€” πŸ‘ 14    πŸ” 18    πŸ’¬ 0    πŸ“Œ 3
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We just released a new major version of TrackMate (v8), the cell and organelle tracking plugin of Fiji.

It ships many new features, detailed below, but that are articulated around the following:

20.11.2025 11:42 β€” πŸ‘ 182    πŸ” 76    πŸ’¬ 4    πŸ“Œ 7
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My two favorite CUBEs πŸ™‚

16.11.2025 15:21 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In science a misconduct is a misconduct, whether accidental or deliberate. Ignorance is not an excuse.

06.11.2025 08:08 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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FPbase Fluorescence Spectra Viewer An interactive fluorescence spectra viewer to evaluate the spectral properties of fluorescent proteins, organic dyes, filters, and detectors.

The FPbase spectra viewer just had it's biggest software refactor in 6 years. It *should* be largely invisible to the end user (hopefully just faster and less buggy). Please let me know if you find any issues as you use it!

www.fpbase.org/spectra/

04.11.2025 15:03 β€” πŸ‘ 112    πŸ” 36    πŸ’¬ 4    πŸ“Œ 2

I have two open positions @ALMU @crg.eu:

1. Imaging Scientist (permanent position. Deadline 11th Nov.) recruitment.crg.eu/content/jobs...

2. Entry-Level Imaging Scientist (12 months fixed-term position. Deadline 18th Nov.) recruitment.crg.eu/content/jobs...

Reposts appreciated.

03.11.2025 14:01 β€” πŸ‘ 6    πŸ” 11    πŸ’¬ 0    πŸ“Œ 0
Ayudas para contratos Juan de la Cierva 2025 | Agencia Estatal de InvestigaciΓ³n Las ayudas Juan de la Cierva tienen como finalidad fomentar la incorporaciΓ³n de jΓ³venes, en posesiΓ³n del grado de doctor, con objeto de que completen su formaciΓ³n investigadora postdoctoral en centros...

Interested in intracellular organization and membrane trafficking? πŸ₯ž Join us at @melisupf.bsky.social in Barcelona! We’re looking for postdocs to apply for a Juan de la Cierva fellowship (PhD between Jan’24–Dec ’25). If you’d like to work with us, get in touch! www.aei.gob.es/en/announcem...

02.11.2025 11:08 β€” πŸ‘ 14    πŸ” 13    πŸ’¬ 0    πŸ“Œ 1
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Diada Montserratina βœ…
In memoriam duorum patrum.

02.11.2025 15:08 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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I did not know that the info I was looking for is right next to the canteen, just needed to walk the other direction. In exploring mode...

28.10.2025 13:17 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks for sharing! πŸ™‚

28.10.2025 07:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Episode 17 - perhaps my favorite yet. How do you write a forum.image.sc post that will get you the answers you need without revealing information you don't want to tell? @erinweisbart.bsky.social and I go through what the experts need to know to help you. Post your sci q's today on forum.image.sc !

27.10.2025 18:20 β€” πŸ‘ 24    πŸ” 16    πŸ’¬ 2    πŸ“Œ 1
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Are you looking for a PhD? Join us in Barcelona! You'll dive into a community of >100 PhD students from 30 countries exploring the frontiers of biology. You can also join an online workshop on 6 November (15:00 CET) to learn how to find the right lab for you.

More info: www.crg.eu/en/content/t...

23.10.2025 07:55 β€” πŸ‘ 25    πŸ” 28    πŸ’¬ 1    πŸ“Œ 8
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"The world has changed.
...
Much that once was is lost,
For none now live who remember it.”
― J.R.R. Tolkien

Cerdanyola del Vallès

25.10.2025 14:27 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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πŸ”¬ Community Workshop #1: "Intro to Instrumentation QC in Light Microscopy"
πŸ”Ή Learn to monitor laser power
πŸ”Ή Record & inspect PSFs
πŸ”Ή Analyze data using FIJI + MetroloJ_QC

πŸ‘©β€πŸ”¬Facilitators from @gimmfoundation.bsky.social, @crg.eu & Nova Medical School (NMS).

Let’s build better #microscopy!

#SPAOM2025

22.10.2025 13:48 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
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The inside of an SP8! Bringing it's 633 nm laser back to life from SP5 parts!

02.10.2025 16:17 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Once is an exception, twice is a trend, thrice is a tradition!

Save the date for our now-traditional annual OME-NGFF extravaganza in Zurich!

Whether you’ve just heard about OME-NGFF and are curious to learn more or if you are working with it every day, there is something for everyone this year!

25.08.2025 13:50 β€” πŸ‘ 34    πŸ” 22    πŸ’¬ 0    πŸ“Œ 0
Crick BioImage Analysis Symposium 2025 Poster

Crick BioImage Analysis Symposium 2025 Poster

The #CBIAS2025 abstract deadline is this Sunday, August 31st. Submit your #BioImageAnalysis work, whether it’s a new tool or a biological discovery. #EarlyCareerResearchers, this is for you! Short and flash talk slots are up for grabs.

www.crick.ac.uk/whats-on/cri...

26.08.2025 11:11 β€” πŸ‘ 17    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0