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Omid Sadeghnejad

@omidsadeghnejad

Expert of MTT test (my service for every one) Immunologist Interested in cell tracking #Imaging #FluorescenceFriday #Science #Microscopy

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Latest posts by Omid Sadeghnejad @omidsadeghnejad

#Microscopy #Imaging #Fluorescence
Cell Labeling is so hard

#Microscopy #Imaging #Fluorescence Cell Labeling is so hard

Even sediments are fluorescent but the cells were not labeled ;(
#Microscopy #Imaging #Fluorescence #help

19.02.2026 20:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Microscopy image of a kidney only showing the highly branched arterial tree in magenta against a black background.

Microscopy image of a kidney only showing the highly branched arterial tree in magenta against a black background.

The beauty of the kidney arterial tree for this #FluorescenceFriday. Evans Blue dye labels the vasculature. Image courtesy of postdoc Sarah McLarnon.

06.02.2026 22:16 πŸ‘ 87 πŸ” 15 πŸ’¬ 0 πŸ“Œ 0
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Let fluorescence guide your curiosity β€” it’s #FluorescenceFriday! πŸ”¬

09.01.2026 10:56 πŸ‘ 17 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Astrocytic opposition for this #FluorescenceFriday, Cytoskeleton vs. Cytoplasm.
βšͺ️GFAP 🟠eGFP πŸ”΅DAPI

Imaging credit: undergrad Camila Cabarcas

06.02.2026 14:24 πŸ‘ 12 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Glowing proof that discovery can be beautiful β€” #FluorescenceFriday! πŸ”¬

19.12.2025 13:37 πŸ‘ 10 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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✨A gut feeling you’ll love this one πŸ› The anterior midgut of a Drosophila melanogaster πŸͺ°larva puts on a confocal glow show! 🟒 Adult midgut progenitors πŸ”΄ Actin πŸ”΅ Nuclei πŸ“ΈImage by Sapna Krishnakumar #FluorescenceFriday #Microscopy #DevBio

28.11.2025 23:07 πŸ‘ 54 πŸ” 12 πŸ’¬ 0 πŸ“Œ 0
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When #halloween meets #FluorescenceFriday πŸŽƒ

31.10.2025 16:21 πŸ‘ 80 πŸ” 13 πŸ’¬ 0 πŸ“Œ 0
Preview
Research Assistant in Stem Cell aging Do you want to contribute to top quality medical research? The failure to regenerate tissue with age is a major health issue. A contributor to this decline is the loss of stem cell function. Despite t

πŸ”¬ βš•οΈ Research Assistant position open for highly motivated enthusiast of hematopoietic stem cell aging at Karolinska Institutet in Sweden πŸ‡ΈπŸ‡ͺ πŸ˜ƒ
Please share πŸ™
We are excited for your application! 😎

ki.varbi.com/en/what:job/...

01.07.2025 07:49 πŸ‘ 9 πŸ” 9 πŸ’¬ 1 πŸ“Œ 0
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πŸ”΄πŸŸ’ Cytoskeleton Session ! πŸ”¬

By @pierre-bercier.bsky.social

#Microscopy #Imaging #Fluorescence

@crg.eu @prbb.org

21.07.2025 15:50 πŸ‘ 8 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
Immunofluorescence picture from a cell, in red and green

Immunofluorescence picture from a cell, in red and green

In red and green ! πŸ”¬πŸ”΄πŸŸ’

#fluorescencetuesday #cell #biology #microscopy #immunofluorescence #cellline

@crg.eu @prbb.org @upf.edu

28.01.2025 13:31 πŸ‘ 12 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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β€œTesting MTT viability in fibroblast cells after cancerous drug treatment πŸ’›
Results show dose-dependent cytotoxicity.

#cellculture #MTTassay #cancer #CellBiology #Research #LabLife

16.10.2025 10:47 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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We celebrate our new service by ice cream...
#Science
#replica
#Art
#photography

16.10.2025 10:30 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Wish you the best

13.10.2025 18:39 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#FluorescenceFriday
Finally i can label Hela cells with MJ and Aluminum
The less volume the more labeling efficiency...
#cancer
#art

10.10.2025 15:59 πŸ‘ 7 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

#cancer
#cytotoxicity
#immunology
#viability
#assay

03.10.2025 13:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Who did MTT test and see Formazan cristals?

03.10.2025 13:42 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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I combine Ai and Mj to produce a fluorescent for Hela cells. Their combination is great but it doesn't work with cells!?!

23.08.2025 16:53 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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πŸ”Ž Looking to start a PhD in Sept 2025?
The Crick Institute spring round for PhD recruitment is open!
If you are interested in actin cytoskeleton and imaging πŸ”¬ then check out my project on role of Arp2/3 iso-complexes in regulating invadopodiaπŸ‘‡please RT

www.crick.ac.uk/careers-stud...

20.02.2025 15:25 πŸ‘ 28 πŸ” 26 πŸ’¬ 1 πŸ“Œ 2
TSCC-1

TSCC-1

Let's go for colony formation assay by these cells.
Tongue Squamous Cell Carcinoma-1 (TSCC-1)
#cancer
#cells

08.01.2025 17:38 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I've been working in a Tums Preclinical Core Facility (TPCF) as well

20.12.2024 19:38 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Happy #FluorescenceFriday
Some cells and bacteria are still alive. #microscopy
AO & PI staining

20.12.2024 17:35 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Happy #FluorescenceFriday everyone.

Here's another mouse neocortex (πŸ”΅ NeuN, πŸ”΄ tdTomato, 🟒 GFAP, 🟣 DAPI).
This one was transfected/electroporated early in development (E13), but you can still see the injection site in this hemisphere at P10.

#neuroscience #microscopy #neuroskyence #DevBio

20.12.2024 06:12 πŸ‘ 43 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
L929 cells on a scaffold

L929 cells on a scaffold

L929 cells on a scaffold

L929 cells on a scaffold

These are L929 cells were seeded on a 3D printer scaffold.
The researcher didn't know how to see the cells due to the thickness of her scaffold. When I irradiated the UV light from upside her sample and she was able to see her cells, she was going to cry😊.
#FluorescenceFriday
#imaging
#cells

16.12.2024 17:21 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Wow
Good job

06.12.2024 21:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Acridine orange and PI

Acridine orange and PI

Acridine orange and PI

Acridine orange and PI

I appreciate in advance who can interpret this image of mice's brain with Acridine Orange and PI?
#FluorescenceFriday
#imaging

05.12.2024 16:13 πŸ‘ 8 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Apical view of photoreceptors in a zebrafish embryo retina.

Apical view of photoreceptors in a zebrafish embryo retina.

Photoreceptors in the retina of a zebrafish embryo.
#FluorescenceFriday #SciArt #Microscopy #Retina

22.11.2024 23:36 πŸ‘ 81 πŸ” 12 πŸ’¬ 0 πŸ“Œ 0
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#FluorescenceFriday chick neural tube section stained for PAX7 (magenta) and SOX2 (yellow)

29.11.2024 20:16 πŸ‘ 127 πŸ” 12 πŸ’¬ 3 πŸ“Œ 1
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Microtubules feel the force #fluorescenceFriday Melanoma cells compressed by Robert Ju. See www.nature.com/articles/s41...
(I promise I will do a #SkyDive imminently...)

05.12.2024 09:13 πŸ‘ 78 πŸ” 6 πŸ’¬ 2 πŸ“Œ 0
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Who needs an #imaging #microscopy #fluorescence Starter Pack when we have #FluorescenceFriday?! This week - Ismary Blanco in the @monica-santisteban.bsky.social Lab. Perineuronal nets (green), DAPI (blue) in the Retrosplenial cortex in mouse hippocampus. Coronal image by confocal with 20X/0.8.

22.11.2024 17:32 πŸ‘ 21 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1