Omid Sadeghnejad's Avatar

Omid Sadeghnejad

@omidsadeghnejad.bsky.social

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

641 Followers  |  3,416 Following  |  14 Posts  |  Joined: 05.12.2024
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Posts by Omid Sadeghnejad (@omidsadeghnejad.bsky.social)

#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 β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 β€” πŸ‘ 54    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0
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When #halloween meets #FluorescenceFriday πŸŽƒ

31.10.2025 16:21 β€” πŸ‘ 80    πŸ” 13    πŸ’¬ 0    πŸ“Œ 0
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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 β€” 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 β€” 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 β€” 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 β€” 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 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Wish you the best

13.10.2025 18:39 β€” 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 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

#cancer
#cytotoxicity
#immunology
#viability
#assay

03.10.2025 13:47 β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Wow
Good job

06.12.2024 21:08 β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 β€” πŸ‘ 21    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1