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Jonas Wietek

@jwietek

Synapse modulation, biophysics, optogenetics, opsins, optoGPCRs & channelrhodopsins... garden stuff, photography, cats, cycling, parenting...still postdocing. Patch-clamper with imaging ambitions https://scholar.google.com/citations?user=4xDsEF4AAAAJ&hl=en

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20.08.2023
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Latest posts by Jonas Wietek @jwietek

Graphic showing available AAV serotypes for Packaged on Request (AAV1, 2, 5, 6, 8, 11, rg) with AAV9 highlighted as new.

Graphic showing available AAV serotypes for Packaged on Request (AAV1, 2, 5, 6, 8, 11, rg) with AAV9 highlighted as new.

The go-to serotype for CNS + cardiac delivery is now available through Addgene's AAV Packaged on Request service, backed by the same stringent QC standards as our in-stock viral preparations. What cargo do you need in AAV9? https://twp.ai/4ivYPv

09.03.2026 16:00 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Post image Post image

Bssssssssss

06.03.2026 15:15 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image Post image
02.03.2026 05:48 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Congratulations to the entire team!

26.02.2026 14:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Next-generation multicolor indicators for in vivo imaging of norepinephrine - Nature Methods Improved red and green indicators for norepinephrine and their characterization are reported. These indicators allow detection of norepinephrine release in awake behaving mice in dual-color fiber phot...

The most sensitive green and red #norepinephrine #sensors engineered to date are out in #naturemethods! Deeply grateful to all our funders and contributors who made this work possible. A true team effort. @erc.europa.eu @snsf.ch doi.org/10.1038/s415...

26.02.2026 10:20 πŸ‘ 56 πŸ” 29 πŸ’¬ 4 πŸ“Œ 2

@mads100tist.bsky.social

25.02.2026 14:19 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I am jealous

22.02.2026 16:30 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Also, the correct number of bikes (n) is calculated by n=n+1

21.02.2026 17:19 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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a man with curly hair and glasses is making a funny face and saying no entiendo . ALT: a man with curly hair and glasses is making a funny face and saying no entiendo .

Registered for FENS, opted out for all the info mails. Bio/neuro company spam is up by 500% in my mailbox. πŸ”¬πŸ§ πŸ§ͺ

What is going on @fens.org ???

18.02.2026 18:22 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It's still funny to me that they called it humbug.

18.02.2026 18:11 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Factually it's a giant ice and stone remake of a chocolate brand logo

16.02.2026 20:44 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Very happy for my former colleague πŸ₯³πŸ₯³πŸ₯³

13.02.2026 21:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Nice. Very happy for you!

13.02.2026 15:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Please share: I am recruiting a PhD student to join my lab in Oslo!

For this project, we will investigate the role of striatal interneurons during action selection, using a combination of behavior, in vivo voltage imaging, and slice ephys.

www.jobbnorge.no/en/available...

#NeuroJobs #NeuroSkyence

13.02.2026 14:34 πŸ‘ 43 πŸ” 38 πŸ’¬ 1 πŸ“Œ 1

Also: completely missed that you have a lab now. Congratulations πŸ₯³

13.02.2026 15:01 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Highly recommended!

I wish, I could go again myselfπŸ₯²

13.02.2026 09:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
11.02.2026 21:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

bsky.app/profile/seis...

11.02.2026 17:12 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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a cartoon drawing of a cat wearing a party hat holding a confetti cannon ALT: a cartoon drawing of a cat wearing a party hat holding a confetti cannon

AAV9 is coming to @addgene.bsky.social

11.02.2026 09:02 πŸ‘ 6 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

🀣

11.02.2026 09:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Certificate for reviewing from Spie neurophotonics

Certificate for reviewing from Spie neurophotonics

In my mailbox today. Imagine the ridiculous LinkedIn post, I could have written with this πŸ˜…πŸ˜†πŸ€£ but it's cute. Thanks @spie.org

10.02.2026 22:23 πŸ‘ 7 πŸ” 0 πŸ’¬ 4 πŸ“Œ 0

Such a nice thing!

Find me in the neuro outer rim πŸ˜„

10.02.2026 12:22 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
PdCO resources

If I would sell PdCO AAVs myself, I'd had quite some nice income πŸ€”πŸ’²

πŸ§ πŸ¦ πŸ”¬πŸ­πŸŒˆ

docs.google.com/spreadsheets...

09.02.2026 21:06 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Experimentally informed, quantitative photocycle model of the light-gated potassium channel WiChR Light-gated ion channels (channelrhodopsins; ChR) can be used to precisely control the electrical activity of genetically targeted cell populations wi…

Very happy to share our new manuscript on the photocycle of the highly sensitive, K⁺-selective channelrhodopsin #WiChR. Combining electrophysiology with K⁺ imaging & comp. modelling. Thanks Franzi for this fruitful cooperationβ€”congrats to Sophia, Linda & team!
www.sciencedirect.com/science/arti...

08.02.2026 22:10 πŸ‘ 11 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

But with your flex seat post and the right tire pressure most roads will be smooth. Also wind... don't forget about the wind!

06.02.2026 22:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
https://www.scientificamerican.com/article/a-human-on-a-bicycle-is-among-the-most-efficient-forms-of-travel-in-the/&ved=2ahUKEwiB4qym8cWSAxUvRvEDHek3AvUQFnoECBkQAQ&usg=AOvVaw3TlV8Aa74h3YkkGObg3TO0

https://www.scientificamerican.com/article/a-human-on-a-bicycle-is-among-the-most-efficient-forms-of-travel-in-the/&ved=2ahUKEwiB4qym8cWSAxUvRvEDHek3AvUQFnoECBkQAQ&usg=AOvVaw3TlV8Aa74h3YkkGObg3TO0

06.02.2026 22:16 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

+3

06.02.2026 20:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Yes!

28.01.2026 20:13 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Nice work, but I'd say there are better tools for efficient axonal inhibition (PdCO, eOPN3, ...)

25.01.2026 07:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Engineering a performance-improved, axon-targeted kalium channelrhodopsin for optogenetic neuropathway inhibition

www.biorxiv.org/content/10.6...

25.01.2026 07:08 πŸ‘ 1 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0