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jared toettcher

@toettch.bsky.social
1.2K followers 180 following 48 posts

Dad, bioengineer, climber, skier, surfer (in that order, more or less). Chaotic good alignment, or so my lab tells me...

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jared toettcher @toettch.bsky.social · 11/09/2026
Princeton postdoctoral fellowship opportunity to work in my lab & others! This opportunity is part of a new NSF-funded center here, and is particularly focused on candidates who are interested in biomolecular condensates and programmable soft materials. Deadline Nov 1. apply.interfolio.com/193107
apply.interfolio.com
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Kate Cavanaugh @katecavanaugh.bsky.social · 25/08/2026
And finally—a bit of personal news: 🔬 I’m on the faculty job market this year! I’m looking for tenure-track opportunities where I can build a lab at the intersection of developmental biology, mechanobiology, reproductive biology & aging.
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jared toettcher @toettch.bsky.social · 08/07/2026
Hey friends, we're hiring over here at Princeton Bioengineering! In addition to the usual positions (faculty, grad students, postdocs), BioE is looking for a Program Manager to help oversee big multi-PI projects (e.g. DARPA, ARPA-H). Pass along & apply if interested! apply.interfolio.com/187973
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jared toettcher @toettch.bsky.social · 24/07/2026
New Toettchlab paper alert! Harrison Oatman just published his beautiful work combining software design for "smart" microscopy+optogenetics and some really beautiful work understanding EGFR-driven collective cell migration. www.cell.com/cell-systems...
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Ankita Jha @ankita13jha.bsky.social · 07/07/2026
Excited to share our new paper, now published in Nature Cell Biology! 🎉 We asked a fundamental question in cell biology: How do cells maintain polarity while migrating? Especially how do cancer cells navigate confined spaces? www.nature.com/articles/s41556-026-01981-1
nature.com
CD44 restricts EGFR mobility to polarize cytoskeletal signalling modules driving bleb-based migration - Nature Cell Biology
Jha et al. show that the transmembrane protein CD44 restricts EGFR mobility to maintain an EGFR–PI3K–Rac gradient during bleb-based cell migration.
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jared toettcher @toettch.bsky.social · 08/07/2026
Hey friends, we're hiring over here at Princeton Bioengineering! In addition to the usual positions (faculty, grad students, postdocs), BioE is looking for a Program Manager to help oversee big multi-PI projects (e.g. DARPA, ARPA-H). Pass along & apply if interested! apply.interfolio.com/187973
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Boris Sieber @borissieber.bsky.social · 12/05/2026
Together with mammalian KSR1/2 and budding yeast Ste5, our discovery of Sms1 demonstrates the #evolutionary #convergence of the MAPK scaffolds in opisthokonts, with the independent acquisition of MAPK affinity and plasma membrane targeting domains.
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Craig Kaplan @triggerloop.bsky.social · 10/05/2026
IU let them lock the labs without notice and the occupants had to beg to make sure equipment was turned off and experiments running taken care of to, you know, not cause the building to burn down
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Erik Sontheimer 🇺🇸💙🇺🇦 @eriksontheimer.bsky.social · 29/04/2026
Site-specific, multi-kilobase insertions and over-writes in mammalian cells, without DSBs, HDR, recombinases, integrases, transposases, or active cell cycling? Using fully or predominantly single-stranded DNA donors? 1/15
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Andrew G. York @andrewgyork.bsky.social · 29/04/2026
Meet MagLuc: a magnetically-controlled luminescent protein. This is a foundational tool for remote control of biological processes, also known as "magnetogenetics". Can you tell when the magnetic field turns on and off? From @mariaingaramo.bsky.social and the team at @nonfictionlabs.bsky.social
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Emily Kolenbrander Ho @emkolen.bsky.social · 22/04/2026
New review on optogenetics in development is out in @genesdev.bsky.social with @toettch.bsky.social and Yang Gao! 💙💡🔦 genesdev.cshlp.org/content/earl... We aim to capture why opto is such a powerful tool for devbio and how future advances can make it even better. Some highlights:
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Pam Herd @pamherd.bsky.social · 22/04/2026
The number of NIH competitive awards is down 50% from 2025, and down ~70% from prior years. Even if they catch up by the end of the year, only wealthy institutions can bridge these huge funding gaps.They're killing science-and violating the constitution-by weaponizing the bureaucracy
figure showing the trends I detail in the tweet text
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Gabriel Abrahams @gabriel-abrahams.bsky.social · 22/03/2026
Quantum biological control, now in a multicellular organism! Super exciting to see this work from @scburd.bsky.social et al 🧪
nature.com
Magnetic resonance control of spin-correlated radical pair dynamics in vivo - Nature
Magnetic resonance control of spin-correlated radical pairs alters red fluorescent protein emission in transgenic Caenorhabditis elegans, demonstrating in vivo magnetic field modulation of biomolecula...
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Addgene @addgene.bsky.social · 19/03/2026
Wondering what's the difference between Halorhodopsin and Channelrhodopsin? Curious how a plant photosensor domain could power your next gene editing experiment? Check out our Optogenetics Guide to learn about these tools and more to light up your lab! 🧠💡🔬
twp.ai
Addgene: Optogenetics Guide
Learn about using Optogenetics plasmids in your lab, including microbial opsins and optical switch systems.
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Robert Arkowitz @robertarkowitz.bsky.social · 09/03/2026
Ribosome Molecular Aging Shapes Translation Dynamics www.biorxiv.org/content/10.6...
biorxiv.org
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RamenSploosh @ramensploosh.bsky.social · 08/03/2026
daily #pokemon doodle 218 - #Slugma in a @beetlemoses.bsky.social style comic
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Michael Lin, MD PhD @michaelzlin.bsky.social · 01/02/2026
Today I'd like to honor the memory of my mentor and friend, Roger Tsien, born 1952 February 1. Today would have been Roger's 74th birthday. Most know Roger for his 2008 Chemistry Nobel Prize with Shimomura and Chalfie. Roger made GFP into the versatile imaging method it is now.
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Zikang (Dennis) Huang @dennishuang.bsky.social · 31/01/2026
Our new paper just out! pubs.acs.org/doi/10.1021/...
pubs.acs.org
Optogenetic Translocation to Subcellular Compartments through Regulation of Protein Avidity
Inducible translocation to subcellular compartments is a common strategy for protein switches that control a variety of cell behaviors. However, existing switches achieve translocation through induced...
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Gabriel Abrahams @gabriel-abrahams.bsky.social · 21/01/2026
Our research on magneto-sensitive fluorescent proteins and some of their applications has now been published! Huge thank you to the many many people involved in making this happen. 🧪 www.nature.com/articles/s41...
nature.com
Quantum spin resonance in engineered proteins for multimodal sensing - Nature
A recently developed class of magneto-sensitive fluorescent proteins are engineered to alter the properties of their response to magnetic fields and radio frequencies, enabling multimodal sensing of b...
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Arjun Raj @arjunraj.bsky.social · 30/12/2025
Blog post: Just quit Quitting projects in science is hard, but we should be doing a lot more of it. open.substack.com/pub/arjunraj...
open.substack.com
Just quit
Quitting projects in science is hard, but we should be doing a lot more of it.
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MPI for Biology Tübingen & Friedrich Miescher Laboratory @mpi-bio-fml.bsky.social · 09/12/2025
Here's another exciting doctoral project led by Research Group Leader Beatrice Ramm at the Friedrich Miescher Laboratory. Check the list of other available projects on our website: lnkd.in/gEMXNQY6 The application portal is open so apply now! #PhD #IMPRS #graduateprogram #maxplanck
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Rita Strack @ritastrack.bsky.social · 08/12/2025
Janelia is hiring! "Invent new imaging methods, molecular tools, or protein chemistry approaches" www.janelia.org/content/lead...
janelia.org
Lead a lab at Janelia
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H. B. Beryl Rappaport @hbrappap.bsky.social · 25/11/2025
So happy to announce our new preprint, “A geothermal amoeba sets a new upper temperature limit for eukaryotes.” We cultured a novel amoeba from Lassen Volcanic NP (CA, USA) that divides at 63°C (145°F) 🔥 - a new record for euk growth! #protistsonsky 🧵
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Alessandro De Simone @desimonelab.bsky.social · 20/11/2025
The lab’s first pre-print! We investigated how growth-inducing Erk activity waves are regulated in regenerating zebrafish scales. We discovered that Erk waves are followed by waves of expression of their own inhibitors, as predicted by excitable waves theory. tinyurl.com/26r2cmpj
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Cara Giovanetti @idontevencara.bsky.social · 26/10/2025
Domesticated animals have pulled our heavy carts and turned our large mills for centuries. But what about the opposite end of the spectrum—what if the wheel you want to turn is so small you can’t see it? Turns out we can harness the power of bacteria to power the world’s smallest machines. 1/7 ⚛️🧪
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Leslie B Vosshall PhD @leslievosshall.bsky.social · 09/10/2025
Great Job - Great Colleagues - Great Science👍 Help us pick the next generation of @hhmi.org Investigators, Freeman Hrabowski Scholars, Hanna Gray Fellows, Gilliam Fellows Relocation to DC is required, perfect for academic PIs looking for their next chapter hhmi.wd1.myworkdayjobs.com/External/job...
hhmi.wd1.myworkdayjobs.com
Senior Director - Scientific Officer
Primary Work Address: 4000 Jones Bridge Road, Chevy Chase, MD, 20815 Current HHMI Employees, click here to apply via your Workday account. The Howard Hughes Medical Institute (HHMI) advances the disco...
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Lucien Hinderling @lhinderling.bsky.social · 01/10/2025
Want to get started with smart microscopy? 🧠🔬 Check out our online repository with implementations from labs and industry -- lots of practical tips and links to sample code! smartmicroscopy.github.io/implementati... More details in the ✨updated preprint!✨ www.biorxiv.org/content/10.1...
screenshots of some of the sample implementationsScreenshot of smartmicroscopy.github.io/implementations.html, showing an overview of collected implementation examples
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John Ngo @johntngo.bsky.social · 22/09/2025
🚀 Our new paper is out @natmethods.nature.com! Kuffer & Marzilli engineered conditionally stable MS2 & PP7 coat proteins (dMCP & dPCP) that degrade unless bound to RNA, enabling ultra–low-background, single-mRNA imaging in live cells. 🔗 www.nature.com/articles/s41... 🧬 www.addgene.org/John_Ngo/
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Daniel J. Cohen (Princeton) @djcohen.bsky.social · 17/09/2025
SCHEPHERD--the bioelectric cell herding platform built for YOU. Single cells, monolayers, organoids--this herds them all + new tricks. Plz try it-- we will *give* you parts! Teaser here of a steering a single cell. GS Yubin Lin's lifeblood with J. Yodh on piano; Celeste R. and Paul K. Thread 1/N
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Daniel Krüger @danielkrueger.bsky.social · 06/09/2025
Out in @science.org! We found that the intestine doesn’t just push out cells when crowded. Instead, cells are in a mechanical tug-of-war, and weaker ones are extruded. A new view of how our gut keeps its balance and stays healthy. www.science.org/doi/10.1126/...
science.org
Epithelial tension controls intestinal cell extrusion
Cell extrusion is essential for homeostatic self-renewal of the intestinal epithelium. Extrusion is thought to be triggered by crowding-induced compression of cells at the intestinal villus tip. In th...
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Dr. Allyson Sgro @allysonsgro.bsky.social · 21/08/2025
Very excited to be co-organizing this meeting next February. Fellow collective behavior enthusiasts, this one is for you!
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Michalis Averof @michalis-averof.bsky.social · 08/08/2025
Latest paper elifesciences.org/articles/107... closes an important cycle in our efforts to study regeneration: week-long recordings allow us to observe the behaviour of cells during the entire course of regeneration in a crustacean leg – bright objects in movie are fluorescent nuclei of cells. 1/6
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Rita Strack @ritastrack.bsky.social · 29/07/2025
🤩Wow huge opportunity alert!
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jared toettcher @toettch.bsky.social · 22/07/2025
And for your Friday afternoon, some in vivo ERK and RTK biosensor eye candy :)
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Drug Monkey @drugmonkey.bsky.social · 17/07/2025
NIH will only accept six applications per PI per calendar year. drugmonkey.wordpress.com/2025/07/17/n...
drugmonkey.wordpress.com
NIH will only accept six applications per PI per calendar year.
NIH has issued NOT-OD-25-132 Supporting Fairness and Originality in NIH Research Applications which informs us that NIH will only accept six new, renewal, resubmission, or revision applications fro…
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Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 16/07/2025
I was explaining to my Ukrainian colleague the phrase ‘There’s no such thing as a free lunch’. She told me the equivalent in Ukrainian is ‘The only free cheese is in the mousetrap’ - which is so much better
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Alfonso Martinez Arias @amartinezarias.bsky.social · 15/07/2025
Two new preprints from the @arjunraj.bsky.social‬ on #gastruloids. Both excellent. Exploring the relationship between macroscopic reproducibility v microscopic heterogeneity. Stunning experiments and much to think about biorxiv.org/content/earl... biorxiv.org/content/earl...
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David Mick @mick-lab.bsky.social · 13/07/2025
Beautiful work on the development of protein kinase reporters. Congrats all! www.nature.com/articles/s41...
nature.com
Molecular recording of cellular protein kinase activity with chemical labeling - Nature Chemical Biology
Molecular recorders based on kinase activity-dependent protein labeling track specific kinase activities to understand their link to cellular phenotypes in heterogeneous cell populations and in vivo.
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Emily Kolenbrander Ho @emkolen.bsky.social · 01/07/2025
We built pYtags to detect RTK activity in Drosophila embryos and used them to learn about how developmental patterns form bsky.app/profile/emko...
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Emily Kolenbrander Ho @emkolen.bsky.social · 01/07/2025
Excited to share that our work building in vivo biosensors for receptor tyrosine kinases (pYtags!) is now out www.cell.com/cell-reports...
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Nature @nature.com · 25/06/2025
Nature research paper: Spatiotemporal orchestration of mitosis by cyclin-dependent kinase go.nature.com/444lRhe
go.nature.com
Spatiotemporal orchestration of mitosis by cyclin-dependent kinase - Nature
Experiments in fission yeast show that cyclin-dependent kinase is first activated in the nucleus, from which the mitotic signal is propagated from CDK at the centrosome to the cytoplasm.
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The Elowitz Lab at Caltech @elowitzlab.bsky.social · 03/06/2025
Synthetic biology could enable new types of programmable therapeutics. Our new preprint introduces synthetic protein circuits that selectively trigger cell death in Ras-mutant cancer cells, with interesting advantages compared to existing approaches. www.biorxiv.org/content/10.1...
biorxiv.org
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Craig McCormick @craigmccormick.bsky.social · 01/06/2025
This is incredible.
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jared toettcher @toettch.bsky.social · 29/05/2025
This is a beautiful paper first authored by a (brilliant) Princeton undergrad!
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Ed Boyden @eboyden3.bsky.social · 22/05/2025
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Michael Baym @baym.lol · 14/05/2025
Yesterday, the NIH R35 “Outstanding Investigator” grant to fund scientists in my lab studying antibiotic resistance was terminated for reasons not related to the content of the science, or any actions taken by me or members of my lab
A screenshot of the termination notice showing "Outstanding Investigator Grants"A screenshot of the termination notice with "This award is terminated effective the date of this award, due to unsafe antisemitic actions that suggest the institution lacks concern for the safety and wellbeing of Jewish students." highlighted
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John Wallingford @jbwallingford.bsky.social · 11/05/2025
“Punk isn’t a hairstyle; it’s getting your friends together to make useful stories outside approved systems” www.nytimes.com/2025/05/11/o...
nytimes.com
Opinion | Today’s Young People Need to Learn How to Be Punk
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Colin Carlson @colincarlson.bsky.social · 02/05/2025
I talked to Nature about the latest development at NSF, which is a five-alarm fire for American science. The scale of immediate impact is massive. We narrowly escaped this affecting @viralemergence.org for now, but will have to shut down in a few months if this stays. www.nature.com/articles/d41...
nature.com
Exclusive: NSF stops awarding new grants and funding existing ones
US science funder also plans to screen grant applications for compliance with ‘agency priorities’.
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jared toettcher @toettch.bsky.social · 21/04/2025
I'd like to share a little bit of happy lab news in these chaotic times: a new preprint, driven by the brilliant Qinhao Cao! www.biorxiv.org/content/10.1... We address a big challenge in synbio: If you give me a protein "X", how can I give you a version of X whose activity is controlled by a kinase?
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 16/04/2025
Our field has lost an amazing scientist, mentor, and old friend. Benny, along with Mike Hoffman, had a brilliant idea in the early 1980s. The first oncogenes were being cloned and they realized if we wanted to understand their roles in cancer, we needed to understand their normal function 1/n 🧪
Our colleague Prof. Benny (Ben Zion) Shilo passed away this morning 
@WeizmannScience
 . Benny worked at the forefront of world science in the study of molecular and developmental genetics. Among other things, he won the A.M.T. Prize in the field of genetics in 2013. He was also a great explainer of science, a kind teacher - and an artist photographer with a sharp eye and a sensitive soul. Benny, we will miss you very much. May his memory be blessed.
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