Reposted by Ryan FinkRobert Arkowitz @robertarkowitz.bsky.social · 30/09/2026www.biorxiv.org/content/10.6...biorxiv.orgFluorescent proteins misreport ribosome abundance under translation inhibitionFluorescent proteins are widely used as quantitative reporters of protein abundance in living cells. Here we show that this relationship can break down under translation inhibition: the cellular ribos... 0103
Reposted by Ryan FinkMichael Lin, MD PhD @michaelzlin.bsky.social · 29/09/2026Excited to share a new study from our lab in Cell: “Non-invasive control of gene editing in vivo by photoswitchable Cas12f and focused ultrasound” We engineered a compact CRISPR system that can be activated at specific locations in the body using focused ultrasound (🧵) www.cell.com/cell/fulltex...cell.comNon-invasive control of gene editing in vivo by photoswitchable Cas12f and focused ultrasoundRemote activation of a single-AAV-deliverable photoswitchable Cas12f system enables precise spatial and temporal control of genome editing in deep tissues without surgery or implanted devices. 1359
Reposted by Ryan FinkRachel Donka @racheldonka.bsky.social · 27/09/2026🚨New paper alert: Excited to share our journey to contrast how multiple dopamine sensors respond to acute morphine treatment. We first compared changes in dopamine transients in rats prepared with VTA DA GCaMP6f, NAcLS dLight1.3b or GRABDA2h 1/5 12512
Reposted by Ryan Finkpaveltomancak.bsky.social @paveltomancak.bsky.social · 18/09/2026In light of this growing controversy, I would like to direct attention to the stunning videos 2-31! www.nikonsmallworld.com/galleries/20...nikonsmallworld.comA tiny roundworm and a single-celled Dileptus explore their microscopic world | 2026 Small World in Motion CompetitionNguyen Nam Nhat - A tiny roundworm and a single-celled Dileptus explore their microscopic world 35515
Reposted by Ryan FinkTommaso Patriarchi @tpatriarchi.bsky.social · 12/09/2026Consider contributing to a forthcoming special issue of Neurophotonics on Intrinsic Neuromodulation: Measurement, Interpretation, and Links to Brain State and Behavior, which I am co-editing with Jennifer Resnik and Anna Devor. 172
Reposted by Ryan FinkMike Lacy @mlacyphd.bsky.social · 10/09/2026And check out gevibench.org for comparing and choosing among genetically encoded voltage indicators 👍gevibench.orgGEVIBench — Voltage Indicator BenchmarkCompare 70 genetically encoded voltage indicators by speed, brightness, sensitivity, and more. Interactive family tree, AP simulator, and spectral viewer. 021
Reposted by Ryan FinkReese Richardson @reeserichardson.bsky.social · 25/08/2026A massive update: At least ~15 companies~ are selling scientists antibodies using faked validation data. We've documented 18,000+ manipulated images on 17,000+ products sold by leading laboratory suppliers including Thermo Fisher, Abcam, Santa Cruz Biotechnology, Millipore Sigma and Bio-Techne. 1/🧵 18454329
Reposted by Ryan FinkOmaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦ @dudinlab.bsky.social · 26/08/2026If some of you are still wondering why we screen randomly purchased antibodies in ExM? Well, cuz we randomely find antibodies labelling key organelles and structures across many species... 4308
Reposted by Ryan FinkBita Moghaddam @bita137.bsky.social · 11/08/2026Love seeing entirely novel findings about dopamine Move over G proteins! Dopamine can regulate glutamate/NMDA directly and without second messenger systems: D2R physically couples GluN2B to suppress NMDA current directly 🤯 (congrats to team from Javitch & Ford labs) www.science.org/doi/10.1126/...science.orgDopamine D2 receptors bypass canonical signaling to directly tune NMDA receptor function and aversive learningDopamine acts at D2-NMDA receptor heteromers to control glutamatergic transmission and aversive learning. 15322
Reposted by Ryan FinkPeter Rupprecht @ptrrupprecht.bsky.social · 07/08/2026Excited to share our work now in Nature Methods! We wrote this manuscript to help others better analyze and interpret calcium imaging data. As a central aspect, we show why nonlinear behavior of calcium indicators matters in practice. Very happy about this work! 16017
Reposted by Ryan FinkJournal of Cell Biology @jcb.org · 20/07/2026Michaud, @andrewgoryachev.bsky.social, von Dassow, @xenresearchcenter.bsky.social et al. identify a versatile cortical pattern-forming circuit based on #Rho, F-#actin, Ect2, & RGA-3/4 rupress.org/jcb/article/... 📕 In "Collective Behaviors and Self-Organization in Cells" rupress.org/jcb/collecti... 07329
Reposted by Ryan FinkTommaso Patriarchi @tpatriarchi.bsky.social · 08/07/2026#FENS2026 – Friday 11:30–13:00. Paul Lamothe-Molina @neuronblaze presents nLightG2/nLightR2, next-gen norepinephrine sensors for in vivo use. Come by to talk GPCR indicators, photometry, 2P imaging, multiplexing, or troubleshooting. Poster PS07-10AM-018. Paper: doi.org/10.1038/s415... @PatriarchiLabdoi.orgNext-generation multicolor indicators for in vivo imaging of norepinephrine - Nature MethodsImproved 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... 092
Reposted by Ryan FinkKatherine Copsey @katcopseygreens.bsky.social · 08/07/2026Gather round for the story of the Very Hungry Data Centre... 🧵 (1/4) #datacentre #ai 3174101
Reposted by Ryan FinkBejaLabTechnion @bejalab.bsky.social · 02/07/2026Photoswitchable optoGPCRs for reversible control of Gs and arrestin signalling www.biorxiv.org/content/10.64898/2026.07.01.735182v1 0104
Reposted by Ryan FinkFelipe Opazo @opazo.bsky.social · 02/07/2026New paper! 🚀 A high-affinity anti- #mNeonGreen #nanobody turns #mNG into a #multifunctional Tag. @nanotag.bsky.social decided to openly share the #nanobody for research use. Not common, but we strongly believe well-defined reagents are key for reproducible science. We hope you find it useful! 💚 610051
Reposted by Ryan FinkPeter Rupprecht @ptrrupprecht.bsky.social · 30/06/2026Difficult! We can use the Hill equation parameter estimates (GC8s: KD=46 nM, n=2.2; GC6f: 375 nM, 2.3) to compute the fraction of calcium-bound fluorophors as ~1% for GC6f and 55% for GC8s at 50 nM (~neuronal resting). Somehow the bound fraction for GC8s seems too high, though, indicating that ... 121
Reposted by Ryan FinkAbhi Aggarwal @abhiaggarwal.bsky.social · 22/06/2026🟧 Orange is the new green?? 🟧 New sensitive orange calcium indicator (🟠OCaMP) now out in Nature Comms: www.nature.com/articles/s41... Highlights ⚡ Detects single action potentials in vivo 🔬 Optimized for 1030 nm imaging 📸 Highly photostable, minimal photoswitching 🌈 Multiplex with green biosensors 0309
Reposted by Ryan FinkDrLachie @drlachie.bsky.social · 12/06/2026Looking through an old hard-drive and found a file called: "oil_immersion_lens.mp4" - a previously unseen #microscopistsNightmares? 1295
Reposted by Ryan FinkDZNE research center @dzne.science · 25/05/2026New paper out: PinkyCaMP: an mScarlet-based calcium sensor with enhanced brightness, photostability and multiplexing capabilities.: Fink, Ryan; Imai, Shosei; Gockel, Nala Eileen; et al. Nature methods Vol. 23, no. 5, p. 998 - 1010 | Thanks for sharing #dzne #papersdlvr.itPinkyCaMP: an mScarlet-based calcium sensor with enhanced brightness, photostability and multiplexing capabilities.Fink, Ryan; Imai, Shosei; Gockel, Nala Eileen; et al. Nature methods Vol. 23, no. 5, p. 998 - 1010 062
Reposted by Ryan FinkMichael Lin, MD PhD @michaelzlin.bsky.social · 19/05/2026Happy to reveal our latest work, Microbe-Independent Deep Assembly and Screening (MIDAS), a method for engineering proteins >10x more cheaply and quickly than before. MIDAS addresses the slowest step in protein engineering — construction and expression of variants — by skipping cloning entirely 12710
Reposted by Ryan FinkJoachim Goedhart @joachimgoedhart.bsky.social · 19/05/2026Combining biosensor imaging data with an animated plot of the quantified intensity, based on a blog I wrote earlier: thenode.biologists.com/crafting-plo... In this version I used a dark theme 02910
Reposted by Ryan FinkNature Methods @natmethods.nature.com · 01/05/2026PinkyCaMP: a red genetically encoded calcium indicator with improved brightness and stability. @massecklab.bsky.social www.nature.com/articles/s41...nature.comPinkyCaMP: an mScarlet-based calcium sensor with enhanced brightness, photostability and multiplexing capabilities - Nature MethodsPinkyCaMP is a red genetically encoded calcium indicator with improved brightness and photostability. Derived from mScarlet, it does not exhibit photoswitching upon blue light illumination and is ther... 0168
Ryan Fink @finkryan.bsky.social · 24/04/2026PinkyCaMP is finally published!! My first paper co-first authored with @sikmys.bsky.social where we make a great optogenetic and multiplex compatible red calcium indicator. Thank you to @massecklab.bsky.social and @campbell-lab.bsky.social for guiding this journey www.nature.com/articles/s41...nature.comPinkyCaMP: an mScarlet-based calcium sensor with enhanced brightness, photostability and multiplexing capabilities - Nature MethodsPinkyCaMP is a red genetically encoded calcium indicator with improved brightness and photostability. Derived from mScarlet, it does not exhibit photoswitching upon blue light illumination and is ther... 14214
Reposted by Ryan FinkEvelyn Strickland @strickland-evelyn.bsky.social · 20/04/2026What if you got to work with some of your best friends on a science project? I can't publish how fun this was, but I can show you the data (🧵)! Last week, we posted our second neutrophil swarming paper to bioRxiv and I wanted to post my favorite videos here~ www.biorxiv.org/content/10.6... 315443
Reposted by Ryan FinkJoachim Goedhart @joachimgoedhart.bsky.social · 21/04/2026TIL "dynamic range" is used for two orthogonal biosensor properties. Which one is correct? 7174
Reposted by Ryan FinkJoachim Goedhart @joachimgoedhart.bsky.social · 13/04/2026📣 New preprint alert! Co-authored by @spalaciosm.bsky.social and @andreacaldarola.bsky.social : Quantitative imaging of calcium dynamics with a green fluorescent biosensor and fluorescence lifetime imaging www.biorxiv.org/content/10.6... 14317
Ryan Fink @finkryan.bsky.social · 27/03/2026Such a beautiful example demonstrating the importance of developing and using robust biosensors #FluorescenceFriday 192
Reposted by Ryan FinkTommaso Patriarchi @tpatriarchi.bsky.social · 27/03/2026Wait… localized norepinephrine transients in the awake visual cortex?! Who would have guessed this neuromodulatory signal is that spatially precise, right where visual processing is happening. Brain state control just got a lot more local. @ruedigersarah.bsky.social www.nature.com/articles/s41... 1110934
Reposted by Ryan FinkMark Peifer (He, him) @peiferlabunc.bsky.social · 16/03/2026Science professors and educators all have a role in combating this eugenics resurgence www.sciencedirect.com/science/arti... 312952
Reposted by Ryan FinkPablo J. Sáez @pjsaez.bsky.social · 16/03/2026This is why we love #CalciumSignaling Look how mechanical damage triggers long range Ca2+ waves in this plant !! By @annalisabellandi.bsky.social, who is now around here ;) Full www.science.org/doi/10.1126/... @science.org #microscopy #cell #mechanobiology 🧪🔬 319860
Reposted by Ryan FinkTommaso Patriarchi @tpatriarchi.bsky.social · 26/02/2026The 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...doi.orgNext-generation multicolor indicators for in vivo imaging of norepinephrine - Nature MethodsImproved 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... 45831
Reposted by Ryan FinkIlhan Omar @ilhanmn.bsky.social · 02/02/2026Abolish ICE. There’s no reforming it. There’s no compromise. There’s only one way to rein in ICE’s terror campaign. Abolish it. 784404018998
Reposted by Ryan FinkJoachim Goedhart @joachimgoedhart.bsky.social · 03/02/2026Great to see this officially out: An mTurquoise2-Based Glucose Biosensor - works in yeast & mammalian cells and is compatible with FLIM: pubs.acs.org/doi/10.1021/...pubs.acs.orgAn mTurquoise2-Based Glucose BiosensorGlucose is an important substrate for organisms to acquire energy needed for cellular growth. Despite the importance of this metabolite, single-cell information at a fast time-scale about the dynamics... 26823
Reposted by Ryan FinkMichael Lin, MD PhD @michaelzlin.bsky.social · 01/02/2026Today 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. 312023
Reposted by Ryan FinkTommaso Patriarchi @tpatriarchi.bsky.social · 18/01/2026An engineered nanobody inhibitor for molecular-to-circuit control of opioid receptor function. This was a really fun collaboration with @miriamstoeber.bsky.social and @amanglik.bsky.social labs, check it out! www.biorxiv.org/content/10.6...biorxiv.org 072
Reposted by Ryan FinkMark A. Hanson @hansonmark.bsky.social · 13/01/2026We've got ISSUES. Literally. We scraped >100k special issues & over 1 million articles to bring you a PISS-poor paper. We quantify just how many excess papers are published by guest editors abusing special issues to boost their CVs. How bad is it & what can we do? arxiv.org/abs/2601.07563 A 🧵 1/n 17514314
Reposted by Ryan Finkallen institute @alleninstitute.org · 07/01/2026In this mesmerizing video by our #ElectronMicroscopy team, a layer 5 thin tufted neuron is revealed with blue dendrites and purple axon. As it progresses, we zoom into where it connects to a pyramidal cell. Explore our EM data at: microns-explorer.org 0113
Reposted by Ryan FinkJoachim Goedhart @joachimgoedhart.bsky.social · 19/12/2025The 'Version of Record' of our paper came out on #FluorescenceFriday elifesciences.org/articles/105...elifesciences.orgA green lifetime biosensor for calcium that remains bright over its full dynamic rangeDirected evolution was used to engineer a green fluorescent biosensor for quantitative calcium imaging that remains fluorescent, yet shows a large change in lifetime in cells. 4328
Reposted by Ryan FinkJonas Wietek @jwietek.bsky.social · 05/12/2025@massecklab.bsky.social @finkryan.bsky.social 🥳👏🧠🐭🔬🧪🩷 0134
Reposted by Ryan FinkAddgene @addgene.bsky.social · 11/11/2025Fresh batch of Hot Plasmids here! Find new tools for: 🧠 Neural cell-surface proteomics 🔋 Nerve-to-cancer mitochondrial transfer @greletlab.bsky.social 🔬 Red calcium biosensors @massecklab.bsky.social & @piatkevich.bsky.social ✂️ CRISPRa-AAV for adipocytes @nadavahituv.bsky.social & more! 195
Reposted by Ryan Finkallen institute @alleninstitute.org · 17/11/2025What happens when you combine 10 years of brain data with one of the world’s fastest supercomputers? A virtual mouse cortex simulation, thanks to a global collaboration. 🧠📈 alleninstitute.org/news/one-of-worl… 23513
Reposted by Ryan FinkFalk Schneider @faldalf.bsky.social · 22/10/2025mStayRose is published in JBC 🥳🎉 Congratulations @wsctt.bsky.social @sporemohan.bsky.social and team for the monumental effort to make a non-natural amino acid incorporating fluorescent protein accessible. It's based on mStayGold, bright, and photostable: www.jbc.org/article/S002...jbc.orgStayRose: a photostable StayGold derivative red-shifted by genetic code expansionPhotobleaching of fluorescent proteins often limits the acquisition of high-quality images in microscopy. StayGold, a novel dimeric green fluorescent protein recently monomerised through sequence engi... 58628
Reposted by Ryan FinkLucas Farnung @lucas.farnunglab.com · 29/09/2025New week, new tool: Find our Protein Domain Designer tool to generate publication-ready protein domain diagrams here: domaindesigner.farnunglab.com 118666
Ryan Fink @finkryan.bsky.social · 29/08/2025Dying in the weather, but the views in Seoul are incredible 000
Ryan Fink @finkryan.bsky.social · 21/08/2025Very excited to be at the #KSBNS2025 in a few days! I’ll be presenting a poster in the first session (P-097) about our mScarlet based sensor for calcium PinkyCaMP and our developing mScarlet and 5HT1A based serotonin sensor. Stop by to talk and learn about this new generation of red sensors! 000
Reposted by Ryan FinkTanner Fadero @tanner-fadero.bsky.social · 19/08/2025How many photons are in a GFP? — more than last year, and more than you thought. Here's a simple, cheap, and practical method to break a fundamental limit in fluorescence microscopy. But it only works in light sheet! 26018
Reposted by Ryan FinkStudy of Religion as an Analytical Discipline Workshop @soraaad.bsky.social · 18/07/2025For those of you attending academic conferences in the U.S., after October 1, 2025 please note the following: 55967
Reposted by Ryan FinkYulong Li Lab @yulonglilab.bsky.social · 10/07/2025(1/3) Excited to introduce our new GRAB sensors for a series of steroid hormones! These tools enable real-time detection of steroid hormone dynamics in vivo🐭🧠. Happy to share these sensors and welcome any feedback! Please contact yulonglilab2018@gmail.com for information. 12310