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Lan Mapa

@lanitorres-mapa.bsky.social
122 followers 378 following 12 posts

biophotonics and optics enthusiast. tweets scientific publication and everything else that I think are worth sharing. views are my own. 🚴🏻‍♀️🏓🧘🏻‍♀️🍚 🌱

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Reposted by Lan Mapa
Rosy Favicchio @rosyf.bsky.social · 07/10/2026
Now that #optogenetics has finally been acknowledged by the Nobel committee, it's time to get back to work! Looking to start or improve your neurostimulation experiments? @natprot.nature.com 🧪 🧠 Have a look at our protocols on the topic:
nature.com
Neurostimulation protocols
A collection of Protocols covering a wide range of optogenetic and non-genetic procedures that allow the stimulation of neuronal cell populations using ...
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Peter Rupprecht @ptrrupprecht.bsky.social · 18/08/2026
Interesting work from the lab of Na Ji on how axial imaging resolution (3.5- 20 um) affects the extraction of accurate neuronal signals. Very instructive! www.biorxiv.org/content/10.6...
biorxiv.org
High Axial Resolution Is Necessary for Quantitative Two-Photon Calcium Imaging of Neuronal Populations
Two-photon calcium imaging is a standard tool for measuring neuronal population activity in vivo , yet how axial resolution, sensor expression strategy, and analysis pipeline jointly affect data accur...
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Joyce Meiring @joycemeiri.bsky.social · 06/10/2026
Localized optogenetic microtubule severing in osteosarcoma cells by recruiting katanin (magenta) to microtubules (cyan).
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Physics World @physicsworld.bsky.social · 05/10/2026
Karl Deisseroth, Peter Hegemann and Georg Nagel win Nobel Prize for "discoveries concerning light-gated ion channels and optogenetics" - a breakthrough that enables mapping of the brain in a way that we could once only dream of. 🧪⚛️ physicsworld.com/a/inventors-...
physicsworld.com
Inventors of optogenetics win Nobel Prize in Physiology or Medicine – Physics World
Karl Deisseroth, Peter Hegemann and Georg Nagel are joint winners of the 2026 prize
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Jean-Yves Tinevez @jytinevez.bsky.social · 05/10/2026
We have a position open in our core facility in the @pasteur.fr . Please share it and / or apply! forum.image.sc/t/research-e...
forum.image.sc
Research engineer in Bioimage Analysis. Institut Pasteur, Image Analysis Hub - 2026
Dear all Below is an announcement for a permanent position as a Research Engineer in the Institut Pasteur, Paris. There is a flyer attached at the bottom. We are looking ideally for a Bioimage An...
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Karl Deisseroth @deisseroth.bsky.social · 01/06/2026
Directional elements: the preprints are out! 1/n Congratulations to our amazing team: biorxiv.org/content/10.6... biorxiv.org/content/10.6... biorxiv.org/content/10.6... We screened for principles governing global brain dynamics by developing a set of new methods: 1) conformal immersion microscopy;
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Nobel Prize @nobelprize.org · 05/10/2026
BREAKING NEWS The 2026 Nobel Prize in Physiology or Medicine has been awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel “for their discoveries concerning light-gated ion channels and optogenetics.”
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Matthijs Dorst @mattneuro.dorst-lab.org · 03/10/2026
Last year, Janos Fuzik and I organized a symposium on voltage imaging for the @fens.org regional meeting in Oslo. We then teamed up with our speakers to write a review on this. I am very happy to share that this review is now out in #EJN! #neuroscience 🧠 onlinelibrary.wiley.com/share/author...
onlinelibrary.wiley.com
Advances and Applications in Population Voltage Imaging
Reader environment loaded
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Nature Methods @natmethods.nature.com · 22/09/2026
Read the associated Research Briefing here: www.nature.com/articles/s41...
nature.com
Wireless neural recordings from groups of mice inside and outside the laboratory - Nature Methods
Studying the brain mechanisms of natural behaviors is experimentally challenging. We developed a miniaturized, wireless platform to record and manipulate neural and physiological activity in small ani...
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Nature Methods @natmethods.nature.com · 22/09/2026
A compact protein pair, FenixS and Ash1, heterodimerizes upon red light activation for optogenetics. @chemuoft.bsky.social @giangle-1.bsky.social www.nature.com/articles/s41...
nature.com
An ultralow-background far-red light-responsive optogenetic tool based on an engineered biliverdin-binding domain - Nature Methods
A compact protein pair that heterodimerizes upon red light activation, FenixS and Ash1, is developed for optogenetic applications.
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bioRxiv Biophysics @biorxiv-biophys.bsky.social · 22/09/2026
Emergent catch bonds from slip-like contacts: cooperative force-driven proofreading at receptor--ligand interfaces www.biorxiv.org/content/10.64898/20…
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Janelle Shane @janelleshane.com · 21/09/2026
Did you know I have a blog/newsletter you can sign up for? It's got cartoons and science (mostly lasers these days). You can even become a supporter to get occasional secret content and to help me pay my blog bill. www.aiweirdness.com/thasers-in-c...
aiweirdness.com
The lasers in Clash of the Titans
They used lasers for the god rays of Zeus in Clash of the Titans (1981) and I don't care what you say about the rest of the movie, the lasers are doing great.
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shivashriganesh.bsky.social @shivashriganesh.bsky.social · 21/09/2026
We’re excited to share BrainWideBench, a new benchmark for evaluating how models of neural activity generalize across animals and tasks! 📄 Check out the paper here! arxiv.org/abs/2609.22064 Special shoutout to @alx-adr.bsky.social, who contributed equally as co-first authors!
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jofmicroscopy.bsky.social @jofmicroscopy.bsky.social · 17/09/2026
🔬In this new paper, the authors show how a versatile, quantum-grade confocal microscope enables spatial mapping and comprehensive optical characterization of quantum emitters through emission intensity, rate, and photon-correlation measurements.
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Ricardo Henriques @henriqueslab.bsky.social · 15/09/2026
🔬🚀 Out now in Communications AI & Computing: mAIcrobe, our open-source napari plugin for high-throughput bacterial image analysis. Segmentation, morphological profiling and cell cycle classification, all in one place 👇 doi.org/10.1038/s44488-026-00022-y
Screenshot of the published article page. Software, Open access, published 15 September 2026. Title: mAIcrobe, an open-source framework for high-throughput bacterial image analysis. Authors: António D. Brito, Dominik Alwardt, Beatriz de P. Mariz, Sérgio R. Filipe, Mariana G. Pinho, Bruno M. Saraiva and Ricardo Henriques. Communications AI & Computing 1, article number 16 (2026), followed by the abstract.Diagram of the mAIcrobe workflow. Acquisition feeds into segmentation with StarDist, Cellpose and community models, then into morphological profiling and a three-class cell cycle classifier, ending in a feature-space scatter plot with three separated clusters.
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adamezracohen.bsky.social @adamezracohen.bsky.social · 10/09/2026
We wrote a tutorial guide on voltage imaging, now out in Neuron: authors.elsevier.com/a/1nlgh3BtfH... Indicators, microscopes, and software have all advanced to the point that it's not so hard -- you can now directly watch the electrical activity of neurons in live animals or in culture.
authors.elsevier.com
Please wait whilst we redirect you
All content on this site: Copyright © 2026 Elsevier B.V., its licensors, and contributors. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For all open access content, the relevant licensing terms apply.
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Misha Ahrens @mishaahrens.bsky.social · 09/09/2026
Whole-body cellular activity imaging in zebrafish, headed by Virginie Ruetten @vmsruetten.bsky.social - new paper is out: www.nature.com/articles/s41...
nature.com
Imaging cellular activity across all organs reveals body-wide circuits - Nature
An imaging system developed to record cellular activity throughout the whole body of zebrafish captures cellular organ dynamics and identifies multiple distributed circuits.
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AI x Bio Discovery @aixbiobot.bsky.social · 26/08/2026
vFLIM: Machine Learning-enabled Light Sheet Fluorescence Lifetime Imaging [new] This pipeline makes live, long-term, high-speed volumetric imaging of molecular environments, tension, and metabolism feasible.
vFLIM: Machine Learning-enabled Light Sheet Fluorescence Lifetime ImagingFigure 1Figure 2Figure 3
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Lan Mapa @lanitorres-mapa.bsky.social · 23/08/2026
Nice article on writing fellowhips and competitive grants. www.nature.com/articles/d41...
nature.com
I won three competitive grants in a row. Here’s how I learnt what to do
It took time and rejections to understand what granting agencies look for. This is how I picked up application-writing skills.
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Lan Mapa @lanitorres-mapa.bsky.social · 22/08/2026
Jason Arday: We Must Rage – Rage Against the Journalism of Cruelty – Byline Times bylinetimes.com/2026/08/19/j...
bylinetimes.com
Jason Arday: We Must Rage – Rage Against the Journalism of Cruelty
The death of the academic shows the casual conversion of humiliation into entertainment by a media running on monetised hate and cruelty
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Emma Monk @monkemma.bsky.social · 22/08/2026
One of the first "outrageous" claims I saw as Jason Arday's media hounding unfolded was that he ran 30 marathons in 35 days! Wow! What a thing to claim! And the newspapers all suggested there was no evidence he actually did it. Well, they clearly didn't look very hard 🙄 🧵 1/26
Photo after Jason's final marathon taken from his archived blog showing Jason surrounded by supporters in orange charity t-shirts
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bioRxiv Biophysics @biorxiv-biophys.bsky.social · 20/08/2026
Modulating hydrogel architecture via cross-linker length for high-resolution tissue imaging and photochemical sectioning www.biorxiv.org/content/10.64898/20…
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Lan Mapa @lanitorres-mapa.bsky.social · 12/08/2026
partial eclipse in Hannover! Courtesy of our humble colander
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jofmicroscopy.bsky.social @jofmicroscopy.bsky.social · 06/08/2026
🔬The authors of this new paper demonstrate multimodal imaging of live cell co-cultures, including quantitative phase imaging (QPI) through differential phase contrast (DPC) imaging. "Multimodal illumination for quantitative transmitted-light microscopy" doi.org/10.1111/jmi.70156
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Nature Methods @natmethods.nature.com · 05/08/2026
An Analysis from @ptrrupprecht.bsky.social et al investigates the behavior of GCaMP8 variants in spike inference using different algorithms. www.nature.com/articles/s41...
nature.com
Spike inference from calcium imaging data acquired with GCaMP8 indicators - Nature Methods
In this Analysis, Rupprecht et al. investigate the behavior of GCaMP8 variants in spike inference using several different algorithms. They highlight the role of the indicators’ linearity in the infere...
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CIBSS – Centre for Integrative Biological Signalling Studies @cibss.bsky.social · 05/08/2026
📣 #JobAlert The @biologyunifreiburg.bsky.social of @uni-freiburg.de invites applications for a position as Head of the Life Imaging Center (LIC) – the core facility for light microscopy. ❗ Application Deadline: 6 September, 2026 🔗 kurzlinks.de/2126 #Biology #LightMicroscopy #Imaging
Job alert for Head of Life Imaging Center with the application deadline (6 September).
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eurobioimaging.bsky.social @eurobioimaging.bsky.social · 31/07/2026
Our Virtual Pub is on summer break! ☀️ Perfect time to catch up on recordings you missed. 🔬 Parallel Microscopy? Watch here: youtu.be/emj8eExKN3o 🩻 Physical characterisation of a preclinical SPECT Scanner? Watch here: youtu.be/2a-JiWSKZuE
youtu.be
Parallel microscopy - implementations and applications
In this Virtual Pub recording, Gil Bub, McGill University, gave a talk on "Parallel microscopy - implementations and applications." Learn more about the Virtual Pub:…
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Gabriel Abrahams @gabriel-abrahams.bsky.social · 01/05/2026
MagLOV 2 plasmid is (finally!) available on Addgene 🎉🧲🧫 Any GFP capable imaging setup + benchtop power supply + off the shelf electromagnet is all you need to get started - let us know if you need help of course. www.addgene.org/252303/ @andrewgyork.bsky.social @mariaingaramo.bsky.social 🧪
addgene.org
Addgene: pGA-01-47
Plasmid pGA-01-47 from Dr. Harrison Steel's lab contains the insert MagLOV 2 and is published in Nature. 2026 Jan 21. doi: 10.1038/s41586-025-09971-3. This plasmid is available through Addgene.
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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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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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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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Nature Methods @natmethods.nature.com · 23/07/2026
FlatMux: an optimized microscope system for multiplexed 2-photon imaging of neuronal activity with voltage sensors. www.nature.com/articles/s41...
nature.com
A versatile platform for two-photon neuronal population voltage imaging across cortical depths - Nature Methods
FlatMux is an optimized microscope system for multiplexed two-photon imaging of neuronal activity with genetically encoded voltage sensors. The flexible system is demonstrated in a variety of scenario...
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Open Ephys @open-ephys.org · 23/07/2026
🚀 Open Ephys GUI v1.1.0 is here! This release brings major performance improvements for high-channel-count recordings (including Neuropixels 2.0 Quad Base probes), faster recording, a more capable LFP Viewer, real-time synchronization to Harp devices, and a range of UI enhancements.
open-ephys.org
Download the Open Ephys GUI — Open Ephys
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Rob Blackie @robblackie.bsky.social · 23/07/2026
Progress in cancer treatment is incredible. Here's a new pancreatic cancer treatment that is *tripling* survival rates after a year compared to chemotherapy.
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Robert Haase @haesleinhuepf.bsky.social · 23/07/2026
Blast from the past! Did you know you can create clean, readable notebooks for the ImageJ Macro language? A great way to build tutorials, teaching materials, and [mentally] reproducible image analysis workflows. 👨‍🏫📜🚀 github.com/haesleinhuep...
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Stephen Turner @stephenturner.us · 03/05/2026
Free and open-source images, icons, and tools for creating scientific illustrations doi.org/10.59350/5zt... 🧪
doi.org
Free and open-source images, icons, and tools for creating scientific illustrations
Phylopic, NIH Bioart, Bioicons, Scidraw, Open Science Art, Health Icons, Servier Medical Art, Biodiversity Heritage Library, the Noun Project, Segment Anything, Excalidraw, draw.io, Biographics
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Zikang (Dennis) Huang @dennishuang.bsky.social · 21/07/2026
Impressive closed loop control of optogenetics from the Toettcher lab. Crazy video on flipping cell migration by changing speed of egfr activation. These automated systems will generate more data driven hypotheses in the future. Congrats! www.cell.com/cell-systems...
cell.com
An optogenetic smart microscopy platform reveals signaling dynamics-dependent control over collective cell migration
Oatman et al. introduce PyCLM, a Python suite for closed-loop optogenetic experiments combining real-time biosensor measurement and segmentation of thousands of cells. The method is applied to epithel...
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c0nc0rdance @c0nc0rdance.bsky.social · 21/07/2026
This is how the tiger gets its stripes. Complex patterns produced by chemical circuits following simple rules: there's positive feedback (Rho/Ect2) & delayed negative feedback (Rho/F-actin/RGA-3/4) signaling molecules. The result are 'flickers' & 'pulse-mediated turbulence' in living cells.
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dianebissen.bsky.social @dianebissen.bsky.social · 20/07/2026
Back to Bluesky to share the most exciting news: my postdoctoral research is now published in Neuron! We used cricket hunting to show how ethological learning persistently rewires juvenile (but not adult!) visual circuits by co-opting homeostatic plasticity. Full story www.cell.com/neuron/fullt...
cell.com
Ethological learning during the critical period resets synaptic setpoints in mouse binocular visual cortex
Bissen et al. show that prey capture learning profoundly reshapes visual cortical circuitry and function during developmental critical periods, but not in adulthood. These learning-induced structural ...
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Nature Biotechnology @natbiotech.nature.com · 15/07/2026
High-fidelity fast fluorescence lifetime imaging by event-based denoising - @tsinghuauniversity.bsky.social www.nature.com/articles/s41...
nature.com
High-fidelity fast fluorescence lifetime imaging by event-based denoising - Nature Biotechnology
Event-based first-photon fluorescence lifetime imaging enables fluorescence lifetime imaging below one photon per pixel.
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Rita Strack @ritastrack.bsky.social · 14/07/2026
Wonshik Choi gave a talk last night at the biophotonics GRC that actually blew my mind. It covered the past ~10 years of work in his lab systematically trying to understand and correct for light scattering. I recommend reading his papers! This one is particularly strong imho doi.org/10.1038/s414...
doi.org
Tracing multiple scattering trajectories for deep optical imaging in scattering media - Nature Communications
Deep imaging in complex scattering media is hindered by multiple light scattering. Here, the authors proposed a method to trace multiple scattering trajectories in situ using a recorded reflection mat...
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Nature Methods @natmethods.nature.com · 14/07/2026
A standardized file format and open-source software suite for Brillouin microscopy from @prevedel-lab.bsky.social @kelsayad.bsky.social and colleagues. www.nature.com/articles/s41...
nature.com
Towards a standardized file format and open-source analysis framework for Brillouin microscopy data - Nature Methods
Nature Methods - Towards a standardized file format and open-source analysis framework for Brillouin microscopy data
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Simon F. Nørrelykke @simonfn.bsky.social · 14/07/2026
New resource for teaching and learning BioImage Analysis, long in the making, from @tischi.bsky.social and friends, incl. @carpentries.carpentries.org. With roots in the material developed for NEUBIAS workshops.
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Peter Rupprecht @ptrrupprecht.bsky.social · 22/06/2026
The YouTube channel of @kurzgesagt.org made a great and accessible video on how memories are stored in our brains. I wrote a blog post to provide additional context and details for those interested in the view of a neurophysiology researcher: gcamp6f.com/2026/06/22/w...
gcamp6f.com
What happens inside your brain when you form a memory?
Kurzgesagt is a Youtube channel that breaks down science topics for a broad audience. They have great videos, both in terms of narrative, animation, and scientific accuracy. A few days ago, the cha…
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adamezracohen.bsky.social @adamezracohen.bsky.social · 21/06/2026
Proud of this work from David Wong-Campos (@wongcamposd.bsky.social), Pojeong Park, Byung Hun Lee (@bhlee1117.bsky.social), and team: www.nature.com/articles/s41...
nature.com
Voltage dynamics of cortical dendrites in vivo - Nature Neuroscience
Simultaneous voltage imaging of soma and dendrites in layer 2/3 cortical neurons in live mice reveals rich dynamics of spike back-propagation, with amplitude shaped by spiking history, dendrite locati...
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allen institute @alleninstitute.org · 19/06/2026
Our #CellLineOfTheWeek is connexin-43 - illuminating gap junction proteins! 🧫✨ Our high-quality cell lines & plasmids are openly available to accelerate discovery. 📦 Distributed by @coriellinstitute.bsky.social & @addgene.bsky.social #FluorescenceFriday
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Kenji Sakurai @ksakurai007.bsky.social · 29/05/2026
X-rays can be generated by simple actions, such as peeling off Scotch tape. Breaking the molecular bonds in the tape’s adhesive triggers a discharge known as triboluminescence, which can convert energy into X-ray photons. Interesting paper. doi.org/10.1063/5.03...
pubs.aip.org
X-ray and electron emission from peeling adhesive tape
In the past years, x-ray emission from adhesive tape peeled in vacuum has been reported and investigated. The generation of x rays is driven by fast electrons g
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Nature Methods @natmethods.nature.com · 01/05/2026
PinkyCaMP: a red genetically encoded calcium indicator with improved brightness and stability. @massecklab.bsky.social www.nature.com/articles/s41...
nature.com
PinkyCaMP: an mScarlet-based calcium sensor with enhanced brightness, photostability and multiplexing capabilities - Nature Methods
PinkyCaMP 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...
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Philip Ball @philipcball.bsky.social · 20/02/2026
Some algae swim in circles, by exercising exquisite control of their breaststroke. And they switch direction under light of different intensity. Here's how. (No one is yet quite sure why.) physics.aps.org/articles/v19...
physics.aps.org
Algal Swimming Patterns Change with Light Intensity
In response to changes in illumination, a swimming microorganism reverses the direction of its circular trajectory by tilting its flagella’s planes of motion.
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