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Luciano A. Masullo

@lumasullo.bsky.social
848 followers 386 following 77 posts

Physicist | single molecules, biotech, nanotech, optics, fluorescence, glycans, immunology, cell signalling | Group Leader at Glycoscience Program IBYME

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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 11/03/2026
In DNA-PAINT, nearby proteins create overlapping localizations. You may see two by eye, but analysis often misses them, wasting precious precision. G5M solves this. Now in @natcomms.nature.com. doi.org/10.1038/s414.... 1/7
doi.org
Molecular mapping in DNA-PAINT via modified Gaussian Mixture Modeling - Nature Communications
Standard algorithms fail to fully exploit the spatial information in DNA-PAINT. Here, the authors present G5M, an algorithm providing molecular maps by accurately inferring biomolecule positions at di...
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Luciano A. Masullo @lumasullo.bsky.social · 24/02/2026
Honoured to receive the Young Fluorescence Investigator Award at #BPS2026! Huge thanks to the selection committee and to all the mentors and colleagues who supported me. Excited to start new projects and keep using fluorescence to uncover molecular biology!
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Reposted by Luciano A. Masullo
Yongdeng Zhang @yongdengzhang.bsky.social · 21/11/2025
We are happy to share our latest work, 4Pi-SIMFLUX, which combines structured illumination with interferometric detection to achieve near-isotropic 3D localization precision of 2–3 nm and resolve sub-10 nm structural features across whole mammalian cells. www.nature.com/articles/s41... rdcu.be/eQVxt
nature.com
4Pi-SIMFLUX: 4Pi single-molecule localization microscopy with structured illumination - Nature Methods
4Pi-SIMFLUX is a single-molecule localization microscopy approach that achieves a near-isotropic resolution below 10 nm in whole mammalian cells.
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Reposted by Luciano A. Masullo
EMBL Events @events.embl.org · 30/10/2025
We're excited to announce the poster prize winners of #EESImaging 🔬 A special poster prize committee elected three winners: Alara Kiris, @lumasullo.bsky.social and @wanluzhang.bsky.social. Congratulations! Read on to learn about their research: s.embl.org/ees25-09post...
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Reposted by Luciano A. Masullo
Nature Nanotechnology @natnano.nature.com · 17/10/2025
Now online: October 2025 Issue. - Focus Issue on #biosensing, - DNA moiré superlattices, - Sugars at Ångström-resolution, - Solid-state #nanopores, - Non-aqueous Li #batteries, - - Neuromorphic vision, - Peptide #hydrogels, - Deep learning for #LNPs and more... www.nature.com/nnano/volume...
The image on the cover shows two sugars from the same cell-surface glycan separated by 9 Å, visualized with RESI (resolution enhancement by sequential imaging) enabled by metabolic labelling with DNA barcodes.

IMAGE: Luciano A. Masullo, Max Planck Institute of Biochemistry,  Germany.

COVER DESIGN: Vanitha Selvarajan

Original paper: Masullo, L.A.,  et al. Ångström-resolution imaging of cell-surface glycans. Nat. Nanotechnol. 20, 1457–1463 (2025). https://doi.org/10.1038/s41565-025-01966-5

Abstract: Glycobiology is rooted in the study of monosaccharides, ångström-sized molecules that are the building blocks of glycosylation. Glycosylated biomolecules form the glycocalyx, a dense coat encasing every human cell with central relevance—among others—in immunology, oncology and virology. To understand glycosylation function, visualizing its molecular structure is fundamental. However, the ability to visualize the molecular architecture of the glycocalyx has remained challenging. Techniques such as mass spectrometry, electron microscopy and fluorescence microscopy lack the necessary cellular context, specificity and resolution. Here we combine resolution enhancement by sequential imaging with metabolic labelling, enabling the visualization of individual sugars within glycans on the cell surface, thus obtaining images of the glycocalyx with a spatial resolution down to 9 Å in an optical microscope.
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Luciano A. Masullo @lumasullo.bsky.social · 18/10/2025
Our article "Ångström-resolution imaging of cell-surface glycans" made it to the cover of Nature Nanotechnology! 🤩 @natnano.nature.com www.nature.com/nnano/volume...
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Luciano A. Masullo @lumasullo.bsky.social · 06/10/2025
Thrilled to announce some big news! Excited to share that I’ve been awarded a Wellcome Trust Early Career Award to establish my research as a Group Leader in the Glycosciences Program at the Institute of Biology and Experimental Medicine (IBYME) in Buenos Aires, Argentina, beginning in early 2026.
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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 02/10/2025
Within this neuronal atlas we can reveal the three synapse classes, excitatory, inhibitory and the recently discovered mixed synapse. Organelle imaging of Peroxisomes (Pmp70) and the Golgi Apparatus (Golga5) reveals rare contact sides and even fused particles. (5/6)
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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 02/10/2025
To show the power of the technique, we acquired a 13-plex 200 x 200 µm2 neuronal atlas in 3D. With this atlas we map the interaction architecture of three neurons, resolving organelles, cytoskeleton, vesicles and synapses at single-protein resolution. (4/6)
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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 02/10/2025
We demonstrate speed-optimized left-handed DNA-PAINT by characterizing the sequence binding kinetics and resolving three main microscopy benchmarking targets, mitochondria, microtubules and nuclear pore complexes with <5 nm localization precision. (3/6)
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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 02/10/2025
The mirrored design of left-handed oligonucleotides allows the extension of the common 6 speed-sequences R1-R6 with their analogs L1-L6, enabling 12 target multiplexing with a standard secondary label-free DNA-PAINT workflow. (2/6)
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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 02/10/2025
Highly efficient 12-color multiplexing with speed-optimized DNA-PAINT. We are excited to share our latest paper in @natcomms.nature.com, using left-handed DNA to extend speed-optimized DNA-PAINT to 12 targets in a simple and straightforward way! 🧬👈🚀https://www.nature.com/articles/s41467-025-64228-x
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Reposted by Luciano A. Masullo
Max Planck Institute for Medical Research @mpi-mr.bsky.social · 02/10/2025
📣 📅 Invitation to two talks at our institute next Tuesday, October 7: 🤩 Luciano Masullo @lumasullo.bsky.social from @mpibiochem.bsky.social at 10 am, Adam Cohen @harvard.edu at 3pm, also online: us06web.zoom.us/webinar/regi... #maxplanck #mpimr #colloquium #medicalresearch #sciencetalks #science
One talk by Luciano Masullo at 10 am and another talk at 3 pm by Adam Cohen, both next Tuesday, October 7, at the MPI for Medical Research Heidelberg.
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Luciano A. Masullo @lumasullo.bsky.social · 30/09/2025
Happy to share this article with my views on @elislenders.bsky.social and @vicidominilab.bsky.social work and discussing current developments in single-molecule localization combining structured excitation and detection. So many exciting perspectives in the field! www.nature.com/articles/s41...
nature.com
Localization of single molecules with structured illumination and structured detection - Light: Science & Applications
Light: Science & Applications - Localization of single molecules with structured illumination and structured detection
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Luciano A. Masullo @lumasullo.bsky.social · 30/07/2025
Ångström-resolution imaging of cell-surface glycans Now published in Nature Nanotechnology! 🤩 @natnano.nature.com www.nature.com/articles/s41...
nature.com
Ångström-resolution imaging of cell-surface glycans - Nature Nanotechnology
By combining bioorthogonal metabolic labelling and resolution enhancement through sequential imaging of DNA barcodes, the molecular organization of individual sugars in the native glycocalyx has been ...
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Reposted by Luciano A. Masullo
Nature Nanotechnology @natnano.nature.com · 28/07/2025
New paper online: Ångström-resolution imaging of cell-surface glycans. The molecular organization of sugars in the native #glycocalyx has been resolved at 9 ångström using bioorthogonal metabolic labeling and #superresolution imaging of DNA barcodes. #Glycotime www.nature.com/articles/s41...
nature.com
Ångström-resolution imaging of cell-surface glycans - Nature Nanotechnology
By combining bioorthogonal metabolic labelling and resolution enhancement through sequential imaging of DNA barcodes, the molecular organization of individual sugars in the native glycocalyx has been ...
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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 28/07/2025
Congratulations to everyone involved: @ipachmayr.bsky.social, @lumasullo.bsky.social, @susannereinhardt.bsky.social, Jisoo Kwon, Ondřej Skořepa, Maite Llop, Sylvia Herter, Marina Bacac and Christian Klein. (6/6) Read the full story here: www.nature.com/articles/s41...
nature.com
Resolving the structural basis of therapeutic antibody function in cancer immunotherapy with RESI - Nature Communications
The nanoscale organization of the antigen-antibody complexes influences the therapeutic action of monoclonal antibodies. Here, the authors present a multi-target 3D RESI imaging assay for the nanomete...
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Reposted by Luciano A. Masullo
Cecilia Zaza @ceciliazaza.bsky.social · 30/05/2025
Can we break past the usual limits of #SuperResolution #Microscopy—achieving deep-imaging, high-res, large FOV imaging without the trade-offs? 🧬🔬 YES: with #DNA_PAINT + Spinning Disk Confocal + Optical Photon Reassignment (#SDC-OPR)! 📄 www.nature.com/articles/s41... @natcomms.nature.com! 🧵👇
nature.com
Super-resolution imaging in whole cells and tissues via DNA-PAINT on a spinning disk confocal with optical photon reassignment - Nature Communications
Zaza and colleagues demonstrate that DNA-PAINT on a spinning disk confocal microscope with optical photon reassignment enables high-resolution imaging across large fields and imaging depths, resolving...
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Reposted by Luciano A. Masullo
NanoTag Biotechnologies @nanotag.bsky.social · 13/05/2025
A new study by @jungmannlab.bsky.social presents #SPINNA, a model-based tool for quantifying protein stoichiometry, oligomerization state, and spatial arrangement from super-resolution data.🔬For precise labeling of #GFP & #mCherry fusion proteins researchers used our #nanobodies 😊 📄 bit.ly/4jTHfes
bit.ly
Spatial and stoichiometric in situ analysis of biomolecular oligomerization at single-protein resolution - Nature Communications
Extracting quantitative information on biomolecular oligomerisation with high resolution remains a significant challenge. Here, the authors propose SPINNA, a framework that compares nearest-neighbour ...
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Luciano A. Masullo @lumasullo.bsky.social · 07/05/2025
Very excited to present our latest work: SPINNA, an analysis framework and software package for single-protein resolution data! 🖥️🤩 We can directly quantify stoichiometry and oligomerization from super-res (DNA-PAINT, RESI) images!! 🧬🎨
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Reposted by Luciano A. Masullo
JungmannLab @jungmannlab.bsky.social · 07/05/2025
Spatial and stoichiometric in situ analysis of biomolecular oligomerization at single-protein resolution We are excited to present our latest work published in @natcomms.nature.com www.nature.com/articles/s41...
nature.com
Spatial and stoichiometric in situ analysis of biomolecular oligomerization at single-protein resolution - Nature Communications
Extracting quantitative information on biomolecular oligomerisation with high resolution remains a significant challenge. Here, the authors propose SPINNA, a framework that compares nearest-neighbour ...
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Reposted by Luciano A. Masullo
Adam Glaser @adamkglaser.bsky.social · 02/05/2025
To look into: a Python alternative to ZEMAX... github.com/HarrisonKram...
github.com
GitHub - HarrisonKramer/optiland: Comprehensive optical design, optimization, and analysis in Python, including GPU-accelerated and differentiable ray tracing via PyTorch.
Comprehensive optical design, optimization, and analysis in Python, including GPU-accelerated and differentiable ray tracing via PyTorch. - HarrisonKramer/optiland
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Luciano A. Masullo @lumasullo.bsky.social · 30/04/2025
I had a blast visiting the lab of Prof. Peng Xi at Peking University!! Prof. Xi and his team are doing amazing work on various type of SIM and other imaging modalities! Thanks so much for the warm welcome, the stimulating discussions, and the campus tour!!
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Luciano A. Masullo @lumasullo.bsky.social · 28/04/2025
Amazing visit to the lab of Prof. Wei Ji at the Institute of Biophysics (CAS) in Beijing today! They’re doing top-notch research, including awesome interferometric single-molecule localization methods (ROSE) thanks so much for the invitation, warm welcome and hospitality!! 😍🤩
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Luciano A. Masullo @lumasullo.bsky.social · 13/04/2025
#FOM2025 in Taiwan starting now!! Looking forward to great talks and also to tell about RESI and our latest work!
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Reposted by Luciano A. Masullo
Monique Honsa @moniquehonsa.bsky.social · 10/04/2025
IMAGING LIGAND-RECEPTOR INTERACTIONS AT SINGLE-PROTEIN RESOLUTION WITH DNA-PAINT🔬 Ever wonder how cells "talk"? It starts when ligands bind to receptors on cell surfaces. We have cracked the challenge of imaging small ligands on cell surfaces. #DNAPAINT #celltalk 💬 doi.org/10.1002/smtd...
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Luciano A. Masullo @lumasullo.bsky.social · 10/04/2025
Check-out this powerful application of DNA-PAINT and RESI: imaging ligand-receptor interactions at molecular resolution! Project led by my extremely talented colleagues Monique Honsa, Larissa Heinze and Isabelle Pachmayr Very happy to have contributed to this beautiful work! 🤩
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Reposted by Luciano A. Masullo
Eva-Maria Schentarra @evaschentarra.bsky.social · 07/04/2025
One month ago today, I published my first paper with the @jungmannlab.bsky.social 🥳 What better way to celebrate #MicroscopyMonday than with this STAR Protocol on SUM-PAINT spatial proteomic imaging: a guide for highly multiplexed DNA-PAINT imaging in neurons. star-protocols.cell.com/protocols/4066
star-protocols.cell.com
Cell Press: STAR Protocols
STAR Protocols is an open access, peer-reviewed journal from Cell Press. We offer structured, transparent, accessible, and repeatable step-by-step experimental and computational protocols from all are...
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Reposted by Luciano A. Masullo
Christophe 🔬 Leterrier @christlet.bsky.social · 23/03/2025
An interesting preprint from the Horrocks' lab detailing the behavior of secondary nanobodies (such a @nanotag.bsky.social ones) at the single molecule level and optimizing protocols for multiplexed labeling: doi.org/10.1101/2025...
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Reposted by Luciano A. Masullo
Altmetric @altmetric.com · 13/03/2025
Mike spotted this before the rest of us. 🫡 Publications from 2025 are shared more on Bluesky than on X/Twitter.
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Reposted by Luciano A. Masullo
Kristina @jekristina.bsky.social · 07/03/2025
To anyone who were excited for the release of SUM-PAINT, we now published a detailed protocol on to how replicate it in your hands! Check it out here: doi.org/10.1016/j.xp...
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Reposted by Luciano A. Masullo
Ryan Flynn @raflynn5.bsky.social · 27/02/2025
Excited to share the work of Jonathan Perr where he uncovered a surprisingly common feature of cell surfaces - the presentation and clustering of RNA binding proteins with #glycoRNA. Critically support by #NIH @cp-cell.bsky.social www.cell.com/cell/abstrac...
cell.com
RNA-binding proteins and glycoRNAs form domains on the cell surface for cell-penetrating peptide entry
Mammalian cells present RNA-binding proteins on the cell surface that form clustered domains containing glycoRNAs.
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Reposted by Luciano A. Masullo
Julian Gargiulo @nano-juli.bsky.social · 26/02/2025
HIGH-RESOLUTION IN VIVO BRAIN IMAGING OF DROSOPHILA 🪰 New Preprint by Tassara et al.! www.biorxiv.org/content/10.1... #FluorescenceMonday #SnoutClub 1/6
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Luciano A. Masullo @lumasullo.bsky.social · 25/02/2025
Excellent resource for microscope builders! 🤓🪛🔬
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Reposted by Luciano A. Masullo
Alfred Millett-Sikking @amsikking.bsky.social · 21/02/2025
Just a start! Who's missing? go.bsky.app/LAA7Sdx
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Reposted by Luciano A. Masullo
Jörg Enderlein @joergenderlein.bsky.social · 18/02/2025
I'm thrilled to share that our review article, "Molecular Level Super-Resolution Fluorescence Imaging," has now been published online (www.annualreviews.org/content/jour...)! We provide a comprehensive overview of fluorescence super-res methods that push the limits towards molecular-scale imaging.
annualreviews.org
Molecular Level Super-Resolution Fluorescence Imaging | Annual Reviews
Over the last 30 years, fluorescence microscopy, renowned for its sensitivity and specificity, has undergone a revolution in resolving ever-smaller details. This advancement began with stimulated emis...
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Reposted by Luciano A. Masullo
James Manton @jamesdmanton.bsky.social · 12/02/2025
We present: Direct-view oblique plane microscopy www.biorxiv.org/content/10.1...
biorxiv.org
Direct-view oblique plane microscopy
The ability to rapidly image mesoscopic samples is critically important for many areas of biological research. Owing to its high throughput and gentle, volumetric imaging nature, light-sheet fluoresce...
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Reposted by Luciano A. Masullo
Karim Almahayni 🍉 @karimalmahayni.bsky.social · 11/02/2025
ÅNGSTRÖM-RESOLUTION IMAGING OF CELL-SURFACE GLYCANS 🍬🍭🔬 For the first time, we’re able to study the molecular architecture of the glycocalyx at single-sugar resolution—a longstanding challenge in glycobiology! #glycotime Preprint and #bluetorial below!!
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Luciano A. Masullo @lumasullo.bsky.social · 10/02/2025
ÅNGSTRÖM-RESOLUTION IMAGING OF CELL-SURFACE GLYCANS 🧬🎨🍬 The glycocalyx, our cells' sugar coat, holds secrets in immunology, cancer, viral infections, and more. Visualizing its molecular architecture was impossible… until now. #glycotime #microscopy www.biorxiv.org/content/10.1...
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Jörg Enderlein @joergenderlein.bsky.social · 24/01/2025
I am very proud to advertise our latest publication, "Super-Resolution Goes Viral: T4 Virus Particles as Versatile 3D-Bio-NanoRulers," in Adv. Materials: advanced.onlinelibrary.wiley.com/doi/full/10..... We propose to use T4 bacteriophages for calibrating 3D super-res fluorescence microscopy. 🧵
advanced.onlinelibrary.wiley.com
Super‐Resolution Goes Viral: T4 Virus Particles as Versatile 3D‐Bio‐NanoRulers
Various super-resolution fluorescence microscopy methods achieve nanoscale resolution, vital for visualizing subcellular structures. Choosing suitable biological standards is challenging, demanding p...
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Reposted by Luciano A. Masullo
Wiebke Jahr @wiebkejahr.bsky.social · 15/01/2025
🔬peeps! I am delighted to finally publish my code for controlling a spatial light modulator (SLM) to perform adaptive optics & to sculpt the vortex beams for STED & MINFLUX microscopy - complete w graphical user interface for easy use! github.com/wiebkejahr/s... Short user manual🧵
Image showing a GUI with many numeric inputs on the left side and color coded intensity maps, illustrating a workflow, on the right side.
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Reposted by Luciano A. Masullo
Christophe 🔬 Leterrier @christlet.bsky.social · 18/12/2024
A journal club on @lumasullo.bsky.social et al. RASTMIN paper (with explanations for non-microscopists audience) www.youtube.com/watch?v=ozKA...
youtube.com
Session 1 (Optical Physics): Think Like a Physicist—Clematis Training Program
YouTube video by Clematis Research Empowerment Hub
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Reposted by Luciano A. Masullo
Christophe 🔬 Leterrier @christlet.bsky.social · 11/12/2024
It's advanced talks day at #FOMISUR! Starting with @lumasullo.bsky.social demonstrating 30-color SUM-PAINT in neurons (doi.org/10.1016/j.ce...) as well as angstrom-resolution RESI (doi.org/10.1038/s415...)
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Luciano A. Masullo @lumasullo.bsky.social · 11/12/2024
Amazing talk by @christlet.bsky.social with stunning super-resolution images of neurons! 🤩 #FOMISUR
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Christophe 🔬 Leterrier @christlet.bsky.social · 09/12/2024
The #FOMISUR workshop has started! Joined the gang including @lumasullo.bsky.social for a local beer
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Luciano A. Masullo @lumasullo.bsky.social · 09/12/2024
#FOMISUR super-resolution microscopy workshop starts now! So happy to be here in my hometown Buenos Aires for this great event! Thanks to the organizers (Stefani Lab) for the invitation!
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Luciano A. Masullo @lumasullo.bsky.social · 27/11/2024
ÅNGSTRÖM-RESOLUTION FLUORESCENCE MICROSCOPY. Can we do structural biology with an optical microscope? Yes! Check out how we resolved *single bases of DNA* and much more using fluorescence microscopy, out on 24.05.2023 in Nature! @natureportfolio.bsky.social [re-post from Twitter]
nature.com
Ångström-resolution fluorescence microscopy - Nature
The authors introduce a single-molecule DNA-barcoding method, resolution enhancement by sequential imaging, that improves the resolution of fluorescence microscopy down to the Ångström scale using off...
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Luciano A. Masullo @lumasullo.bsky.social · 13/11/2024
We are live at the @LMU_Muenchen Physics Science Fair! Come to our poster to learn about what we do at the @JungmannLab! We have several research projects for students at Bachelor and Master level!
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