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Chen Zhang

@zchenstory.bsky.social
186 followers 400 following 10 posts

Bacteriologist studying S-layer 🔬🦠🧬 Postdoc at Rudner lab @harvardmed. PhD alumni @epfl

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Reposted by Chen Zhang
Suckjoon Jun’s lab at UCSD @junlab.bsky.social · 28/09/2026
1/5 Do you use GFP to measure protein abundance? Be very careful. Our new bioRxiv preprint shows that, under translation inhibition, fluorescence can stop tracking how much reporter protein is actually there. Please share widely.
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Petra Levin @redrockcity.bsky.social · 19/09/2026
4 years (!) in the making, in this review Jade Wang and I detail the fundamental processes underlying growth, the cell autonomous nature of homeostatic control, and the contribution of stochasticity to both. TL;DR Bacteria are more like teenagers than you think. www.nature.com/articles/s41...
nature.com
Bacterial growth rate in populations and single cells - Nature Microbiology
In this Perspective, Levin and Wang give a brief history of bacterial growth rate and discuss how it is connected to nutrient availability and macromolecule synthesis, with a focus on (p)ppGpp as a ce...
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Asher King @subtisilly.bsky.social · 02/09/2026
I am so excited to share my first first-author manuscript regarding the mysterious effects of magnesium in Bacillus subtilis! 🧵⬇️ www.biorxiv.org/content/10.6... #MicroSky
biorxiv.org
Magnesium induces iron starvation and metabolic rewiring to support the viability of cell envelope mutants and antibiotic-stressed cells
Magnesium supplementation permits deletion of otherwise essential genes involved in cell envelope biogenesis in the Gram-positive model bacterium Bacillus subtilis. Yet, the specific underlying mechan...
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Chen Zhang @zchenstory.bsky.social · 12/09/2026
my 3yo son starts to ask some complicated questions. Today he asks why can't I see the blades when the fan is running? I hope I explained in a good way. And this, reminds me a cool video that I watched youtu.be/QcUey-DVYjk?...
youtu.be
Astrophysicist Explains Gravity in 5 Levels of Difficulty | WIRED
YouTube video by WIRED
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anna brogan @apbrogan.bsky.social · 18/08/2026
This is now published! For those interested in microbial mechanotransduction: www.cell.com/current-biol...
cell.com
Microbial GAIN domains undergo autoproteolysis and enable release of diverse cell-surface-associated proteins
Brogan and Rudner report the identification of a microbial autoproteolytic domain that is structurally homologous to the GAIN domain of eukaryotic adhesion GPCRs. Rather than participating in transmem...
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Miloš Tišma @tismaa.bsky.social · 21/07/2026
I just still cannot help myself from looking that these beautiful real-time dynamics videos from @anjbadri.bsky.social lab! thanks to all the authors from @joeloparo.bsky.social / @anjbadri.bsky.social and TJ Ha labs.
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Paula Navarro @navarropaula.bsky.social · 03/07/2026
🚨 New in @natmicrobiol.nature.com! We reveal how the antibiotic target PBP1b fortifies the E.coli division site against osmotic rupture. Proud this was completed in our independent labs @dmf-unil.bsky.social, with @avettiger.bsky.social. Congratulations to all authors! 🦠❄️🔬 #teamtomo bit.ly/3SCbOg1 👇
doi.org
The penicillin-binding protein PBP1b fortifies the Escherichia coli division site against osmotic rupture - Nature Microbiology
A specific isoform of PBP1b functions independently of the activator protein, LpoB, to drive generation of a wedge-like peptidoglycan structure that strengthens the division site in Escherichia coli.
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anna brogan @apbrogan.bsky.social · 23/06/2026
Another chapter of my thesis is out! We asked whether we could pair proteome-wide AlphaFold screening with Tn-seq to identify biologically relevant protein-protein interactions. We identify ClcR (formerly YerH) as a component of the Rod complex in Gram-positive bacteria. www.pnas.org/doi/10.1073/...
pnas.org
A broadly conserved gram-positive lipoprotein regulates cell elongation | PNAS
The cell wall peptidoglycan (PG) protects virtually all bacteria from osmotic lysis and specifies cell shape. Synthesis of this exoskeleton is carr...
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Chen Zhang @zchenstory.bsky.social · 09/06/2026
when penicillin killing rod-shaped bacteria
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Tanmay Bharat @tbharat-lab.bsky.social · 08/06/2026
Disrupting phage liquid crystalline droplets restores antibiotic susceptibility in Pseudomonas aeruginosa biofilms out in @plosbiology.org by @abultarafder.bsky.social and team. Exciting collaboration with @geiselbiofilm.bsky.social @pearce-maths.bsky.social and others
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Ali Shaib @alishaib.bsky.social · 01/06/2026
Hello #world, meet 1,000× Expansion Microscopy. A small gel would grow to the size of an Olympic swimming pool, while amino-acid-scale distances become visible with ordinary light microscopy. Led by Helena Hu from @eboyden3.bsky.social's lab, in collab with us. Story: www.biorxiv.org/content/10.6...
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Tanmay Bharat @tbharat-lab.bsky.social · 25/05/2026
Sub-cellular chemical mapping using correlated cryogenic electron and mass spectrometry imaging online @natmethods.nature.com, led by Hannah Ochner, collaboration with @catfranco.bsky.social and @kiranrpatil.bsky.social labs doi.org/10.1038/s415...
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Sonja-Verena Albers @archaellum.bsky.social · 20/05/2026
New preprint! Cell division has to happen at the right place but how Archaea pick that place is unknown. We now identified a three-protein system, Dip, that positions the divisome at midcell in H. volcanii and is broadly conserved across Archaea. A thread 🧵 www.biorxiv.org/content/10.6...
biorxiv.org
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Matt Lycas @lycasworks.bsky.social · 27/04/2026
www.protocols.io/view/cryo-ex... New protocol alert!! Cryo-expansion microscopy of C. elegans and Tardigrades using the high pressure freezer!
protocols.io
Cryo-Expansion Microscopy of C. elegans and Tardigrades
Cryo-Expansion Microscopy of C. elegans and Tardigrades. Expansion microscopy (ExM) improves imaging r. Read full protocol, steps, and materials on protocols.io
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Juan C. Landoni @jclandoni.bsky.social · 03/04/2026
Our paper is now out in Science! Super excited to share our discovery that #mitochondria #pearling is the elusive mechanism driving the regular distribution and inheritance of #mtDNA nucleoids 🧬 [1/6]
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STCmicrobeblog @stcmicrobeblog.bsky.social · 07/03/2026
(bacterial) chromosome segregationists take note 👇 membrane-anchoring of the 𝘰𝘳𝘪𝘊 region to ensure proper daughter chromosome segregation after replication initiation – proposed decades ago but never substantiated... 👉now shown for 𝘚. 𝘢𝘶𝘳𝘦𝘶𝘴 by mariana pinho's lab
figure 10 
from Jacob, F., Brenner, S., and Cuzin, F. (1964) Cold Spring Harbor Symp. Quant. Biol. 28, 329-348
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Géraldine Laloux @lalouxlab.bsky.social · 05/03/2026
#MicroSky Please RT @erc.europa.eu-funded postdoc position in my lab to identify the molecular basis of prey-predator interactions using our favorite micro-vampire Bdellovibrio exovorus as a model. Let's find what the bite is made of! 🧛 Flexible start date. Info: euraxess.ec.europa.eu/jobs/415877
euraxess.ec.europa.eu
Postdoctoral researcher in molecular and cellular bacteriology - ERC CoG VAMPIRE
The research group of Prof Géraldine Laloux at the de Duve Institute (UCLouvain) is looking for a highly motivated postdoc to elucidate the molecular factors underlying bacterial prey-predator interac...
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Science Magazine @science.org · 03/03/2026
Many of the scientists Jeffrey Epstein courted were already well-established and well-funded. So why didn’t they all just say no? Science talked with three who did just that. Here’s how Epstein approached them, and why they refused to have anything to do with him. ⬇️ scim.ag/40qbXnv
scim.ag
Meet three scientists who said no to Epstein
The warning signs included a web search, a mother’s doubts, and inklings of a “sexist attitude”
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STCmicrobeblog @stcmicrobeblog.bsky.social · 22/02/2026
here is a comprehensive history of the use of agar in microbiology by corrado nai 👇 🙏 thx for pointing this out @microbingle.bsky.social earlier, corrado told the story of fanny angelina hesse in STC. #MicroSky
smallthingsconsidered.blog
Have you ever heard of Fanny An­gelina Hesse?
by Corrado Nai — A graphic novel about this forgotten woman in science is on its way – but it's unlikely to make an impact without the strong support from the microbiology community. If you have n…
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Ákos T Kovács @evolvedbiofilm.bsky.social · 18/02/2026
Bacillus thuringiensis and insects: a century of intimate history #JBacteriol #Minireview from Leyla Slamti and Didier Lereclus journals.asm.org/doi/10.1128/...
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Boston Bacterial Meeting @bostonbacteria.bsky.social · 12/02/2026
The moment you’ve all been waiting for… 🦠 SAVE THE DATE! 🦠 BBM2026 will be held from June 22nd - 23rd at Boston University’s George Sherman Union. Our featured speaker this year is Dr. Eric Skaar from Vanderbilt University! Registration opens soon! More info at: bostonbacterial.org #BBM2026
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Simon van Vliet @simonvanvliet.bsky.social · 11/02/2026
Excited to share first preprint from our lab! @giubotti.bsky.social found that antibiotic tolerance in multispecies biofilms follows a surprising spatial pattern: cells survive only at intermediate distances from a partner species. 🦠 Preprint: doi.org/10.64898/202...
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eLife @elife.bsky.social · 01/02/2026
Do microbes get more food by swimming or staying still? Turns out both work, and cilia help them pull in nutrients no matter the strategy. buff.ly/vK3GmK5
buff.ly
Should I stay or should I swim
Evolutionary pressures have shaped the feeding behaviours of aquatic microorganisms in alignment with the underlying physics of fluid flow.
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Matt Lycas @lycasworks.bsky.social · 20/01/2026
🔬🚨New preprint alert! 🚨🔬 We developed quantitative expansion microscopy (qExM) - a method to accurately count proteins in situ by combining expansion microscopy's improved labeling with statistical estimators borrowed from ecology www.biorxiv.org/content/10.6... #SuperResolution #CellBiology
biorxiv.org
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Chen Zhang @zchenstory.bsky.social · 08/01/2026
everytime I thought: "such a nice and straightforward idea why no one had tried" and when I tried: "damn I cannot make the plasmid"
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Jan-Willem Veening @veeninglab.com · 19/12/2025
Now online @natmicrobiol.nature.com! www.nature.com/articles/s41...
nature.com
Pneumococcal S protein coordinates cell wall modification and repair to resist host antimicrobials - Nature Microbiology
Streptococcal S protein activates a peptidoglycan cell wall repair and modification complex to promote resistance of Streptococcus pneumoniae to lysozyme and LL-37, and increase virulence during infec...
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anna brogan @apbrogan.bsky.social · 13/12/2025
Fer’s tour de force in B. anthracis is out! Fer got Tn-seq running, built an ordered knockout library, defined all essential sporulation genes, and found a peptidoglycan deacetylase inhibitor critical for engulfment. Including our first one-by-all Alphafold screen! journals.plos.org/plosbiology/...
journals.plos.org
Identification of sporulation genes in Bacillus anthracis highlights similarities and significant differences with Bacillus subtilis
How good is Bacillus subtilis as a model for the spore-forming pathogen Bacillus anthracis? Using high throughput genetics to identify B. anthracis sporulation genes and cytological analysis of the mu...
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Chen Zhang @zchenstory.bsky.social · 11/12/2025
always artist Julius!
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Aditya Kamat @adityakamat.bsky.social · 10/12/2025
1/Now published! We identify a novel regulatory layer underlying SOS response dynamic. Find a short summary about our findings below. journals.plos.org/plosbiology/... #MicroSky
journals.plos.org
Variability in intrinsic promoter strength underlies the temporal hierarchy of the Caulobacter SOS response induction
The bacterial SOS response unfolds in a defined temporal order, but the determinants of this hierarchy are unclear. This study shows that intrinsic promoter strength, modulated in part by sigma factor...
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Jie Xiao @jiexiaolab.bsky.social · 25/11/2025
‘Chromosomal Topological Domain Formation Modulates Transcription and the Coupling of Neighboring Genes in Escherichia coli‘ by Drs. Nico Yehya, Christopher Bohrer, and collaborators, is now available on bioRxiv. Check it out! doi: doi.org/10.1101/2025...
doi.org
Chromosomal Topological Domain Formation Modulates Transcription and the Coupling of Neighboring Genes in Escherichia coli
Chromosomal topology and transcription are tightly coupled, yet the quantitative impact of topological constraints on transcription, supercoiling, and the potential coupling between neighboring genes ...
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Jan-Willem Veening @veeninglab.com · 25/11/2025
Really cool paper from @vincentdebakker.bsky.social @jonbakerlab.bsky.social now published @natcomms.nature.com #MicroSky www.nature.com/articles/s41...
nature.com
Multi-omics profiling reveals atypical sugar utilization and a key membrane composition regulator in Streptococcus pneumoniae - Nature Communications
The pathogen Streptococcus pneumoniae can adapt to diverse microenvironments in the human body. Here, De Bakker et al. study these adaptation responses, showing unusual sugar utilization and identifyi...
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Vivek Mutalik @vivekmutalik.bsky.social · 19/11/2025
Hmmm This work has so many implications on literature 😳😬 Fluorescein-based dyes are not valid reporters of oxidative stress in bacteria, and conclusions based on their use must be reconsidered | PNAS www.pnas.org/doi/10.1073/...
pnas.org
Fluorescein-based dyes are not valid reporters of oxidative stress in bacteria, and conclusions based on their use must be reconsidered | PNAS
Dihydrodichlorofluorescein derivatives have been employed as reporters of intracellular reactive oxygen species (ROS) in innumerable studies. Their...
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Basler Lab @basler-lab.bsky.social · 17/11/2025
Happy to share our latest T6SS review: nature.com/articles/s41... Thank you, Jan, Danny (@dannyjamesward.bsky.social), Joana (@joanampereira.bsky.social), as well as reviewers and editors @natrevmicro.nature.com!
nature.com
The type VI secretion system and associated effector proteins - Nature Reviews Microbiology
In this Review, Basler and colleagues examine the type VI secretion system (T6SS), focusing on the diversity of antibacterial T6SS effectors and the evolutionary forces that shape them. They explain h...
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Tanmay Bharat @tbharat-lab.bsky.social · 13/11/2025
Assembly, architecture and functional roles of microbial surface layers Review article published in @natrevmicro.nature.com with @bupbuse.bsky.social, Andriko von Kügelgen and @vikramalva.bsky.social. S-layers are everywhere! www.nature.com/articles/s41...
nature.com
Assembly, architecture and functional roles of microbial surface layers - Nature Reviews Microbiology
Surface layers (S-layers) are ubiquitous protein assemblies that coat prokaryotic cells, with their functional roles increasingly coming into focus. In this Review, Isbilir and colleagues discuss rece...
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Chen Zhang @zchenstory.bsky.social · 21/07/2025
"Watermelon!" this is what my 2yo son calls 😂 --bacterial biofilm photograph at Harvard museum of nature history (guess it's congo red stained and hope never appears in watermelon)
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anna brogan @apbrogan.bsky.social · 17/06/2025
Very happy to share that a large part of my thesis work is out today: B. subtilis uses the second messenger c-di-AMP to modulate its turgor pressure in response to the state of its cell envelope. www.nature.com/articles/s41...
nature.com
Cyclic-di-AMP modulates cellular turgor in response to defects in bacterial cell wall synthesis - Nature Microbiology
Brogan et al. uncover a signalling pathway in which levels of the nucleotide second messenger c-di-AMP increase in response to defects in cell wall synthesis. This regulatory pathway decreases turgor ...
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Tanmay Bharat @tbharat-lab.bsky.social · 19/06/2025
The mechanics of a continuous self-assembling surface-layer aids cell division in an archaeon out in @pnas.org Tight collaboration with Sherman Foo, Alice Cezanne and @buzzbaum.bsky.social, Sulfolobus cryo-ET from @idocaspy.bsky.social www.pnas.org/doi/10.1073/...
pnas.org
A self-assembling surface layer flattens the cytokinetic furrow to aid cell division in an archaeon | PNAS
The surface layer or “S-layer” is a two-dimensional lattice of proteins that coats a wide range of archaea and bacteria in place of a cell wall or ...
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Chen Zhang @zchenstory.bsky.social · 13/05/2025
time to admit as a REAL bacteriologist
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Suliana Manley @sulianamanley.bsky.social · 06/04/2025
Our latest preprint www.biorxiv.org/content/10.1..., describes Willi Stepp’s project to make smart microscopy even gentler by doing event detection in phase contrast. We developed neural networks to detect mito-LD and mito-lysosome contacts, as well as mitochondrial pre-fission constrictions.
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Andrea Vettiger @avettiger.bsky.social · 03/04/2025
It has been coming a long way... happy to share our latest work with you: www.biorxiv.org/content/10.1... Here, we show the importance of septal fortification by the Class A Penicillin Binding Protein, PBP1b, in E. coli and provide a molecular mechanism for this function. (1/12).
biorxiv.org
The aPBP-type cell wall synthase PBP1b plays a specialized role in fortifying the Escherichia coli division site against osmotic rupture
A multi-protein system called the divisome promotes bacterial division. This apparatus synthesizes the peptidoglycan (PG) cell wall layer that forms the daughter cell poles and protects them from osmo...
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Matt Lycas @lycasworks.bsky.social · 01/04/2025
Expansion microscopy of a tardigrade
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Chen Zhang @zchenstory.bsky.social · 31/03/2025
Super glad to be one of the awardees!
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Mariana Pinho @pinholab.bsky.social · 29/03/2025
We have 3 positions for students who want to start a PhD in the next 12 months. If you like advanced fluorescence microscopy techniques and S. aureus cell biology, check links and apply(April 4) euraxess.ec.europa.eu/jobs/325394 euraxess.ec.europa.eu/jobs/325395 euraxess.ec.europa.eu/jobs/325396
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STCmicrobeblog @stcmicrobeblog.bsky.social · 17/03/2025
schaechter.asmblog.org/schaechter/2... #MicroSky
schaechter.asmblog.org
Wait, What? extracurricular DNA (eDNA)
by Christoph — Among biologists, DNA is a household term, the acronym for desoxyribonucleic acid, which hardly anyone pronounces in full. But can you find your way around the zoo of prefixes that are ...
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Dame lab at Leiden University @damelab.bsky.social · 20/02/2025
In @molecularmicro.bsky.social: two special issues on Prokaryotic Chromosome Organization. Many excellent contributions, including a vision article: 'Future directions of the Prokaryotic Chromosome Field', outcome of BioPhyChrom 2023 @biophychrom.bsky.social onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Future Directions of the Prokaryotic Chromosome Field
In September 2023, the Biology and Physics of Prokaryotic Chromosomes meeting ran at the Lorentz Center in Leiden, The Netherlands. As part of the workshop, those in attendance developed a series of ....
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Ed Boyden @eboyden3.bsky.social · 11/03/2025
Expansion microscopy (ExM) of the entire mouse body (pubs.acs.org/doi/10.1021/...), developed by the labs of Profs. Jae-Byum Chang and Young-Gyu Yoon (former SynthNeuro postdocs running labs at KAIST), could empower studies of how multiple systems (nervous, immune, etc.) interact across scales.
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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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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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Boston Bacterial Meeting @bostonbacteria.bsky.social · 01/02/2025
SAVE THE DATE ‼️ 📆 📢 BBM 2025 will be held on June 9-10th at the Harvard Science Center feat. the one and only Dr. Petra Levin as keynote! We can't wait to see you there. Registration and scholarship applications open next week.
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