Vatsal Sanjay
@comphy-lab.org
Fluid dynamicist | Assistant Professor, Physics Department, Durham University | ex-PoF (Univ. Twente) | IITR alum | soft-matter & non‑Newtonian flows (drops, bubbles, jets, sheets) | #FluidDynamics #SoftMatter #Drops #Bubbles #DNS
Reposted by Vatsal Sanjay
Watch the never-boring Pepijn Hoekstra explaining our work on #clogging from our labs! @utwente.bsky.social
www.youtube.com/shorts/ZYHiE...
www.youtube.com/shorts/ZYHiE...
Waarom wordt er altijd zo gedrongen bij de uitgang van een festival? #HoeZitUT?
YouTube video by University of Twente / Universiteit Twente
www.youtube.com
June 16, 2025 at 10:05 PM
Watch the never-boring Pepijn Hoekstra explaining our work on #clogging from our labs! @utwente.bsky.social
www.youtube.com/shorts/ZYHiE...
www.youtube.com/shorts/ZYHiE...
Reposted by Vatsal Sanjay
🎉 Congratulations to Dr. Jochem Meijer for winning the KIVI Hoogendoorn Fluid Mechanics Award 2024! His thesis "Particles, drops, and bubbles in gradient fields" was recognized as the best PhD thesis of 2023-24. Supervised by @detleflohse.bsky.social 👏 #FluidMechanics #PhD
May 28, 2025 at 1:41 PM
🎉 Congratulations to Dr. Jochem Meijer for winning the KIVI Hoogendoorn Fluid Mechanics Award 2024! His thesis "Particles, drops, and bubbles in gradient fields" was recognized as the best PhD thesis of 2023-24. Supervised by @detleflohse.bsky.social 👏 #FluidMechanics #PhD
@jnandeep.bsky.social (@poftwente.bsky.social) discussing his master thesis project on singularities with surfactants at the Max Planck meeting. How do surfactants influence coalescence of sessile drops? Teaser talk as Jnan explores the different dynamics across the Peclet-Marangoni parameter space
April 24, 2025 at 12:34 PM
@jnandeep.bsky.social (@poftwente.bsky.social) discussing his master thesis project on singularities with surfactants at the Max Planck meeting. How do surfactants influence coalescence of sessile drops? Teaser talk as Jnan explores the different dynamics across the Peclet-Marangoni parameter space
Reposted by Vatsal Sanjay
Introducing CyberDiver!
This new untethered robotic device is capable of actively controlling impact forces and splash dynamics during water entry.
arxiv.org/abs/2503.20702
Design source files:
github.com/harrislab-br...
Work led by #harrislab PhD student John.
This new untethered robotic device is capable of actively controlling impact forces and splash dynamics during water entry.
arxiv.org/abs/2503.20702
Design source files:
github.com/harrislab-br...
Work led by #harrislab PhD student John.
March 27, 2025 at 2:33 PM
Introducing CyberDiver!
This new untethered robotic device is capable of actively controlling impact forces and splash dynamics during water entry.
arxiv.org/abs/2503.20702
Design source files:
github.com/harrislab-br...
Work led by #harrislab PhD student John.
This new untethered robotic device is capable of actively controlling impact forces and splash dynamics during water entry.
arxiv.org/abs/2503.20702
Design source files:
github.com/harrislab-br...
Work led by #harrislab PhD student John.
Reposted by Vatsal Sanjay
This very cool paper, and Carl's very nice short thread describing the value of basic research in biology, may be of interest to @thecopperdoctor.bsky.social @oneofmanychris.bsky.social and others.
Pretty much everything is fucked, but here is some beautiful and exciting science from @archaeon-alex.bsky.social and colleagues.
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Tissue-like multicellular development triggered by mechanical compression in archaea
The advent of clonal multicellularity is a critical evolutionary milestone, seen often in eukaryotes, rarely in bacteria, and only once in archaea. We show that uniaxial compression induces clonal mul...
www.science.org
April 4, 2025 at 6:50 PM
This very cool paper, and Carl's very nice short thread describing the value of basic research in biology, may be of interest to @thecopperdoctor.bsky.social @oneofmanychris.bsky.social and others.
Reposted by Vatsal Sanjay
Some pictures from yesterday’s Wim-van-Saarloos-70-fest at the Dutch academy @knaw-nl.bsky.social. Happy birthday, Wim!
NB it’s the same room as where Pauli received his Lorentz medal.
NB it’s the same room as where Pauli received his Lorentz medal.
March 29, 2025 at 9:02 AM
Some pictures from yesterday’s Wim-van-Saarloos-70-fest at the Dutch academy @knaw-nl.bsky.social. Happy birthday, Wim!
NB it’s the same room as where Pauli received his Lorentz medal.
NB it’s the same room as where Pauli received his Lorentz medal.
So inspiring to hear my mentor, Detlef Lohse (@poftwente.bsky.social), share his scientific journey in this @thelhseries.bsky.social! His thoughts on curiosity, mentorship, and the "puzzle solving" joy of science resonate deeply. A must-watch! Always so much to learn. bit.ly/3DXBixh
"Living Histories". Detlef Lohse | #TheLivingHistoriesSeries
The Living Histories series: https://tinyurl.com/TheLHSeries Very brief "trajectory talks" on personal histories leading to the becoming of biological physicists / quantitative biologists / neuroscientists / mathematicians/ complexity scientists. Series concept: Srividya Iyer-Biswas Series organizers: Srividya Iyer-Biswas, Tapa Bhattacharjee, Jasmine Nirody, and Charlie Wright Series website: https://tinyurl.com/TheLHSeries
bit.ly
March 26, 2025 at 9:32 PM
So inspiring to hear my mentor, Detlef Lohse (@poftwente.bsky.social), share his scientific journey in this @thelhseries.bsky.social! His thoughts on curiosity, mentorship, and the "puzzle solving" joy of science resonate deeply. A must-watch! Always so much to learn. bit.ly/3DXBixh
Reposted by Vatsal Sanjay
Happy birthday to Pierre-Simon Laplace, the *actual* father of so called "Bayesian" Inference.
en.wikipedia.org/wiki/Pierre-...
en.wikipedia.org/wiki/Pierre-...
Pierre-Simon Laplace - Wikipedia
en.wikipedia.org
March 23, 2025 at 4:45 PM
Happy birthday to Pierre-Simon Laplace, the *actual* father of so called "Bayesian" Inference.
en.wikipedia.org/wiki/Pierre-...
en.wikipedia.org/wiki/Pierre-...
Reposted by Vatsal Sanjay
The Gallery of Soft Matter 2025 @apsdsoft.bsky.social has some amazing entries this year. Check them out here: engage.aps.org/dsoft/galler....
Make sure to vote! Not sure about the deadline, but there’s a QR code at the DSOFT table with all the details.
Make sure to vote! Not sure about the deadline, but there’s a QR code at the DSOFT table with all the details.
March 18, 2025 at 4:58 PM
The Gallery of Soft Matter 2025 @apsdsoft.bsky.social has some amazing entries this year. Check them out here: engage.aps.org/dsoft/galler....
Make sure to vote! Not sure about the deadline, but there’s a QR code at the DSOFT table with all the details.
Make sure to vote! Not sure about the deadline, but there’s a QR code at the DSOFT table with all the details.
Reposted by Vatsal Sanjay
📣 Heads up! During 2025 #BiophysicsWeek the Membrane Structure and Function Subgroup is hosting a Webinar about “Milestones and Future Directions” in our field! It’s intended to be pedagogically accessible, and if you don’t mind me also presenting, then please consider signing up and logging in! 🧪🧬
March 14, 2025 at 5:38 PM
📣 Heads up! During 2025 #BiophysicsWeek the Membrane Structure and Function Subgroup is hosting a Webinar about “Milestones and Future Directions” in our field! It’s intended to be pedagogically accessible, and if you don’t mind me also presenting, then please consider signing up and logging in! 🧪🧬
Reposted by Vatsal Sanjay
FRIDAY - MARCH 14, 2025
Albert Einstein’s Birthday (1879)
Also born on Pi-Day: Steph Curry, Simone Biles, and Billy Crystal
Albert Einstein’s Birthday (1879)
Also born on Pi-Day: Steph Curry, Simone Biles, and Billy Crystal
March 13, 2025 at 6:18 PM
FRIDAY - MARCH 14, 2025
Albert Einstein’s Birthday (1879)
Also born on Pi-Day: Steph Curry, Simone Biles, and Billy Crystal
Albert Einstein’s Birthday (1879)
Also born on Pi-Day: Steph Curry, Simone Biles, and Billy Crystal
Reposted by Vatsal Sanjay
Theo Jansen's Strandbeests are massive, wind-powered kinetic sculptures designed to roam Dutch beaches. Conceived as a way to kick up sand that would replenish nearby dunes, the beests have grown into a decades-long obsession for the artist.
fyfluiddynamics.com/?p=23401
fyfluiddynamics.com/?p=23401
March 12, 2025 at 5:00 PM
Theo Jansen's Strandbeests are massive, wind-powered kinetic sculptures designed to roam Dutch beaches. Conceived as a way to kick up sand that would replenish nearby dunes, the beests have grown into a decades-long obsession for the artist.
fyfluiddynamics.com/?p=23401
fyfluiddynamics.com/?p=23401
Reposted by Vatsal Sanjay
Excited to share our new paper in @pnas.org doi.org/10.1073/pnas...! Ice cubes often appear cloudy because, as water freezes, air bubbles get trapped and scatter light. But how does freezing rate affect the shape of the bubbles?
March 12, 2025 at 3:39 PM
Excited to share our new paper in @pnas.org doi.org/10.1073/pnas...! Ice cubes often appear cloudy because, as water freezes, air bubbles get trapped and scatter light. But how does freezing rate affect the shape of the bubbles?
Reposted by Vatsal Sanjay
The @ec-euclid.bsky.social mission to map part of the Universe has made a fascinating new discovery 💫
Our scientists are part of the team analysing the latest images from space 🔭
Read more 👉 tinyurl.com/bdze5xcy
#DUresearch #DUinspire @esa.int #Einstein
Our scientists are part of the team analysing the latest images from space 🔭
Read more 👉 tinyurl.com/bdze5xcy
#DUresearch #DUinspire @esa.int #Einstein
February 13, 2025 at 1:23 PM
The @ec-euclid.bsky.social mission to map part of the Universe has made a fascinating new discovery 💫
Our scientists are part of the team analysing the latest images from space 🔭
Read more 👉 tinyurl.com/bdze5xcy
#DUresearch #DUinspire @esa.int #Einstein
Our scientists are part of the team analysing the latest images from space 🔭
Read more 👉 tinyurl.com/bdze5xcy
#DUresearch #DUinspire @esa.int #Einstein
Reposted by Vatsal Sanjay
Confinement, Jamming, and Adhesion in Cancer Cells Dissociating from a Collectively Invading Strand, W. Wang, R. A. Law, E. P. Ipiña, K. Konstantopoulos, and B. A. Camley, PRX Life 3 (2025) 🎉
go.aps.org/41xXR4N
#Biophysics #Cancer #Jamming #CollectiveBehavior #Mechanobiology #SoftMatter #Metastasis
go.aps.org/41xXR4N
#Biophysics #Cancer #Jamming #CollectiveBehavior #Mechanobiology #SoftMatter #Metastasis
February 26, 2025 at 10:59 PM
Confinement, Jamming, and Adhesion in Cancer Cells Dissociating from a Collectively Invading Strand, W. Wang, R. A. Law, E. P. Ipiña, K. Konstantopoulos, and B. A. Camley, PRX Life 3 (2025) 🎉
go.aps.org/41xXR4N
#Biophysics #Cancer #Jamming #CollectiveBehavior #Mechanobiology #SoftMatter #Metastasis
go.aps.org/41xXR4N
#Biophysics #Cancer #Jamming #CollectiveBehavior #Mechanobiology #SoftMatter #Metastasis
Reposted by Vatsal Sanjay
It was fun to uncover this story—bridging microbial physiology, biological pattern formation, & active matter physics. The results may even have implications for controlling microbes in applications. We'd love your feedback. Please report/share with whoever might be interested! [8/8]
February 27, 2025 at 5:28 PM
It was fun to uncover this story—bridging microbial physiology, biological pattern formation, & active matter physics. The results may even have implications for controlling microbes in applications. We'd love your feedback. Please report/share with whoever might be interested! [8/8]
Reposted by Vatsal Sanjay
Many biological fluids are polymer solutions, whose viscoelasticity can enhance cell swimming and promote large-scale mixing.
We showed that the core-shell organization also arises in polymer solutions, but with fascinating additional flow fluctuations. [7/8]
We showed that the core-shell organization also arises in polymer solutions, but with fascinating additional flow fluctuations. [7/8]
February 27, 2025 at 5:28 PM
Many biological fluids are polymer solutions, whose viscoelasticity can enhance cell swimming and promote large-scale mixing.
We showed that the core-shell organization also arises in polymer solutions, but with fascinating additional flow fluctuations. [7/8]
We showed that the core-shell organization also arises in polymer solutions, but with fascinating additional flow fluctuations. [7/8]
Reposted by Vatsal Sanjay
We then developed a biophysical model describing this interplay quantitatively. The model recapitulates the experiments, and also yields criteria for predicting the different ways in which confined bacterial populations self-organize under different conditions. [6/8]
February 27, 2025 at 5:28 PM
We then developed a biophysical model describing this interplay quantitatively. The model recapitulates the experiments, and also yields criteria for predicting the different ways in which confined bacterial populations self-organize under different conditions. [6/8]
Reposted by Vatsal Sanjay
Cells consume O2, creating a gradient that alters motility: (i) They move up the gradient toward the droplet boundary via aerotaxis, & (ii) They stop swimming in the anoxic droplet core and accumulate. These motility variations in turn reshape O2 fluxes. A feedback loop! [5/8]
February 27, 2025 at 5:28 PM
Cells consume O2, creating a gradient that alters motility: (i) They move up the gradient toward the droplet boundary via aerotaxis, & (ii) They stop swimming in the anoxic droplet core and accumulate. These motility variations in turn reshape O2 fluxes. A feedback loop! [5/8]
Reposted by Vatsal Sanjay
By simultaneously measuring cell distributions, oxygen concentration, and swimming-generated fluid flow, we figured out that this spatial organization is driven by the interplay between cell metabolism-generated oxygen gradients and collective motility. [4/8]
February 27, 2025 at 5:28 PM
By simultaneously measuring cell distributions, oxygen concentration, and swimming-generated fluid flow, we figured out that this spatial organization is driven by the interplay between cell metabolism-generated oxygen gradients and collective motility. [4/8]
Reposted by Vatsal Sanjay
Surprisingly, when the droplets are big and concentrated, the cells self-organize into a concentrated inner "core" of immotile cells surrounded by a more dilute outer "shell" of highly motile cells. (See movie in 1st tweet.) In some cases, the core shrinks and disappears. [3/8]
February 27, 2025 at 5:28 PM
Surprisingly, when the droplets are big and concentrated, the cells self-organize into a concentrated inner "core" of immotile cells surrounded by a more dilute outer "shell" of highly motile cells. (See movie in 1st tweet.) In some cases, the core shrinks and disappears. [3/8]
Reposted by Vatsal Sanjay
Bacteria often inhabit confined spaces, such as biological tissues/gels & soils/sediments, where metabolites are scarce. What influence does confinement have on a population of motile bacteria?
We addressed this question by studying quasi 2D droplets of swimming E. coli. [2/8]
We addressed this question by studying quasi 2D droplets of swimming E. coli. [2/8]
February 27, 2025 at 5:28 PM
Bacteria often inhabit confined spaces, such as biological tissues/gels & soils/sediments, where metabolites are scarce. What influence does confinement have on a population of motile bacteria?
We addressed this question by studying quasi 2D droplets of swimming E. coli. [2/8]
We addressed this question by studying quasi 2D droplets of swimming E. coli. [2/8]
Reposted by Vatsal Sanjay
Excited to release our latest work:
doi.org/10.1101/2025...
Here, we describe how confined bacterial suspensions self-organize into structured domains of different motilities, in response to oxygen limitations🦠🍥
Bluetorial follows! [1/8]
doi.org/10.1101/2025...
Here, we describe how confined bacterial suspensions self-organize into structured domains of different motilities, in response to oxygen limitations🦠🍥
Bluetorial follows! [1/8]
February 27, 2025 at 5:28 PM
Excited to release our latest work:
doi.org/10.1101/2025...
Here, we describe how confined bacterial suspensions self-organize into structured domains of different motilities, in response to oxygen limitations🦠🍥
Bluetorial follows! [1/8]
doi.org/10.1101/2025...
Here, we describe how confined bacterial suspensions self-organize into structured domains of different motilities, in response to oxygen limitations🦠🍥
Bluetorial follows! [1/8]
Reposted by Vatsal Sanjay
Science advances our economic, physical, and social and cultural wellbeing, and is key to a sustainable future. However, we live in times of great change, and the values that have driven science for the benefit of humanity are under threat. Read our statement here: royalsociety.org/news/2025/02...
Science under threat | Royal Society
The Royal Society will use its voice and the expertise of our Fellows to resist the various challenges to science.
royalsociety.org
February 25, 2025 at 2:11 PM
Science advances our economic, physical, and social and cultural wellbeing, and is key to a sustainable future. However, we live in times of great change, and the values that have driven science for the benefit of humanity are under threat. Read our statement here: royalsociety.org/news/2025/02...
To get an executive summary, have a look at our blog post: blogs.comphy-lab.org/Blog/2025-JF... and/or an `AI` generated general summary at bit.ly/4ifVrxg
February 24, 2025 at 9:55 PM
To get an executive summary, have a look at our blog post: blogs.comphy-lab.org/Blog/2025-JF... and/or an `AI` generated general summary at bit.ly/4ifVrxg