Takeuchi Lab

Takeuchi Lab at Univ. Tokyo, Japan.
Our website:

[Takeuchi Lab @TakeuchiLabEN]

New preprint!
https://t.co/Pat9h2yS2R

This is a perspective article by Takeuchi and Nishiguchi, about various phases of active matter in bacterial populations. We briefly overview active gas, liquid, glass and nematic states seen in bacteria and give a few future perspectives.

[Takeuchi Lab @TakeuchiLabEN]

We believe our method is useful not only for proposing a new equation in theoretical physics, but also for data-driven approaches as a preprocessing step to narrow down candidate terms.

Achievement due to a brilliant idea and impressive theoretical creativity of Junya. Congrats!

[Takeuchi Lab @TakeuchiLabEN]

New preprint!
https://t.co/llG9HGPf6a

When writing down a governing equation as PDE, one needs to select terms satisfying given symmetries. This task, often done manually, is now formulated as a linear algebra problem, allowing us to generate a list of terms algorithmically!

[Takeuchi Lab @TakeuchiLabEN]

With the start of a new academic year, a new postdoc Vaibhav R. S. Parmar, and new students Yuhao Cao & Shusuke Takae joined us! Also a new intern Xuan Tu joined last month. Welcome!
https://t.co/fFJF9KNNUR

[Takeuchi Lab @TakeuchiLabEN]

We also showed that, through device design, we can change the distribution of produced colanic acid!

This is a great achievement by our former postdoc Fumi Yokoyama @Bunshu23. He carried it out in the lab as his main project, which he designed himself. Congratulations!!

[Takeuchi Lab @TakeuchiLabEN]

New preprint!
https://t.co/nT7QGlTKjk

Bacterial colonies are known to develop nematic order. We found that topological defects therein can even induce a genetic expression! It produces an important component of biofilm extracellular matrix, colanic acid.

[Takeuchi Lab @TakeuchiLabEN]

New KAKENHI project, "Dynamical Materials Science," involving nearly 30 PIs in Japan, will start soon! Takeuchi is the director and leads one of the scientific projects.
https://t.co/6foavwRGbi.

You can also follow English updates on Bluesky:
https://t.co/ZT3jTIidAd

[Takeuchi Lab @TakeuchiLabEN]

New preprint!
https://t.co/rguKjWoa6V

1D KPZ class has been studied extensively by exact solutions, but many of them were about typical fluctuations. Here we studied KPZ large deviations numerically, by a method called population dynamics algorithm. Congrats Yuta!

[Takeuchi Lab @TakeuchiLabEN]

New preprint!
https://t.co/KWIPRcyrnF

We realized topological transport in bacterial active matter, via microfabricated geometric structures. Besides edge localization and transport of bacteria, we also captured its topological origin thru modeling. Congrats Yoshi!

[Takeuchi Lab @TakeuchiLabEN]

There are people who go, but also people who come. Today a new student, Changle Liao, joined us and reboots the project he initiated during his internship. Also, a new intern from France, Félix, joined us 2 weeks ago. 2 new students from April also visited us. A lot of new wind!

[Takeuchi Lab @TakeuchiLabEN]

Our former postdoc, Yokoyama-san, has just joined OIST in Okinawa, Japan and started his independent group. Congrats again! We are proud of you, and the creativities of the members you appreciated in the post!

[Fumiaki Yokoyam 🇯🇵🇨🇭🇫🇷🇰🇷🇺🇸 @Bunshu23]

Flying to Okinawa. A huge thx u to my colleagues & their families/partners. I’ve learned so much in physics & also reflected deeply on biology. Considering my goal as a postdoc, my interdisciplinary journey has helped me shape my own science. I’ll be back & have a party together!

[Takeuchi Lab @TakeuchiLabEN]

Our postdoc Fumi Yokoyama won an independent position in OIST, Okinawa, Japan! Congratulations!! 🎊

[Fumiaki Yokoyam 🇯🇵🇨🇭���🇷🇰🇷🇺🇸 @Bunshu23]

I’m stoked to announce my next position, Buribushi Fellow (research-focused position), to start my own group as a PI at OIST in Okinawa, Japan from October.
https://t.co/CveCQ3HJ3N

[Takeuchi Lab @TakeuchiLabEN]

Today a new postdoc, Aiswarya, joined us as a postdoc from 🇮🇳. Welcome!!
https://t.co/fFJF9KNg5j

[Takeuchi Lab @TakeuchiLabEN]

A new academic year has started in Japan, with two newcomers in the lab: Dr. Go Takayama (postdoc) and Mr. Shogo Ito (Master’s course student). Welcome!

[Takeuchi Lab @TakeuchiLabEN]

& press released!
https://t.co/Mi1pJ8nDNO

[Takeuchi Lab @TakeuchiLabEN]

published in PNAS!
https://t.co/DBl3dKpuPL
& press release to come. Stay tuned!

[Takeuchi Lab @TakeuchiLabEN]

The 2nd preprint of today:
https://t.co/vzFLSEpYME
By large-scale experiments, numerics & analytic theory, we clarified how collective motion of dense bacterial suspensions transitions from a stable vortex under strong confinement to active turbulence as confinement is weakened.

[Takeuchi Lab @TakeuchiLabEN]

Published in Soft Matter!
https://t.co/VxbNhvmlGL

Fumi Yokoyama @Bunshu23 became a coauthor due to his significant contributions to the additional experiments.

[Takeuchi Lab @TakeuchiLabEN]

2 new preprints! The 1st one
https://t.co/JKwlitNJMh
is about the finding that starving bacteria form bundles akin to smectic liquid crystal. We quantified the smectic order by ML-based image analysis and discussed the relevance of extracellular substances & growth arrest.

[Takeuchi Lab @TakeuchiLabEN]

Published in PRL!
https://t.co/Zljklp3yoS

[Takeuchi Lab @TakeuchiLabEN]

Preprint major update!
https://t.co/8UrxwL3ToE

With Kazuaki Takasan who joined as a coauthor, we added simulations of the quantum Heisenberg model and confirmed the partial emergence of KPZ in integrable isotropic spin chains, in such a quantum model too!

[Takeuchi Lab @TakeuchiLabEN]

Takeuchi’s News & Views article published in Nature Physics.
“Spinning into new regimes”
https://t.co/KiCrry378c

It’s about an inspiring achievement of synthetic active matter exp’t at intermediate Re number, by Mike Shelley, William Irvine & co
https://t.co/riKPHtnu51
Congrats!

[Takeuchi Lab @TakeuchiLabEN]

Article featuring Samuel's work has just been published online in IOP Physics World!
"Squishy silicone rings shine a spotlight on fluid-solid transition"
https://t.co/ogfM4wXTQW
by @annademming

Many thanks to Anna, & also to Jonathan Barés & Christopher Chen for their comments!

[Takeuchi Lab @TakeuchiLabEN]

Published in PNAS
https://t.co/cBCk6xdtsW
& press released!
https://t.co/1v9zUlOrNF
“Researchers uncover what makes large numbers of “squishy” grains start flowing”