SoftBio Colloids Lab

The work of Willems et al., has been featured on the cover of

@softmatter.rsc.org

Congrats to everyone for the nice job!

Do not miss the article👇

🎨🔬 In our lab, science meets art! From vibrant colors to stunning shapes, our experiments are as beautiful as they are fascinating. Because science is art!

✨ Check out our gallery of images captured by the team:
www.softbiocoll.com

#SciArt #SoftMatter #Microscopy #SyntheticCells #ActiveMatter

Congratulations!!! 🥳

Not a promise, tho, a fact! :D

We are working on it!

Last weekend, we gathered to beat the heat with a lovely picnic, and to celebrate the recent tenure of our group leader @lauraal.bsky.social
Here’s to many more exciting years of science and friendship with you and those yet to join!
#softmatter @univbordeaux.bsky.social @crpp-bordeaux.bsky.social

Our group leader Laura's portrait is on the @cpjfrance.bsky.social website.

She holds a Chair Junior Maitre de Conference @univbordeaux.bsky.social @crpp-bordeaux.bsky.social
Discover more about her in the link below!👇

SoftBioColloids group portraits! 🗒️
We will be posting portraits of our group members, so you get to know a bit more about the people driving the science in the group.

We start with the portrait of Vivien Willems👇
More info softbiocoll.com

📄 Run-and-tumble dynamics of active giant vesicles
Vivien Willem, Daniel Matoz-Fernandez, Gianna Wolifsberg, Eric R. Dufresne, @baretjc.bsky.social
@lauraal.bsky.social
@crpp-bordeaux.bsky.social
@univbordeaux.bsky.social

🧵 Thanks for reading!
#SoftMatter #ActiveMatter #Biophysics

Why it’s exciting:

- First time showing tunable run-and-tumble behavior in synthetic, soft lipid vesicles systems

- Reorientation is membrane-driven

- Behavior is encoded in lipid composition and electric field

During "tumbles", the membrane reconfigures, disrupting the Janus asymmetry.
The vesicle stops, loses directionality, then resumes motion in a new direction after phase structure recovers.
This is driven by field-induced membrane fluidity and tension.

These giant unilamellar vesicles (GUVs) have coexisting liquid-ordered and disordered lipid domains.
Under AC fields, asymmetric EHD flows along the membrane generate propulsion—as long as the Janus structure is intact.

Publication Alert!🎉
🚀🧪 New paper out! @softmatter.rsc.org @rsc.org

We show that Janus lipid vesicles can self-propel under AC electric fields, exhibiting run-and-tumble dynamics—just like bacteria, but driven by membrane-phase behavior.
👉 Read here: pubs.rsc.org/en/content/art

The active softies of the group met some weeks ago to spend a nice evening together and enjoy some international delicacies!🧀🍷
What a blessing being surrounded by these amazing humans!
If you want to know more about us, check the news on our website :)

softbiocoll.com/general-5

Frequency acts as a selector:
🔻Low freq → dipolar-driven networks
🔺High freq → standing rods, disconnection
Voltage tunes “stickiness.” Electric fields as on-demand glue.
#Percolation #Electrokinetics

🧲🧪 Field-tunable networks of colloidal rods!
AC fields induce reversible 2D percolated networks at area fractions below theoretical thresholds—dipolar attraction beats excluded volume. #SoftMatter #Colloids #SelfAssembly

Publication Alert!📢
Check our new article by José in collab with C. Fernandez-Rico, L. Rodriguez-Arco M. Dijkstra R. Subert & M. Lopez.
We engineering reversible 2D rod percolated networks!
pubs.rsc.org/en/content/a...
#SoftMatter #Colloids
@crpp-bordeaux.bsky.social @univbordeaux.bsky.social

It was a pleasrue to have @asciortino.bsky.social with us last week at @crpp-bordeaux.bsky.social
Thanks for showing us the beauty of soft interface driven out-of-equilibrium :) - and the best explanation on nematic defects ever!

Thérapie cellulaire : ça coule de souche Les cellules souches utilisées en recherche sont soit directement issues de l’embryon soit induites à la pluripotence à partir de cellules adultes différenciées. Ces dernières offrent à la recherche une nouvelle voie d’exploration thérapeutique pour de nombreuses maladies. Comment les exploiter ?

📻 Les cellules souches offrent à la recherche une nouvelle voie d’exploration thérapeutique pour de nombreuses maladies. Comment les exploiter ? Le point dans @sciencecqfd.bsky.social @franceculture.fr avec notamment Pierre Nassoy du LP2N* et fondateur de Treefrog :
www.radiofrance.fr/f...

Postdoctoral Position (m/f/d) | Biological Physics For the independent research group “Theory of Biological Fluids” headed by Dr. David Zwicker we seek to fill a Postdoctoral Position (m/f/d) in Biological Physics.

We have an open postdoc position in our group! We seek motivated and fun people with a background in theoretical biological physics to work on projects revolving around pattern formation, cell biology, and particularly #condensates. Details: www.ds.mpg.de/4078435/job_...

#TheoBiophysicsPosition

Scientists have designed an “ingenious” side-view device that lets them observe the structural changes of 3D tumour spheroids more comprehensively.
https://elifesciences.org/articles/101886?utm_source=bluesky&utm_medium=social&utm_campaign=organic

International Day of Women & Girls in Science !

Here are the Women and Girls in Science working @crpp-bordeaux.bsky.social 😀

@univbordeaux.bsky.social
@cnrsaquitaine.bsky.social

Esta semana temos unha programación especial polo Día da Muller e a Nena na Ciencia. Estade atentas!

Friday 07 February 2025, 1:30pm, at ENS Physics Department, room L378 or zoom

Jérémie Palacci (ISTA).

Can synthetic active matter inspire biophysicsts?

www.phys.ens.fr/biophysics_s...

Don't miss this great opportunity in @giovannivolpe.bsky.social Lab! 👇

Always good to be back at @cecamevents.bsky.social in Lausanne! By the way, check out the new program at www.cecam.org/program

Excited to share the new preprint on reconfigurable colloidal molecules, led by S. Ketzetzi, in collab. with H. Löwen and L. Isa. Congrats to Vivien (first article from her Master’s) & @lauraal.bsky.social for their contribution, and to all for the great work!

arxiv.org/abs/2501.00672

We are thrilled to be part of the #SigSynCell European DN

We will focus on the fabrication and manipulation of giant lipid vesicles with diverse architectures for motility, reconfiguration and signalling.
@univbordeaux.bsky.social
More information in the link below👇
sigsyncell.crpp.cnrs.fr

Research | Soft Biocolloids Soft BioColloids research group website, based at the University of Bordeaux and the Centre de Recherche Paul Pascal (CNRS, France). We focus on the design and assembly of bioinspired materials to fab...

The SoftBio Colloids group has grown in the past months, and we want to share with you our science and curiosity!
Visit our website to learn more about us!
👇
softbiocoll.com

#CRPP_Bx
@univbordeaux.bsky.social eaux
@cnrs.bsky.social
@agencerecherche.bsky.social