Congratulations!!! 🥳

Not a promise, tho, a fact! :D

We are working on it!

📄 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.

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