♀️Today is the International Day of Women & Girls in Science. Women remain underrepresented in STEM and leadership, facing persistent barriers. We all have a role to play in challenging bias so girls & women can fulfil their potential and contribute to the benefit of society.

How do phototactic microorganisms navigate structured light fields? 🦠🔬 We show that their motion depends on both the light gradient and a memory of illumination. By exploiting this, we can guide and confine microalgae using tailored light patterns. @comedialkb.bsky.social arxiv.org/pdf/2601.07741

Our work on hydrodynamic instabilities in active jets is on the cover of PRL this week! journals.aps.org/prl/abstract... A dialogue between experiment and theory, where we use light to control active suspensions and show how they can be destabilized by their self-generated flows

Pure Hydrodynamic Instabilities in Active Jets of Puller Microalgae

Using phototaxis to control cell orientation, various instabilities can be induced in jets of motile microalgae.

journals.aps.org

🎧 Conseil podcast du weekend Je conseille vivement les replays de cet excellent colloque du Collège de France qui explore la relation entre #genre et #sciences. Bonne écoute ! 🖱Disponible sur l'application Radio France, et sur www.college-de-france.fr/fr/agenda/gr...

Happy to share that our work on active phase separation by photophobic microalgae is now published in PRL! journals.aps.org/prl/abstract... When surrounded by multiple light sources, cells hide behind each other, leading to the quick formation of a macroscopic branching pattern.

#CNRSnews 📰 Energy transition is a myth, based on the misconception that energy sources were replaced by “cleaner” alternatives over the past 200 years. Carbon emissions have actually increased, hence the need for better informed strategies to fight global warming news.cnrs.fr/articles/the...

The myth of energy transition

The concept of an “energy transition” is misleading, states the CNRS science historian Jean-Baptiste Fressoz. He explains why coal and oil never replaced wood, and that the fight against climate chang...

news.cnrs.fr

Upcoming Symposium! Physics of Adaptation and Decision making in Biology! When: September 16 Where: Amsterdam, The Netherlands Join us here: www.fluidlab.nl/padm25 Speakers: Ray Goldstein, Sujit Datta, @thomasshimizu.bsky.social, @mirnakramar.bsky.social, @blarson.bsky.social, me

The call is now officially open, with a deadline at the end of July! ⏳ If you are interested in applying, don’t hesitate to contact me. 🔬🦠

Gianni Jacucci@giannijacca.bsky.social · last yr.

🦠🔬 PhD positions available 🔬🦠 If you’re curious about light–matter interactions and collective behaviour in living systems, check out the attachment for more details. 📝 The official call will be published soon, but informal expressions of interest are already welcome!

We are living the hottest June on record after infamous June 2003 🔥 At high elevation, consequences of lack of freezing are obvious: a lake has formed on the glacier at Punta Helbronner (~3300 m) Crazy... not the first time, but it's a sign of how hot it gets at high altitude! 📸 @skywaymontebianco

🦠🔬 PhD positions available 🔬🦠 If you’re curious about light–matter interactions and collective behaviour in living systems, check out the attachment for more details. 📝 The official call will be published soon, but informal expressions of interest are already welcome!

The school of physics was founded in 1951 by Cécile DeWitt-Morette, a French physicist then postdoc in the US. This picture of the Mer de Glace, which is displayed in the school, was taken two years before; since then it has lost ~2,5km in length and 200m in thickness.

Les Houches! Thanks to the organizers and all the participants for a great week of Soft matter & Biophysics in this stunning place

“...to care is an act not of weakness, but of strength.” The Lancet response: bit.ly/4jRb5Av

Interplay between high-energy quenching and state transitions in Chlamydomonas reinhardtii: a single-cell approach https://www.biorxiv.org/content/10.1101/2025.01.23.633867v1