On Wednesday and Thursday, members of the Yue group will present our work on active glass transition in active-passive mixtures and tissue model with intercellular friction! #APSsummit26

Looking forward to hosting the awesome @haicenbiophy.bsky.social at this Friday's BPPB seminars for an exciting talk!! If you'd like to attend but don't have the zoom details, DM me.

Bad news, but maybe not! In complex systems that are mostly passive -- like soils with ants -- we can’t simply ignore those active components due to their small fraction! Even a small fraction of active particles can strongly influence the whole system’s behavior! 🐜 (4/4)

If the “active energy” per particle is fixed, more active particles naturally fluidize the system more. But the effect is highly non-linear: beyond a threshold of number fraction (~30% in our case), adding more active dopants barely helps. Great news: we can save energy and resources! ⚡(3/4)

When the total “active energy” input is fixed, steady shear rheology barely changes whether energy is injected uniformly or via a small fraction of active dopants. See how the data collapse over a broad range! Beyond some range, heterogeneity does play a role … stay tuned for our next paper 😊 (2/4)

It’s known that activity can act like an “effective temperature,” fluidizing glassy systems. But unlike temperature, activity can be tuned per particle. So, what happens if only a small fraction are active? How do these “active dopants” alter shear rheology and glass transition? (1/4)

Delighted to share our group’s new paper! Fantastic work by our talented postdoc Amir Shee and graduate student Ritwik Bandyopadhyay! journals.aps.org/prl/abstract...
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