152 citations · 380 across the 18 of their papers we have counts for
10 papers · 1 filter
Creases as elastocapillary gates for autonomous droplet control
Zixuan Wu, Gavin Linton, Stefan Karpitschka +1
Droplets are the core functional units in microfluidic technologies that aim to integrate computation and reaction on a single platform. Achieving directed transport and control of…
Marangoni swimmer pushing particle raft under 1D confinement
Abhradeep Maitra, Anupam Pandey, Sebastien Michelin +1
Active matter systems, due to their spontaneous self-propulsion ability, hold potential for future applications in healthcare and environmental sustainability. Marangoni swimmers,…
Reversal of Solvent Migration in Poroelastic Folds
Mees M. Flapper, Anupam Pandey, Stefan Karpitschka +1
Polymer networks and biological tissues are often swollen by a solvent, such that their properties emerge from a coupling between swelling and elastic stress. This poroelastic coup…
Pinning-induced folding-unfolding asymmetry in adhesive creases
Michiel A. J. van Limbeek, Martin H. Essink, Anupam Pandey +2
The compression of soft elastic matter and biological tissue can lead to creasing, an instability where a surface folds sharply into periodic self-contacts. Intriguingly, the unfol…
Elastic Rayleigh-Plateau instability: Dynamical selection of nonlinear states
Anupam Pandey, Minkush Kansal, Miguel A. Herrada +2
A slender thread of elastic hydrogel is susceptible to a surface instability that is reminiscent of the classical Rayleigh-Plateau instability of liquid jets. The final, highly non…
On the singular nature of the elastocapillary ridge
A. Pandey, B. Andreotti, S. Karpitschka +3
The functionality of soft interfaces is crucial to many applications in biology and surface science. Recent studies have used liquid drops to probe the surface mechanics of elastom…
Hydrogel menisci: Shape, interaction, and instability
Anupam Pandey, Charlotte L. Nawijn, Jacco H. Snoeijer
The interface of a soft hydrogel is easily deformed when it is in contact with particles, droplets or cells. Here we compute the intricate shapes of hydrogel menisci due to the ind…
Cusp-shaped Elastic Creases and Furrows
S. Karpitschka, J. Eggers, A. Pandey +1
The surfaces of growing biological tissues, swelling gels, and compressed rubbers do not remain smooth, but frequently exhibit highly localized inward folds. We reveal the morpholo…
Dynamical Theory of the Inverted Cheerios Effect
Anupam Pandey, Stefan Karpitschka, Luuk A. Lubbers +5
Recent experiments have shown that liquid drops on highly deformable substrates exhibit mutual interactions. This is similar to the Cheerios effect, the capillary interaction of so…
Dynamics of Snapping Beams and Jumping Poppers
Anupam Pandey, Derek E. Moulton, Dominic Vella +1
We consider the dynamic snapping instability of elastic beams and shells. Using the Kirchhoff rod and Föppl-von Kármán plate equations, we study the stability, deformation modes, a…