6 papers
Comment on "Faceting and Flattening of Emulsion Droplets: A Mechanical Model"
Pierre A. Haas, Raymond E. Goldstein, Diana Cholakova +2
García-Aguilar et al. [Phys. Rev. Lett 126, 038001 (2021)] have shown that the deformations of "shape-shifting droplets" are consistent with an elastic model, that, unlike previous…
Morphoelasticity of Large Bending Deformations of Cell Sheets during Development
Pierre A. Haas, Raymond E. Goldstein
Deformations of cell sheets during morphogenesis are driven by developmental processes such as cell division and cell shape changes. In morphoelastic shell theories of development,…
Subpopulations and Stability in Microbial Communities
Pierre A. Haas, Nuno M. Oliveira, Raymond E. Goldstein
In microbial communities, each species often has multiple, distinct phenotypes, but studies of ecological stability have largely ignored this subpopulation structure. Here, we show…
Shape-Shifting Polyhedral Droplets
Pierre A. Haas, Diana Cholakova, Nikolai Denkov +2
Cooled oil emulsion droplets in aqueous surfactant solution have been observed to flatten into a remarkable host of polygonal shapes with straight edges and sharp corners, but diff…
Embryonic Inversion in : The Flipping and Peeling of Elastic Lips
Pierre A. Haas, Raymond E. Goldstein
The embryos of the green alga are spherical sheets of cells that turn themselves inside out at the close of their development through a programme of cell shape cha…
Mechanics and Variability of Cell Sheet Folding in the Embryonic Inversion of
Pierre A. Haas, Stephanie S. M. H. Höhn, Aurelia R. Honerkamp-Smith +2
Many embryonic deformations during development are the global result of local cell shape changes and other local active cell sheet deformations. Morphogenesis does not only therefo…