215 citations · 339 across the 7 of their papers we have counts for
7 papers
Flow-polarity decoupling and universal mobility enhancement in dense bacterial active fluids with mesoscale order
Yuhao Wang, Premkumar Leishangthem, Yiming Ding +2
Active fluids consisting of living cells or synthetic microswimmers display rich emergent behavior and nonequilibrium mechanical properties, which not only shed light on various bi…
Bacterial dimensions sensitively regulate surface diffusivity and residence time
Premkumar Leishangthem, Xuan Wang, Junan Chen +2
Run-and-tumble is a common but vital strategy that bacteria employ to explore environment suffused with boundaries, as well as to escape from entrapment. In this study we reveal ho…
An entropic effect essential for surface entrapment of bacteria
Premkumar Leishangthem, Xinliang Xu
The entrapment of bacteria near boundary surfaces is of biological and practical importance, yet the underlying physics is still not well understood. We demonstrate that it is cruc…
Molecular chaos in dense active systems
Lu Chen, Kyle J. Welch, Premkumar Leishangthem +7
The hypothesis of molecular chaos plays the central role in kinetic theory, which provides a closure leading to the Boltzmann equation for quantitative description of classic fluid…
The colloidal nature of complex fluids leads to enhanced motility of flagellated bacteria
Shashank Kamdar, Seunghwan Shin, Lorraine F. Francis +2
The natural habitats of microorganisms in the human microbiome and ocean and soil ecosystems are full of colloids and macromolecules, which impart non-Newtonian flow properties dra…
Hyperuniformity in cyclically driven glasses
Saheli Mitra, Giuseppe Foffi, Anshul D. S. Parmar +2
We present a numerical investigation of the density fluctuations in a model glass under cyclic shear deformation. At low amplitude of shear, below yielding, the system reaches a st…
The yielding transition in amorphous solids under oscillatory shear deformation
Premkumar Leishangthem, Anshul D. S. Parmar, Srikanth Sastry
Amorphous solids are ubiquitous among natural and man-made materials. Often used as structural materials for their attractive mechanical properties, their utility depends criticall…