Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Dey, Ranabir"'
Biological microswimmers, like euglena, deform their body shape to swim through tight confinements having length scales comparable to the microswimmer length scale. Recently, it was shown that self-propelling active droplets can also squeeze through
Externí odkaz:
http://arxiv.org/abs/2407.04324
Ciliated microswimmers and flagellated bacteria alter their swimming trajectories to follow the direction of an applied electric field exhibiting electrotaxis. Both for matters of application and physical modelling, it is instructive to study such be
Externí odkaz:
http://arxiv.org/abs/2401.14376
Surfactant-laden thin liquid films overlaid on solid substrates are encountered in a variety of industrial and biological settings. As these films reach submicron thickness, they tend to become unstable owing to the influence of long-range dispersion
Externí odkaz:
http://arxiv.org/abs/2312.15299
We study the trajectories of a model microorganism inside three-dimensional channels with square and rectangular cross-sections. Using (i) numerical simulations based on lattice-Boltzmann method, and (ii) analytical expressions using far-field hydrod
Externí odkaz:
http://arxiv.org/abs/2311.05757
Publikováno v:
Nat Commun 13, 2952 (2022)
Biological microswimmers are known to navigate upstream of an external flow (positive rheotaxis) in trajectories ranging from linear, spiral to oscillatory. Such rheotaxis stems from the interplay between the motion and complex shapes of the microswi
Externí odkaz:
http://arxiv.org/abs/2106.10222
Patterning the wettability of solid surfaces is a successful strategy to control the dropwise condensation of vapor onto partially wetting solid surfaces. We followed the condensation of water vapor onto electrowetting-functionalized surfaces with st
Externí odkaz:
http://arxiv.org/abs/2007.13586
Autor:
Hokmabad, Babak Vajdi, Dey, Ranabir, Jalaal, Maziyar, Mohanty, Devaditya, Almukambetova, Madina, Baldwin, Kyle A, Lohse, Detlef, Maass, Corinna C
Publikováno v:
Phys. Rev. X 11, 011043 (2021)
To explore and react to their environment, living micro-swimmers have developed sophisticated strategies for locomotion - in particular, motility with multiple gaits. To understand the physical principles associated with such a behavioural variabilit
Externí odkaz:
http://arxiv.org/abs/2005.12721
Autor:
Wu, Hao, Dey, Ranabir, Siretanu, Igor, Ende, Dirk van den, Shui, Lingling, Zhou, Guofu, Mugele, Frieder
Charge trapping is a long-standing problem in electrowetting-on-dielectric (EWOD), causing reliability reduction and restricting its practical applications. Although this phenomenon has been investigated macroscopically, the microscopic investigation
Externí odkaz:
http://arxiv.org/abs/1909.09424
We study here the microscopic deformations of elastic lamellae constituting a superhydrophobic substrate under different wetting conditions of a sessile droplet using electrowetting. The deformation profiles of the lamellae are experimentally evaluat
Externí odkaz:
http://arxiv.org/abs/1908.05742
Publikováno v:
Soft Matter, 2019
Electrowetting is a commonly used tool to manipulate sessile drops on hydrophobic surfaces. By applying an external voltage over a liquid and a dielectric-coated surface, one achieves a reduction of the macroscopic contact angles for increasing volta
Externí odkaz:
http://arxiv.org/abs/1904.12662