Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Johnson, Thomas D."'
We present an asymptotic theory for solving the dynamics of slender autophoretic loops and knots. Our formulation is valid for non-intersecting 3D centrelines, with arbitrary chemical patterning and varying (circular) cross-sectional radius, allowing
Externí odkaz:
http://arxiv.org/abs/2310.10217
Publikováno v:
J. Fluid Mech. (2022), vol. 947, A11
Thermo-responsive hydrogels are a promising material for creating controllable actuators for use in micro-scale devices, since they expand and contract significantly (absorbing or expelling fluid) in response to relatively small temperature changes.
Externí odkaz:
http://arxiv.org/abs/2207.09954
Publikováno v:
Phys. Rev. Fluids, vol. 6, no. 6, p. 064101, Jun. 2021
The viscous drag on a slender rod by a wall is important to many biological and industrial systems. This drag critically depends on the separation between the rod and the wall and can be approximated asymptotically in specific regimes, namely far fro
Externí odkaz:
http://arxiv.org/abs/2106.13352
Publikováno v:
J. Fluid Mech. 898 (2020) A24
Artificial microswimmers, or "microbots" have the potential to revolutionise non-invasive medicine and microfluidics. Microbots that are powered by self-phoretic mechanisms, such as Janus particles, often harness a solute fuel in their environment. T
Externí odkaz:
http://arxiv.org/abs/2005.08624
The concept of internal anatomical asymmetry is familiar; usually in humans the heart is on the left and the liver is on the right, however how does the developing embryo know to produce this consistent laterality? Symmetry breaking initiates with le
Externí odkaz:
http://arxiv.org/abs/1910.03658
Autor:
Hall-McNair, Atticus L., Montenegro-Johnson, Thomas D., Gadelha, Hermes, Smith, David J., Gallagher, Meurig T.
Publikováno v:
Phys. Rev. Fluids 4, 113101 (2019)
The dynamics of geometrically non-linear flexible filaments play an important role in a host of biological processes, from flagella-driven cell transport to the polymeric structure of complex fluids. Such problems have historically been computational
Externí odkaz:
http://arxiv.org/abs/1903.03427
Publikováno v:
The ANZIAM Journal, (2018) 1-12
Microscale propulsion is integral to numerous biomedical systems, for example biofilm formation and human reproduction, where the surrounding fluids comprise suspensions of polymers. These polymers endow the fluid with non-Newtonian rheological prope
Externí odkaz:
http://arxiv.org/abs/1806.07599
Self-diffusiophoretic particles exploit local concentration gradients of a solute species in order to self-propel at the micron scale. While an isolated chemically- and geometrically-isotropic particle cannot swim, we show that it can achieve self-pr
Externí odkaz:
http://arxiv.org/abs/1806.03812
Publikováno v:
Phys. Rev. Fluids 3, 062201 (2018)
Artificial microswimmers are a new technology with promising microfluidics and biomedical applications, such as directed cargo transport, microscale assembly, and targeted drug delivery. A fundamental barrier to realising this potential is the abilit
Externí odkaz:
http://arxiv.org/abs/1801.09742
Propulsion through fluids is a key component in the life cycle of many microbes, be it in development, infection, or simply finding nutrients. In systems of biomedical relevance, this propulsion is often through polymer suspensions that endow the flu
Externí odkaz:
http://arxiv.org/abs/1708.09222