Gliding motion of bacterium in a non-Newtonian slime |
| |
| Affiliation: | 1. Department of Physics, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran;2. Institute for Metals Superplasticity Problems RAS, Khalturin 39, Ufa 450001, Russia;3. National Research Tomsk State University, Lenin St. 36, Tomsk 634036, Russia;4. Institute of Mathematics CC USC RAS, Chernyshevsky 112, Ufa 450008, Russia;5. Department of Mathematics and Statistics, University of Massachusetts, Amherst, MA 01003, USA;6. Bashkir State Pedagogical University, October Revolution St. 3a, Ufa 450000, Russia;7. University of Hradec Kralove, Rokitanskeho 62, Hradec Kralove 50003, Czech Republic;8. Department of Physics, University of Sistan and Baluchestan, Zahedan, Iran |
| |
| Abstract: | Gliding bacteria are a taxonomically heterogeneous group of rod-shaped prokaryotes that adhere to and translocate on certain substrata by mechanism(s) that are unknown. Organelles of motility, such as flagella, have not been observed on these bacteria. Furthermore, their rigidified cell walls preclude amoeboid type locomotion. The present investigation analyzes a motility model that involves an undulating cell surface which transmits stresses through a layer of exuded slime to the substratum. The non-Newtonian nature of the slime is taken into account by considering a specific fluid of the differential type, namely an incompressible homogenous fluid of grade three. The non-linear differential equation resulting from the balance of momentum and mass is solved analytically and numerically. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
