Discrete one-dimensional crawlers on viscous substrates: achievable net displacements and their energy cost
Title | Discrete one-dimensional crawlers on viscous substrates: achievable net displacements and their energy cost |
Publication Type | Journal Article |
Year of Publication | 2014 |
Authors | Noselli G, Tatone A, DeSimone A |
Journal | Mechanics Research Communications |
Volume | 58 |
Pagination | 73–81 |
Keywords | cell migration, cell motility, crawling motility, limbless locomotion, motility on a solid substrate, self-propulsion, soft biomimetic robots |
Abstract | We study model one-dimensional crawlers, namely, model mechanical systems that can achieve self-propulsion by controlled shape changes of their body (extension or contraction of portions of the body), thanks to frictional interactions with a rigid substrate. We evaluate the achievable net displacement and the related energetic cost for self-propulsion by discrete crawlers (i.e., whose body is made of a discrete number of contractile or extensile segments) moving on substrates with either a Newtonian (linear) or a Bingham-type (stick-slip) rheology. Our analysis is aimed at constructing the basic building blocks towards an integrative, multi-scale description of crawling cell motility. |
DOI | 10.1016/j.mechrescom.2013.10.023 |
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