Comparison of particle image velocimetry and the underlying agents dynamics in collectively moving self propelled particles.

ABSTRACT: Collective migration of cells is a fundamental behavior in biology. For the quantitative understanding of collective cell migration, live-cell imaging techniques have been used using e.g., phase contrast or fluorescence images. Particle tracking velocimetry (PTV) is a common recipe to quantify cell motility with those image data. However, the precise tracking of cells is not always feasible. Particle image velocimetry (PIV) is an alternative to PTV, corresponding to Eulerian picture of fluid dynamics, which derives the average velocity vector of an aggregate of cells. However, the accuracy of PIV in capturing the underlying cell motility and what values of the parameters should be chosen is not necessarily well characterized, especially for cells that do not adhere to a viscous flow. Here,

SUBMITTER: Basak US 

PROVIDER: S-EPMC10397335 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature