Decoding the hydrodynamic properties of microscale helical propellers from Brownian fluctuations.

ABSTRACT: The complex motility of bacteria, ranging from single-swimmer behaviors such as chemotaxis to collective dynamics, including biofilm formation and active matter phenomena, is driven by their microscale propellers. Despite extensive study of swimming flagellated bacteria, the hydrodynamic properties of their helical-shaped propellers have never been directly measured. The primary challenges to directly studying microscale propellers are 1) their small size and fast, correlated motion, 2) the necessity of controlling fluid flow at the microscale, and 3) isolating the influence of a single propeller from a propeller bundle. To solve the outstanding problem of characterizing the hydrodynamic properties of these propellers, we adopt a dual statistical viewpoint that connects to the hydrodynamic

SUBMITTER: Djutanta F 

PROVIDER: S-EPMC10235983 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature