title: Hydrodynamics of a microhunter: a chemotactic scenario.
abstract: Inspired by biological chemotaxis along circular paths, we propose a hydrodynamic molecular scale hunter that can swim and can find its target. The system is essentially a stochastic low-Reynolds-number swimmer with the ability to move in two-dimensional space and to sense the local value of the chemical concentration emitted by a target. We show that, by adjusting the geometrical and dynamical variables of the swimmer, we can always achieve a swimmer that can navigate and can search for the region with a higher concentration of a chemical emitted by a source.
authors.affiliation: Department of Physics, Zanjan University, Zanjan, Iran. najafi@znu.ac.ir
authors.forename: Ali
authors.initials: A
authors.lastname: Najafi
mesh_terms: D002633:Chemotaxis; D005407:Flagella / Q000502:physiology; D057446:Hydrodynamics; D008954:Models, Biological; D009068:Movement; D013550:Swimming