title: Communication: Cargo towing by artificial swimmers.
abstract: An active swimmer can tow a passive cargo by binding it to form a self-propelling dimer. The orientation of the cargo relative to the axis of the active dimer's head is determined by the hydrodynamic interactions associated with the propulsion mechanism of the latter. We show how the tower-cargo angular configuration greatly influences the dimer's diffusivity and, therefore, the efficiency of the active swimmer as a micro-towing motor.
authors.affiliation: Department of Chemistry, Presidency University, Kolkata 700073, India.
authors.forename: Debajyoti
authors.initials: D
authors.lastname: Debnath
authors.affiliation: Department of Chemistry, Presidency University, Kolkata 700073, India.
authors.forename: Pulak K
authors.initials: PK
authors.lastname: Ghosh
authors.affiliation: Center for Phononics and Thermal Energy Science, School of Physics Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China.
authors.forename: Yunyun
authors.initials: Y
authors.lastname: Li
authors.affiliation: Center for Phononics and Thermal Energy Science, School of Physics Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China.
authors.forename: Fabio
authors.initials: F
authors.lastname: Marchesoni
authors.affiliation: Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, USA.
authors.forename: Baowen
authors.initials: B
authors.lastname: Li
mesh_terms: D004058:Diffusion; D019281:Dimerization; D057446:Hydrodynamics; D008962:Models, Theoretical; D009038:Motion