Numerical Investigations on the Hydrodynamic Interaction between an E. Coli Minicell and a Micro Tweezers

The study of robotic micromanipulation is important for biomedical applications with live cells. Hydrodynamic trapping is arguably more favorable owing to the apparent lack of temperature gradients and tactile interaction. However, it offers challenges of modeling due to the complex nature of the physics governing the mechanics of trapping. This study aims to present a fully deterministic Multiphysics modeling of the hydrodynamic micro tweezers that actuated by external magnetic fields in a virtually infinite Newtonian fluid. Equation of motion is written to include all hydrodynamic interaction between the particles along with contact force. Early results dictate that it is possible to observe stable orbit for different cases although the interactions could rely on different physical phenomena in part.