Hydrogel dynamics in oscillating magnetic fields
Abstract
This study explores the dynamic response of a nanoparticle- filled hydrogel exposed to an oscillating magnetic field. The hydrogel, modeled as an Oldroyd-B viscoelastic fluid, contains superparamagnetic nanoparticles in both free and captured states. Time-dependent particle exchange induces multiperiodic behavior driven by both the magnetic field and the hydrogel’s elastic frequency. Numerical simulations reveal a bifurcation between elastic and viscous regimes, influenced by key dimensionless parameters. The results demonstrate the complex interplay between magnetic forces and viscoelasticity, offering potential strategies for manipulating hydrogel motion and enhancing biofilm disruption.
Primary Faculty Mentor Name
Jeffrey Marshall
Status
Graduate
Student College
College of Engineering and Mathematical Sciences
Program/Major
Mechanical Engineering
Primary Research Category
Engineering and Math Science
Hydrogel dynamics in oscillating magnetic fields
This study explores the dynamic response of a nanoparticle- filled hydrogel exposed to an oscillating magnetic field. The hydrogel, modeled as an Oldroyd-B viscoelastic fluid, contains superparamagnetic nanoparticles in both free and captured states. Time-dependent particle exchange induces multiperiodic behavior driven by both the magnetic field and the hydrogel’s elastic frequency. Numerical simulations reveal a bifurcation between elastic and viscous regimes, influenced by key dimensionless parameters. The results demonstrate the complex interplay between magnetic forces and viscoelasticity, offering potential strategies for manipulating hydrogel motion and enhancing biofilm disruption.
