Evaluating and forecasting movement patterns of magnetically driven microbeads in complex geometries.

ABSTRACT: The manipulation of superparamagnetic microbeads for lab-on-a-chip applications relies on the steering of microbeads across an altering stray field landscape on top of soft magnetic parent structures. Using ab initio principles, we show three-dimensional simulations forecasting the controlled movement of microbeads. Simulated aspects of microbead behaviour include the looping and lifting of microbeads around a magnetic circular structure, the flexible bead movement along symmetrically distributed triangular structures, and the dragging of magnetic beads across an array of exchange biased magnetic microstripes. The unidirectional motion of microbeads across a string of oval elements is predicted by simulations and validated experimentally. Each of the simulations matches the experimental re

SUBMITTER: Klingbeil F 

PROVIDER: S-EPMC7260204 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature