Magnetic Microlassos for Reversible Cargo Capture, Transport, and Release.

ABSTRACT: Microbot propulsion has seen increasing interest in recent years as artificial methods that overcome the well-established reversible and challenging nature of microscale fluid mechanics. While controlled movement is an important feature of microbot action, many envisioned applications also involve cargo transport where microbots must be able to load and unload contents on command while tolerating complex solution chemistry. Here we introduce a physical method that uses flexible and linked superparamagnetic colloidal chains, which can form closed rings or "lassos" in the presence of a planar rotating magnetic field. By adding an additional AC magnetic field along the direction perpendicular to the substrate, we can orient the lasso at a tilted camber angle. We show that these magnetic lasso

SUBMITTER: Yang T 

PROVIDER: S-EPMC7931268 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature