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Transport and Assembly of Magnetic Surface Rotors **
Author(s) -
Tierno Pietro,
Snezhko Alexey
Publication year - 2021
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.202100139
Subject(s) - dissipative system , magnetic field , nanotechnology , microfluidics , surface (topology) , rotating magnetic field , point (geometry) , mixing (physics) , materials science , physics , geometry , mathematics , quantum mechanics
This minireview focuses on recent advances with surface magnetic rotors, namely field‐responsive spherical or anisotropic microparticles that translate close to, or are embedded in a confining surface. The application of external magnetic modulations allows these microscopic wheels to be remotely spun and steered while also tuning their interactions and inducing assembly from a collection of disordered, moving units. With optical microscopy one can observe and characterize the complex collective phenomena that emerge in dissipative colloidal systems driven far from equilibrium by external fields. From a technological point of view, magnetic surface rotors envisage implementation into microfluidic devices, and can be used for drug delivery, mixing as well as a model system for biological active matter.