Magnetophoresis and Microfluidics: A Great Union

Microfluidics is the field of engineering that deals with the working of fluidic devices employing flow passages narrower than 1 mm, which are aptly termed microchannels. Due to the small dimensions of the flow passages in these devices, the volume of the fluid in them is in the range of nanoliters and smaller [1]. Microfluidic devices offer several advantages, such as low reagent and sample requirements, portability, and small footprints [1], [2]. Additionally, microfluidic devices accommodate phenomena that cannot be practically employed at macroscales [3]. These advantages make microfluidic devices especially attractive for applications involving micro- and nanoscale entities [4], [5]. Examples of applications involving micro- and nanoscale entities include focusing, type- and size-based separating, and switching [4], [5].