We demonstrate a versatile multilaminar flow microfluidic device in which magnetic particles are used as mobile supports for performing two important applications, namely (i) a clinically relevant sandwich immunoassay, and (ii) polye-lectrolyte coating of templates towards the fabrication of microcapsules for drug delivery applications. Furthermore, we demonstrate the use of a different force, diamagnetic repulsion, for deflecting polystyrene particles through a reagent stream with a view to performing multilaminar flow studies on diamagnetic material such as polymer particles and cells
