This document analyzes the use of functionalized magnetic nanoparticles (FMPs) to enhance oxygen transport in biopolymer production processes. FMPs consist of an iron oxide magnetic core and a coating that can provide additional properties like acting as oxygen carriers. Experiments show FMPs increase mass transfer by inducing microconvection, inhibiting bubble coalescence, and facilitating bubble breakup. For biopolymer fermentations, FMPs may decrease broth viscosity and increase oxygen uptake, allowing higher product concentrations and aeration/agitation rates. A chemical method is described to measure mass transfer rates using sodium sulfite oxidation reactions monitored with UV spectroscopy.