Enzyme-functionalised, core/shell magnetic nanoparticles for selective pH-triggered sucrose capture.

Diabetes is a chronic metabolic disease which leads to high glucose levels in the blood, with severe consequences for human health. Due to the worldwide appeal for the reduction in calorie intake, this study presents the development of a nanomaterial able to capture sucrose selectively, thus providing a tool to remove naturally occurring sucrose from food, such as fruit juices, producing low-calorie juices for consumption. Magnetite nanoparticles (FeO NPs) coated with an inert material (SiO) and functionalised with the enzyme invertase were designed to remove sucrose from solutions.