DUO IEX Resins

 DUO IEX Resin is an unique strong ion-exchange chromatography media utilising dual functionalities. Individual beads are coated with an inert polymer out-layer giving a size-exclusion effect. Inside the bead are strong anion-exchange or strong cation-exchange ligands. This type of novel media is designed for the selective purification of proteins or other molecules based on both molecular weight and charge. It is particularly effective and efficient for flow-through purification of antibodies, large proteins, viruses and viral-like-particles etc.