Author Archives: David Apiyo

Speeding Characterization of Biologics: Replace Traditional Assay Technologies with Label-Free Quantification and Kinetics

FortéBio’s Octet instruments are an ideal replacement for ELISA, HPLC, and SPR techniques in quantification of antibodies and recombinant proteins and in testing product potency for lot release. Bio-Layer Interferometry (BLI) technology monitors biomolecular interactions in real time to determine affinity, kinetics, and concentration. The plate-based, microfluidics-free format offers users several distinct advantages over other technologies. BLI-based systems can achieve higher throughput, with the flexibility to measure two to 96 samples simultaneously. Lower maintenance requirements and increased ease-of-use further shorten…

A Fast and High-Precision Influenza Vaccine Potency Assay

Fast and accurate determination of vaccine titer during manufacturing is important for understanding the performance of a development process and for scaling each process step. Although single radial immunodiffusion (SRID) has been the most commonly used technique for vaccine titer determination, it can be time-consuming and imprecise, requiring up to three days for results. The Pall ForteBio Octet® system offers a simple and direct method for measuring vaccine–antigen–antibody binding, capable of delivering high-precision analysis in as little as three hours.…