In case you haven't seen it yet, we released a new app note last week regarding viscosity reduction in protein solutions. In this application note, Dr. Elliott discusses the idea that the viscosity of a protein solution depends on the nature of the individual and protein-protein interaction (PPI). Both of the individual characteristics, such as size and shape, as well as the pair interactions can be influenced by components in the buffer formulation. As a result, it is often desirable to reduce viscosity values so that formulations are suitable for a particular application or process (ie: injection).