In developing an Application Specific Formulation, we generally rely on individuals considered “expert in the art” to ß-test potential formulations and guide us in the refinement of the final composition. These formulations are usually engineered from existing protocols and crude enzyme targets. Once a formulation has been identified and deemed acceptable by at least aRead more about Why don’t you offer a formulation for my specific application?[…]
Application-specific formulations are pre-blended mixtures of purified collagenase and protease in optimal ratios for isolation of cells from a particular tissue and/or species. Currently, our CIzyme™ Collagenase AS and CIzyme™ Collagenase RI are our only two application-specific formulations.
There are two components to inactivation of the digestive enzymes commonly used for tissue dissociation. To inactivate protease activity, a serum-containing media or buffer is most effective. Buffers or media containing human serum albumin (HSA) are ineffective in suppressing protease activity, even at very high concentrations of protein (>10%). However, serum-containing buffers do not inhibitRead more about What is the best way to inactivate the enzymes when a digestion is complete?[…]
VitaCyte’s technical service team has a significant amount of experience in transitioning from crude enzyme products to the more defined purified ones and is glad to provide you with assistance. If you can provide us details of the cell of interest; the enzyme product that is currently being used for the isolation; the concentrations (orRead more about How do I transition from a crude enzyme to a purified one?[…]