CIM PrimaT | New Multimodal Ligand for Separation of Empty and Full AAV9 Capsids

AAV9 clarified harvest from Sf9 cells was concentrated and purified using combination of tangential flow filtration, nuclease treatment and cation exchange capture. First part was TFF coupled with Kryptonase treatment. Capture step was performed on CIMmultus SO3 cation exchange column. AAV elution fraction was cleared of DNA and protein contaminants and prepared for final polishing – empty capsid removal. PrimaT separation mechanism is based on ligand multimodality, one of them being metal-chelating ability. This was successfully exploited for AAV capsid separation.

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