CIM SO3 Monolithic 96-Well Plate for Fast and Efficient rAAV Capture Step Screening After Kryptonase-Tff Pretreatment

Standard 96-well design offers a great advantage for screening many samples or conditions and supports process automatization. Our approach was multi-parallel screening of different mobile phases for rAAV capture step using CIM SO3 0.05 mL Monolithic 96-well Plates. Buffers of different pH, sodium chloride concentrations and use of Poloxamer 188 were screened to purify AAV2/9 clarified lysate obtained from Sf9 cells. Sample was pretreated by tangential flow filtration (TFF) coupled with nuclease treatment – Kryptonase. It was shown that the optimal conditions were buffers of pH 3.5, 500 mM NaCl, with addition of Poloxamer 188. Verification of results with selected buffer resulted in high capacity (1.44E14 capsids/mL SO3), great recovery (87.7 %) and excellent protein and DNA reduction (99.98 and 99.25 %).

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