The 2025 YouGov survey data from more than 31,000 US adults show significant support for recreational cannabis legalization, medical use, and federal reclassification.
|Articles|September 25, 2019
Application Note: Recovery & Adsorption of Therapeutic Proteins
Author(s)Sartorius
We tested the novel filter device Claristep® for the preparation of protein samples containing one of four different target molecules: an anti-malaria vaccine candidate, aviscuminum, interferon alfa-2B, or monoclonal antibody (mAb) P2G12. In comparison to the standard protocols for sample preparation prior to analysis by either reversed-phase or SEC HPLC, the Claristep® filter did not exhibit a significant difference in protein concentration if the target molecules were present with at least 1.0 g L-1. A significantly reduced product concentration was observed in the Claristep® filtered samples compared to the standard protocol for mAb P2G12 if the concentrations were lower. The protein adsorption to the filter material was well described by a Langmuir adsorption isotherm. Additionally, the Claristep® filters facilitated a rapid sample preparation with minimal volume losses.
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