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ARGEN Technical Notes

Kinetic Analysis of Protein Stability & Oligomeric State Transitions of Human Insulin

These experiments demonstrate the utility of ARGEN™ to define oligomeric states and transitions of Human Insulin under thermal stress. Time to dimerization and time to tetramerization measurements permitted the characterization of a stable dimer species, as well as insights into the mechanisms and kinetics of higher order oligomer formation. Whereas, SEC allows the characterization of...
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Characterizing the Thermal and Chemical Stability of a mAb

In these experiments, ARGEN was used to characterize the thermal and chemical stability of a monoclonal antibody and subsequently establish quantitative and qualitative properties such as pH and temperature dependence on aggregation kinetics. Additionally, SEC elution profiles were superimposed onto Mw/Mo output, providing a robust comparison and identification of the stability landscape for the mAb....
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Biopolymer Characterization & Polymer Degradation

Understanding the thermal, chemical and mechanical stability and physical properties of polymers is essential for development success. The case studies below outline the experimental methodologies and data analysis using ARGEN™ to monitor polymer degradation and to characterize molecular weight as well as the effects of temperature, shear stress and solution conditions on the stability of...
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Comparing Protein Stability

Biopharmaceutical companies isolate many types of proteins for use in experimental and therapeutic medicines. Unfortunately, when removed from their native environments, proteins become less stable. Unstable proteins are more prone to degradation from the primary stress mechanisms: mechanical and thermal (from manufacturing, storage and transport) and biological (from drug delivery). The challenge for biopharmaceutical companies...
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