| Literature DB >> 27422087 |
Shyam B Mehta1, John F Carpenter1, Theodore W Randolph2.
Abstract
In this study, we investigated the effect of ionic strength (1.25-231 mM) on viscoelastic interfacial gels formed by a monoclonal antibody at silicone oil-water interfaces, and the formation of subvisible particles due to rupture of these gels. Rates of gel formation and their elastic moduli did not vary significantly with ionic strength. Likewise, during gel rupture no significant effects of ionic strength were observed on particle formation and aggregation as detected by microflow imaging, resonance mass measurement, and size exclusion chromatography. Subvisible particles formed by mechanical rupturing of the gels agglomerated over time, even during quiescent incubation, due to the colloidal instability of the particles.Entities:
Keywords: IgG antibody; colloid; gels; monoclonal antibody; protein formulation; proteins; rheology; salts/salt selection; stability
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Year: 2016 PMID: 27422087 DOI: 10.1016/j.xphs.2016.06.010
Source DB: PubMed Journal: J Pharm Sci ISSN: 0022-3549 Impact factor: 3.534