3 years ago

Enhanced Stabilization in Dried Silk Fibroin Matrices

Enhanced Stabilization in Dried Silk Fibroin Matrices
Miaochan Zhi, David L. Kaplan, Jonathan A. Kluge, Adrian B. Li, Fiorenzo G. Omenetto, Marcus T. Cicerone
Preliminary studies have shown that silk fibroin can protect biomacromolecules from thermal degradation, but a deeper understanding of underlying mechanisms needed to fully leverage the stabilizing potential of this matrix has not been realized. In this study, we investigate stabilization of plasma C-reactive protein (CRP), a diagnostic indicator of infection or inflammation, to gain insight into stabilizing mechanisms of silk. We observed that the addition of antiplasticizing excipients that suppress β-relaxation amplitudes in silk matrices resulted in enhanced stability of plasma CRP. These observations are consistent with those made in sugar-glass-based protein-stabilizing matrices and suggest fundamental insight into mechanisms as well as practical strategies to employ with silk protein matrices for enhanced stabilization utility.

Publisher URL: http://dx.doi.org/10.1021/acs.biomac.7b00857

DOI: 10.1021/acs.biomac.7b00857

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