- Covalent Incorporation of Trehalose within Hydrogels for Enhanced Long-Term Functional Stability and Controlled Release of Biomacromolecules.
Covalent Incorporation of Trehalose within Hydrogels for Enhanced Long-Term Functional Stability and Controlled Release of Biomacromolecules.
Advanced healthcare materials (2015-06-20)
Timothy M O'Shea, Matthew J Webber, Alex A Aimetti, Robert Langer
PMID26088467
ABSTRACT
Hydrogels with covalently incorporated trehalose are synthesized using thiol-ene Michael addition. Trehalose hydrogels afford prolonged stabilization and -controlled release of model enzymes in vitro and in vivo as well as preservation of protein stability under heat and -lyophilization stressors. Strong and -ordered hydrogen bonding interactions within covalently incorporated trehalose hydrogels represent a possible mechanism for protein stabilization.
MATERIALS
Product Number
Brand
Product Description
Sigma-Aldrich
α-Chymotrypsin from bovine pancreas, (TLCK treated to inactivate residual tryspin activity), Type VII, essentially salt-free, lyophilized powder, ≥40 units/mg protein
Sigma-Aldrich
Aluminum oxide, nanoparticles, <50 nm particle size (DLS), 20 wt. % in isopropanol
Sigma-Aldrich
Dimethyl sulfoxide, Hybri-Max™, sterile-filtered, BioReagent, suitable for hybridoma, ≥99.7%
Sigma-Aldrich
Aluminum oxide, nanopowder, 13 nm primary particle size (TEM), 99.8% trace metals basis
Sigma-Aldrich
Calcium chloride, anhydrous, BioReagent, suitable for insect cell culture, suitable for plant cell culture, ≥96.0%