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Gellan gum is a candidate material for cartilage tissue engineering, but its application is limited by the high gelation (Coutinho et al., 2010) temperature and lack of mechanical strength. In this study, oxidized gellan gum was prepared and mixed with carboxymethyl chitosan to form a double-network complex hydrogel with significantly improved gelation temperature (T gelation ) and mechanical...
Chondroitin sulfate (CS) was chemoselectively oxidized by Tempo/NaClO to C-6 aldehyde of a d-galactosamine subunit (GalNAc). The subsequent, spontaneous desulfatation of oxidized CS gave rise to α,β-unsaturated aldehyde. A new derivative of CS was fully characterized and a degree of oxidation was determined by spectroscopic analysis. The optimization of reaction conditions showed a proportional degree...
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