期刊
CARBOHYDRATE POLYMERS
卷 245, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.116501
关键词
Hyaluronic acid; Diisocyanate; Crosslinking; Biocompatibility; Immunomodulation
资金
- Irish Research Council [GOIPG/2015/3577]
- Irish Research Council (IRC) [GOIPG/2015/3577] Funding Source: Irish Research Council (IRC)
Here, we synthesise a new isocyanate-based crosslinker with the aim of obtaining novel tailored gels. The newly crosslinked hyaluronic acid (HA) gels were analysed in terms of rheological properties, chemical structure, swelling, biocompatibility and immunological response. Results show that the synthesised di-isocyanate out-performs other more conventional di-isocyanates due to its alkyl-based which has been shown to be slower to degrade by hydrolysis than aryl isocyanates. The alkyl-based isocyanate reacts readily with hydroxyl groups on the HA to form stable carbamate crosslinkages. Importantly and uniquely, a centrally located disulphide bond allows versatility with respect to reversible crosslinking and this allows potentially controlled layer-by-layer deposition of the HA for tailored pharmaceutical applications.
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