Ecofriendly Method to Dissolve Chitosan in Plain Water. ACS Biomater Sci Eng 2019 Dec 09;5(12):6355-6360
Date
12/09/2019Pubmed ID
33417810DOI
10.1021/acsbiomaterials.9b00695Scopus ID
2-s2.0-85075174563 (requires institutional sign-in at Scopus site) 25 CitationsAbstract
Chitosan is an important and abundant natural-based polymer, and it has broad applications. However, dissolving chitosan in plain water is a challenge, which mostly limits the biomedical applications of chitosan materials. Herein, we report an ecofriendly dissolution method to obtain a plain water-based chitosan solution for the first time. In this method, dissolving chitosan in ionic liquid followed by overnight freezing at -20 °C and subsequent solvent exchange with plain water at room temperature results in a stable chitosan dispersion in water with nanosize, namely water-based, chitosan pseudosolution. The overall process is ecofriendly. This new method augments the quality and processability of chitosan solutions used in manufacturing and bioprocessing and promotes the biomedical applications of chitosan-based products.
