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Yang, S., Fu, S., Li, X., Zhou, Y., and Zhan, H. (2010). "Preparation of salt-sensitive and antibacterial hydrogel based on quaternized cellulose," BioRes. 5(2), 1114-1125.


Cellulose hydrogels with quaternary ammonium (QA) groups were prepared via the etherification and cross-linking reaction. The structure of the functional hydrogels with QA groups was confirmed with FT-IR. Differential scanning calorimeter (DSC) analysis indicated that there was a large amount of free water in the hydrogels. The hydrogels showed salt-sensitivity behavior, and they also exhibited a strong antibacterial activity toward Escherichia coli.
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