NDLI: Effect of chitosan penetration on physico-chemical and mechanical properties of bacterial cellulose

Content Provider	Springer Nature Link
Author	Ul Islam, Mazhar Shah, Nasrullah Ha, Jung Hwan Park, Joong Kon
Copyright Year	2011
Abstract	Bacterial cellulose-chitosan composites (BC-Ch) were prepared in order to obtain the BC-Ch composites with improved physico-mechanical characteristics. BC sheets were immersed in a Ch solution hoping that the Ch penetrates into the BC sheet. Ch penetration was observed according to variations in temperature, operation mode and treatment time. The morphological changes due to enhanced penetration were observed through FE-SEM, FT-IR and XRD analysis. FE-SEM analyses confirmed the formation of three dimensional multilayered structures in BC-Ch, whose thickness increased with Ch penetration. The FT-IR analysis showed intermolecular hydrogen bonding interaction between the BC and Ch molecules. XRD results revealed a slight decrease in the crystallinity index of the BC-Ch composites compared to pure BC. The mechanical properties, water holding capacity (WHC) and water release rate (WRR) of the BC-Ch composites were significantly improved compared to pure BC. The superior mechanical properties, WHC and water release rate would make the BC-Ch composites suitable for wound dressing and other biomedical applications.
Starting Page	1736
Ending Page	1743
Page Count	8
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	28
Issue Number	8
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2011-06-23
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bacterial Cellulose Chitosan Composites Physico-mechanical Properties Materials Science Industrial Chemistry/Chemical Engineering Biotechnology Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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