Journal
JOURNAL OF MATERIALS CHEMISTRY B
Volume 1, Issue 27, Pages 3353-3358Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tb20558d
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Funding
- Romanian National Authority for Scientific Research
- CNCS - UEFISCDI grant [PN-II-ID-PCCE-2011-2-0028]
- European Social Fund - Cristofor I. Simionescu Postdoctoral Fellowship Programme [POSDRU/89/1.5/S/55216]
- Sectoral Operational Programme Human Resources Development
- [ANR 2010 BLAN 717 2]
- [PITN-GA-2011-289033]
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Vanillin-chitosan biodynamers have been prepared and structure-morphology correlations revealed the pathway of progressive incorporation of the aldehyde onto chitosan backbones. Such dynamic biopolymers or biodynamers, generated from reversibly interacting components, offer the possibility to address the dynamic covalent behaviour of the reversible imine-bond formation/hydrolysis equilibria between vanillin and chitosan polymeric backbones. The reaction takes place with very low conversion in acidic aqueous solutions (7-12%), but the imine bond formation is amazingly improved (similar to 80%) when the reaction takes place while solution-solid state transition and solid state phase-organization events occur. The chitosan-vanillin biopolymeric films described here present interesting Candida albicans antifungal activity compared with other common bacterial strands, which suggests the implementation of these biocompatible materials as thin layer protecting systems for medical devices.
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