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Use of chitosan/polyamine biopolymers based cotton as a model system to prepare antimicrobial wound dressing  Moustafa M.G. Fouda, R. Wittke, D. Knittel,

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Presentation on theme: "Use of chitosan/polyamine biopolymers based cotton as a model system to prepare antimicrobial wound dressing  Moustafa M.G. Fouda, R. Wittke, D. Knittel,"— Presentation transcript:

1 Use of chitosan/polyamine biopolymers based cotton as a model system to prepare antimicrobial wound dressing  Moustafa M.G. Fouda, R. Wittke, D. Knittel, E. Schollmeyer  International Journal of Diabetes Mellitus  Volume 1, Issue 1, Pages (April 2009) DOI: /j.ijdm Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

2 Fig. 1 Structure of linear polyvinylamine, exemplarily with polyvinylformamide and chitosan. International Journal of Diabetes Mellitus 2009 1, 61-64DOI: ( /j.ijdm ) Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

3 Scheme 1 International Journal of Diabetes Mellitus 2009 1, 61-64DOI: ( /j.ijdm ) Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

4 Fig. 2 Structure of cationic and anionic polyelectrolyte.
International Journal of Diabetes Mellitus 2009 1, 61-64DOI: ( /j.ijdm ) Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

5 Fig. 3 Dropping test for identification of amino groups immobilized on modified cotton surface. International Journal of Diabetes Mellitus 2009 1, 61-64DOI: ( /j.ijdm ) Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

6 Scheme 2 Mechanism of crosslinking of cellulose, chitosan chains and/or polyvinylamine by butanetetracarboxylic acid: ROH; cellulose or chitosan chain, RNH2; PVAm or chitosan. International Journal of Diabetes Mellitus 2009 1, 61-64DOI: ( /j.ijdm ) Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

7 Scheme 3 Scheme of the reduction of TTC to formazane by living bacteria. International Journal of Diabetes Mellitus 2009 1, 61-64DOI: ( /j.ijdm ) Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

8 Fig. 4 Absorbance of formazane which is directly proportional to the amount of living bacteria (E. coli). International Journal of Diabetes Mellitus 2009 1, 61-64DOI: ( /j.ijdm ) Copyright © 2009 International Journal of Diabetes Mellitus Terms and Conditions

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