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  • TITLE
  • DEDICATION
  • DECLARATION
  • CERTIFICATE-1
  • CERTIFICATE-2
  • ACKNOWLEDGEMENT
  • PREFACE
  • SYMBOLS AND ABBREVIATIONS
  • CONTENTS
  • 1. CHITOSAN AND ITS DERIVATIVE POLYMERS-RECENT DEVELOPMENTS IN SYNTHESIS, CHARACTERIZATION AND APPLICATIONS
  • 1.1. Generality on Polymers
  • 1.2. Synthesis of polymers
  • 1.3. Classification of Polymers
  • 1.3.1. Synthetic Polymers
  • 1.3.2. Synthetic Polymers Relevant to Biomedical Applications
  • 1.3.3. Medical Applications of Synthetic Polymers
  • 1.3.4. Biodegradable Synthetic Polymers
  • 1.3. 5. Natural Polymers
  • 1.4. Chitin and Chitosan in Detail
  • 1.4.1. Source and Composition
  • 1.4.2. Production of Chitin
  • 1.4.3. Isolation of Chitin from Algae and Fungi
  • 1.4.4. Production of Chitosan
  • 1.4.5. Degree of Deacetylation (DD) and its Significance
  • 1.4.6. Properties
  • 1.4.7. Chitin Oligomers
  • 1.4.8. Water Soluble Chitin
  • 1.4.9. Chemical Modifications
  • 1.5. Applications of Chitin and Chitosan
  • 1.5.1. Medical Applications
  • 1.5.2. In Wastewater Treatment
  • 1.5.3. In Food Industry
  • 1.5.4. In Cosmetics
  • 1.5.5. In Agriculture
  • 1.5.6. Looking Forward
  • 1.6. Developments in Chemistry and Applications of Chitosan and Chitosan Derivatives
  • 1.7. Aim and Scope of the Present Study
  • 1.8. References
  • 2. MATERIALS AND METHODS
  • 2.1. Materials
  • 2.2. Determination of Viscosity and Molecular Weight of Chitosan
  • 2.3. Synthesis of Graft Copolymers of Chitosan and Vinyl Monomers
  • 2.4. Calculation of Grafting Parameters
  • 2.5. Preparation of Copolymer Films
  • 2.6. FTIR Spectral Analysis
  • 2.7. Thermal Analysis
  • 2.8. Mechanical Property Evaluation
  • 2.9. Swelling Properties
  • 2.10. Contact Angle Studies
  • 2.11. Wide Angle X-ray Diffraction (WAXD) Studies
  • 2.12. The Surface Morphology Studies
  • 2.13. Preliminary Biocompatibility Evaluation
  • 2.14. Biodegradation Studies
  • 2.15. Permeation Studies
  • 2.16. Preparation of Microspheres and Drug Release Studies
  • 2.17. References
  • 3. CHITOSAN-G-POLY (METHYL METHACRYLATE)
  • 3.1. Synthesis and Characterisation
  • 3.2. Chitosan-g-Poly (Methyl methacrylate) Microspheres for Controlled Release of Ampicillin
  • 3.3. Results and Discussion
  • 3.3.1. Preparation and Morphology Evaluation of the Microspheres
  • Fig 3.11a. SEM micrograph of the chitosan/ chitosan -g-PMMA film
  • Fig 3.11b. SEM micrograph of the chitosan/ chitosan -g-PMMA (CH-M7) microspheres
  • Fig 3.11c. Micro CT of the chitosan/ chitosan -g-PMMA (CH-M7) microspheres
  • Fig 3.12. Optical microscopic image of the CH/CH-M7 microspheres A) dry B) Swollen (after keeping at pH 1.98 overnight)
  • 3.3.2. Blood Compatibility of PMMA-g-Chitosan Microspheres
  • 3.3.3. The In Vitro Cytotoxicity Studies
  • 3.3.4. Biodegradability of the Microspheres
  • 3.3.5. Drug Incorporation into the Microspheres
  • 3.3.6. The In Vitro Release of Ampicillin
  • 3.3.7. Antibacterial Activity Studies
  • Fig 3.21. Minimum inhibitory concentration (MIC) method using tube dilution
  • Fig 3.22. Antibacterial activity of A) Chitosan and B) Chitosan/chitosan-g-PMMA microspheres against ATCC 25923 S aureus C) Chitosan and D) Chitosan/chitosan-g-PMMA microspheres against ATCC 25922 E coli
  • 3.4. Conclusions
  • 3.5. References
  • 4. CHITOSAN-G-POLY (2-HYDROXYETHYL METHACRYLATE)
  • 4.1. Synthesis and Characterisation
  • 4.1.1. Background
  • 4.1.2. Synthesis of Chitosan-g-poly (2-Hydroxyethyl methacrylate)
  • 4.1.3. FTIR Spectral Analysis
  • 4.1.4. Thermal Studies
  • 4.1.5. Mechanical Properties
  • 4.1.6. Hydrophilicity of Graft Copolymers
  • 4.1.7. X-ray Diffraction Patterns
  • 4.1.8. In Vitro Screening of Materials
  • 4.1.9. In Vitro Cytotoxicity Test
  • 4.1.10. Biodegradation Studies
  • 4.2. Chitosan-g- poly (HEMA) for Dialysis Membrane Applications
  • 4.2.1. Background
  • 4.2.2. Permeation Studies
  • 4.3. Conclusions
  • 4.4. References
  • 5. CHITOSAN-G-POLY (ETHYLENE GLYCOLMONOMETHACRYLATE)
  • 5.1. Synthesis and Characterisation
  • 5.1.1. Background
  • 5.1.2. Preparation of Chitosan-g-poly (ethylene glycol mono methacrylate)
  • 5.1.3. FTIR Spectral Analysis
  • 5.1.4. X-ray Diffraction Patterns
  • 5.1.5. Thermal Studies
  • 5.1.6. Mechanical Properties
  • 5.1.7. Swelling Studies
  • 5.1.8. Contact Angle Study
  • 5.1.9. Blood Compatibility of Chitosan-g-PEGm
  • 5.1.10. The In Vitro Cytotoxicity Studies
  • 5.1.11. Biodegradability of the Films
  • 5.2. Chitosan-g-polyethylene glycol monomethacrylate for DialysisMembrane Applications
  • 5.2.1. Permeation Studies
  • 5.3. Conclusions
  • 5.4. References
  • 6. CHITOSAN-G-POLY (VINYL ACETATE/VINYL ALCOHOL)
  • 6.1. Synthesis and Characterisation
  • 6.1.1. Background
  • 6.1.2. Preparation of Chitosan-g-poly (vinyl acetate) /poly (vinyl alcohol)
  • 6.1.3. FTIR Spectral Analysis
  • 6.1.4.X-ray Diffraction Patterns
  • 6.1.5. Thermal Studies
  • 6.1.6. Mechanical Properties
  • 6.1.7. Swelling Studies
  • 6.1.8. In Vitro Screening of Materials
  • 6.1.9. In Vitro Cytotoxicity Test
  • 6.1.10. Biodegradation Studies
  • 6.2. Chitosan-g-poly (vinyl acetate) for Dialysis Membrane Applications
  • 6.2.1. Background
  • 6.2.2. Creatinine Permeation
  • 6.2.3. Urea Permeation
  • 6.2.4. Glucose Permeation
  • 6.2.5. Albumin Permeation
  • 6.3. Permeation Properties of Chitosan-g-PVOH
  • 6.3.1. Background
  • 6.3.2. Creatinine Permeation
  • 6.3.3. Urea Permeation
  • 6.3.4. Glucose Permeation
  • 6.3.5. Albumin Permeation
  • 6.4. Conclusions
  • 6.5. References
  • 7. COMPARATIVE STUDY OF THE PROPERTIES AND APPLICATIONS OF CHITOSAN-G-POLYMERS
  • 7.1. Background
  • 7.2. Comparison of Physico-Chemical Properties
  • 7.3. Preliminary Biocompatibility Evaluation
  • Fig 7.4a. Live-dead assay with L929 mouse fibroblast cells on contact with chitosan (1-3), chitosan-g-poly (HEMA) (4-6), chitosan-g-PEGm (7-9), chitosan-g-PVAc (9-12) and chitosan-g-PVOH (13-15) with different magnifications (of the objective)
  • 7.4. Assessment of the Copolymers for Biomedical Applications
  • 7.4.1. Copolymers as Haemodialysis Membranes
  • 7.4.2. Chitosan-g-PMMA Microspheres for Controlled Release of Ampicillin
  • 7.5. Conclusions
  • 7.6. References
  • 8. SUMMARY AND CONCLUSIONS
  • 8.1. Summary
  • 8.2. Conclusions
  • 8.3. Scope for Future Study
  • 8.4. Publications in Refereed Journals
  • 8.5. Papers Presented in National and International Conferences
  • 8.6. Papers Communicated to International Journals