声明
Acknowledgments
Abstract
摘要
Table of contents
Chapter 1 Literature review
1.1 Introduction
1.2 Synthesis of polyphosphazenes
1.2.1 Thermal ring opening polymerization
1.2.2 Living cationic polymerization
1.3 Types of linkages in polyphosphazenes
1.3.1 Nitrogen linked groups
1.3.2 Oxygen linked substituents
1.3.3 Nitrogen and oxygen linked groups on same phosphorous atom
1.4 Different approaches for drug delivery
1.4.1 Polyphosphazene-drug conjugate
1.4.2 Polyphosphazene hydrogels
1.4.3 Polyphosphazene microspheres
1.4.4 Co-polymeric micelles of polyphosphazene
1.4.5 Polyphosphazene blends with other polymers
1.5 Polyphosphazenes towards clinical development
1.6 Research objectives
References
Chapter 2 Synthesis of polyphosphazene with methyl-4-hydroxy benzoate,4-hydroxy benzaldehyde and diethylamine side groups and preparation of fibers and films based on its blends with PVP for controlled delivery of anti-cancer drug
2.1 Introduction
2.2 Experimental
2.2.1 Materials and equipment
2.2.2 Synthesis of poly[(methyl-4-hydroxybenzoate)(4-hydroxy ben-zaldehyde)(diethylamino)phosphazene](PMHTP)
2.2.3 Blend preparation
2.2.4 Fabrication of fibers without and with drug
2.2.5 Preparation of drug loaded films
2.2.6 Hydrolytic degradation
2.2.7 In vitro drug release
2.3 Results and discussion
2.3.1 Synthesis and characterization of PMHTP
2.3.2 Blending of PMHTP and PVP
2.3.3 Thermal properties of PMHTP and P383-3
2.3.4 Hydrolytic degradation
2.3.5 Preparation of fibers
2.3.6 Preparation of drug loaded films
2.3.7 Drug release studies
2.4 Conclusion
References
Chapter 3 Synthesis of polyphosphazenes with acetamidophenol and glycine methyl ester side groups and prepa ration of microsphere from polyphosphazene blends with PMMA for drug combination therapy
3.1 Introduction
3.2 Experimental
3.2.1 Materials and equipments
3.2.2 Synthesis of polyphosphazenes
3.2.3 Preparation of microspheres from polyphosphazene blend with PMMA
3.2.4 Hydrolytic degradation studies
3.2.5 Loading of CPT in blend microspheres
3.2.6 Drug release studies
3.3 Results and discussions
3.3.1 Synthesis and characterization of polyphosphazenes
3.3.2 Preparation of mierospheres from blends of polyphosphazene and PMMA
3.3.3 Hydrolytic degradation of microspheres
3.3.4 Preparation of double drug loaded blend microspheres
3.3.5 Drug release studies of CPT and AMP
3.4 Conclusion
References
Chapter 4 Synthesis of polyphosphazenes with aminoazotoluene and methoxy polyethylene glycol side groups and preparation of UV and pH responsive nanostructures for drug delivery
4.1 Introduction
4.2 Materials and methods
4.2.1 Materials and equipment
4.2.2 Synthesis of polyphosphazenes
4.2.3 Hydrolytic degradation
4.2.4 UV-Visible response of SUM-401,SUM-402 and SUM-404
4.2.5 Preparation of different nanostructures
4.2.6 Drug release studies
4.3 Results and discussions
4.3.1 Synthesis of polyphosphazenes
4.3.2 Hydrolytic degradation studies
4.3.3 UV-Visible response of polyphosphazenes
4.3.4 Preparation of different nanostructures by self-assembly
4.3.5 Drug release studies
4.4 Conclusion
References
Chapter 5 Synthesis of polyphosphazenes with 4-hydroxybenzal-dehyde and glycine ethyl ester side groups and preparation of microspheres for the delivery of 5-Fluorou racil
5.1 Introduction
5.2 Materials and methods
5.2.1 Synthesis of polyphosphazenes
5.2.2 Preparation of microspheres
5.2.3 Drug release studies of 5-FU from microspheres
5.3.1 Synthesis of polyphosphazene
5.3.2 Preparation of microspheres
5.3.3 Drug release studies of microspheres
5.4 Conclusion
References
Chapter 6 Conclusion
5)List of abbreviation
Curriculum Vitae
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