Page 4 - TBT4135

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CONTENTS  
PART 1.
Preface  
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1.1. CARBOHYDRATE FUNDAMENTALS: MONOSACCHARIDES  
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1.1.1. The Fisher projection  
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1.1.2. D-­‐ and L-­‐sugars  
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1.1.3. Ring  formation  (alcohol + aldehyde = hemiacetal):
α
-­‐ and
β
-­‐forms and  the  
Haworth  formula  
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1.1.4. Definition of
α
 and
β
 (Haworth) –  the anomeric  carbon:  
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1.1.5. Fisher-­‐Haworth  interconversion  rules:  
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1.1.6. Example: Alginate  
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1.1.7. Epimers and anomers.  
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1.1.9. The  shape of hexoses  
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1.1.10. How  to determine whether a  sugar  is  
1
C
4
or  
4
C
1
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1.1.11. A  strategy  for determining  the  ring  form:  
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1.2. ALGINATES  
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1.2.1.  Introduction  
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1.2.2. General  
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1.2.3. Structure of alginates  
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1.2.4. Content and distribution of M and G  in alginates  
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1.2.5. Examples: Composition of  some algal alginates  
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1.2.6. Bacterial alginates:  
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1.2.7. Determination of  composition and  sequence  in alginates  
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1.2.8. NMR of alginates – a brief  course  for polysaccharide  chemists  
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1.2.9. The  
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H-­‐NMR  spectrum of D-­‐glucose  (in D
2
O):  
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1.2.10. Alginates: The  
1
H-­‐NMR  spectrum  
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1.2.11. Chain  length  (DP
n
)  from NMR  
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1.2.12. Studying alginate  structure and  epimerization by NMR  
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1.2.13. Epimerization: Macromolecular  consequences  
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1.2.14. Gelation with  calcium  ions: Cross-­‐linking of G-­‐blocks  
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1.2.15. Alginate, alginic acid: different  salt  forms  
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1.2.16. Size and  shape of alginate molecules  in  solution  
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1.2.17. Alginates: Properties and uses  
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1.2.18. Gelation with Ca
++
: Gel  strength and Young’s modulus  
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1.2.19. Cell  immobilization and  encapsulation  
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1.2.20. Homogeneous gels –  controlled  release of  calcium  ions  (in  situ gelation)  
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1.2.21. Alginate  foams: 3D  cell  cultures  
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1.3. Chitin and  chitosans  
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1.3.1. General  
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1.3.2. Chitin  
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1.3.3. From  chitin  to  chitosan: Chemical de-­‐N-­‐acetylation  
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1.3.4. Chain geometry  
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1.3.5. F
A
: The  fraction of A  (GlcNAc)  residues  
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1.3.6. Polyelectrolyte properties  
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1.3.7.  Interactions with polyanions  (polyelectrolyte  complexes)  
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1.3.8.
Solubility
 of  chitosans  
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1.3.9. Chitosans: Free amine  form and  salts  
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