Dextran, conformation structure

Three capture its ability to reveal qualitative structural information in a visual format. The applications discussed show how peak displacement of the tripledetector chromatograms reflects polymer polydispersity (dextran), how detector response can relate to aggregation (chitosan), and how peak area differences can indicate a change in polymer chemical composition (PS vs. PS-star). The M-H plots (dextran, brominated PS) give information about polymer conformational changes, structural differences, and branching distributions. ... 

The ability of uncharged open-coil dextran molecules to penetrate tissues without a change in conformation is the means whereby the structure and distri-... 

For DDMC of core-shell particles, when a low concentration of [E] and [S], the kinetic kl[E][S] may be small, because a Coulomb force between the phosphoric acid from nucleic acids and the diethyl-amino - ethyl (DEAE) group of DEAE-dextran should not be large enough to compare with hydrogen bond in its PIC structure and the hydrophobic force of the graft poly (MMA) for its conformation. That is why Km is much larger than [S], As Km [S ], we have... 

Partial to complete 3-0-octadecylated polysaccharides exhibited characteristic solution and solid properties based on hydrophilic-hydrophobic structures. These polymers are suggested to form micellar conformations in water and in chloroform polysaccharide-coated liposomes, polymeric membranes, and thermotropic liquid-crystalline mesophase, depending on the octadecyl content. Hydrolysis of 3-deoxygenat-ed, 3-0-methylated, and 3-0-octadecylated dextrans by an endo-acting dextrans is compared. The possibility of a combshaped branched polysaccharide toward cell-specific biomedical materials is discussed. 

---