|TUD Organische Chemie||Immel||Publications||Covers||Abstract 03||View or Print (this frame only)|
The cover picture displays the molecular geometries of VH-type amylose (upper structure) and A-amylose (lower entry) with their solvent-accessible molecular surfaces superimposed. VH-amylose (top) represents a left-handed single helix with six glucose residues per turn, elaborating a central channel along the molecular axis which is accessible to small molecules for the formation of inclusion complexes. In contrast, the two individual strands of the double-helical A-form (bottom, blue and red coloring of the molecular models) are tightly interwoven with each other leaving no additional space. The surfaces are shown for the center sections of the molecular models only to exclude end-effects for the polymers. For details, see: The Hydrophobic Topographies of Amylose and its Blue Iodine Complex. S. Immel and F. W. Lichtenthaler, Starch/Stärke 2000, 52, 1-8.