Browsing by Author "Hind Hassan Abdalla Hashim, Rauzah Hashim"

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    Branched chain glycosides: Enhanced diversity for phase behavior of easily accessible synthetic glycolipids
    (Elsevier, 2006-11) Hind Hassan Abdalla Hashim, Rauzah Hashim; Nasrul Zamani Mohd. Rodzi, Rusnah Syahila Duali Hussen; Thorsten Heidelberg
    Glycolipids are natural liquid crystals, whose self-assembly is connected to membrane functionality. Because of natural compounds’ heterogeneity and due to problems of purifying lipids, synthetic glycolipids have become important media for understanding membranes. However, natural glycolipids require extensive syntheses and, therefore, are of limited accessibility. Technical products like alkyl polyglucosides (APGs), on the other hand, differ in structure and physical behavior from natural products. We here report our work on branched chain glycosides based on Guerbet alcohols. These compounds are readily accessible from common sources and exhibit a complex phase behavior, likely to be suitable for mimicking natural materials.
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    Thermotropic liquid crystal phase behaviour of synthetic branched chain alkylglycosides
    (National College, 2011-03) Hind Hassan Abdalla Hashim, Rauzah Hashim; Ahmad Sazali, Volkmar Vill; Matthias Wulf, Seiji Ujiie
    We have synthesized some of glycolipids which can be used as a model for studying the behavior of the cell membrane. We used monosaccharide and disaccharide sugars as the carbohydrate moieties while the lipid moieties derived from Guerbet alcohols. These alcohols are branched at position2. Liquid crystals studies on these synthetic glycolipids have been carried out using optical polarizing microscopy, differential scanning calorimetry and small angle X-ray scattering. Interesting phase behaviour has been observed for these branched chain glycolipids to compared to those of straight counterparts.