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  • 1
    Electronic Resource
    Electronic Resource
    The glucan-chitin complex in Saccharomyces cerevisiae (1981)
    Springer
    Archives of microbiology 130 (1981), S. 312-318 
    Details
    ISSN: 1432-072X
    Keywords: Saccharomyces cerevisiae ; Bud scar ; Scar ring ; Glucan ; Chitin ; Mannan ; Cytology ; Electron and X-ray diffractions ; Physico-chemical characterization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Scar rings (SR) from scarless cells at the early stages of budding and mature bud scars from Saccharomyces cerevisiae isolated by both chemical and enzymic treatment of cell walls were observed by selected-area electron diffraction (SAED), X-ray diffraction and electron microscopy with simultaneous physico-chemical characterization (including molar mass, intrinsic viscosity and crystallite size) of α-chitin and glucan. The SR, composed of glucan with strong 0.608; 0.397 and 0.293 nm X-ray reflections, was formed at the start of budding. The SAED patterns of α-chitin both in the adjacent circular zone and in the parts of newly formed primary septum (PS), observed when the development of the PS started, did not differ from those of α-chitin in the single mature bud scar. The bud scar consisted of α-chitin, glucan and mannan and their content, as well as the crystallite size of chitin, depended on the mode of preparation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00425946
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  • 2
    Electronic Resource
    Electronic Resource
    Light scattering study of solubilization of organic molecules by block copolymer micelles in aqueous media (1995)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 33 (1995), S. 1713-1722 
    Details
    ISSN: 0887-6266
    Keywords: block copolymers ; micelles ; solubilization ; light scattering ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Block copolymers, when dissolved in a selective solvent, form spherical micelles. These micelles can selectively solubilize organic molecules otherwise insoluble in the pure solvent. In this study, we report solubilization of organic molecules by styrene-methacrylic acid block copolymer micelles in aqueous buffers. A light scattering technique was developed to determine the extent of micellar solubilization. Our results indicate that the extent of micellar solubilization depends on the chemical nature of organic molecules, specifically, on the interactions between the organic compound and polystyrene. A thermodynamic model has been developed to describe micellar solubilization. The theoretical calculation agrees reasonably well with the experimental results for two micellar samples examined. ©1995 John Wiley & Sons, Inc.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1995.090331202
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