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  • 1
    Electronic Resource
    Electronic Resource
    Conformational studies of poly(N5-Ω-hydroxyalkyl-L-glutamine)s in reversed micelles (1984)
    Springer
    Colloid & polymer science 262 (1984), S. 896-901 
    Details
    ISSN: 1435-1536
    Keywords: Reversed micelle ; poly(N5-Ω-hydroxyalkyl-L-glutamine)s ; circular dichroism measurement ; conformational transition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The molecular conformations of poly(N5-dihydroxyethylaminopropyl-L-glutamine) and poly(N5-dihydroxyethyl-L-glutamine) were investigated in reversed micelles of AOT as well as in aqueous solutions. Both poly(α-amino acid)s assume disordered structures in pure water. The conformation of poly(N5-dihydroxyethylaminopropyl-L-glutamine) transits intoα-helix in the reversed micelles as the molar ratio of water to AOT (w0=[H2O]/[AOT]) becomes smaller. A similar conformational transition was also observed in aqueous solutions when a certain amount of AOT was added. Under these conditions, however, poly(N5-dihydroxyethyl-L-glutamine) did not undergo a conformational transition intoα-helix.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01452221
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  • 2
    Electronic Resource
    Electronic Resource
    Conformational studies of the oligomers of L-lysine in reversed micelles (1985)
    Springer
    Colloid & polymer science 263 (1985), S. 923-927 
    Details
    ISSN: 1435-1536
    Keywords: Reversed micelle ; oligomer of L-lysine ; circular dichroism measurement ; conformational transition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The effect of the chain length on the conformation of oligo-L-lysines (Lys-n, n= 9, 12 and 15) was examined in the reversed micelles of bis(2-ethylhexyl)sodium sulfosuccinate (AOT) in octane by the circular dichroism (CD) measurements. These oligomers seem to take aβ-structure in these systems. The structure-inducing effect of the reversed micelles is enhanced as the molar ratio of water to AOT (w0=[H2O]/[AOT]) becomes smaller. On the other hand, in the aqueous solutions the oligomers having 12 and 15 residues show the conformational transition from random coil toα-helical structure by the addition of AOT, but the short oligomer of 9 residues does not show such a conformational transition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01469630
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    Paper (German National Licenses)
    Fulltext
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