Beilstein J. Org. Chem.2012,8, 551–566, doi:10.3762/bjoc.8.63
monosaccharide derivatives. Nanostructuring of the highly substituted cyanoethylpolysaccharides was performed by dialysis against a non-solvent. In the presence of ferromagnetic iron-oxide nanoparticles, multicore cyanoethylglucan-coated ferromagneticnanoparticles were formed by selective entrapment. The
spectroscopy (PEELS).
Keywords: cyanoethyldextran; cyanoethylpullulan; ferromagneticnanoparticles; glycan nanostructures; substitution pattern; Introduction
Cyanoethylation has been widely applied to polysaccharides, e.g., to cellulose [1], inulin [2], and starch [3]. Onda reported on cyanoethylation of
ferromagneticnanoparticles was investigated.
Results and Discussion
Synthesis and characterization of cyanoethylglucans
Dextran (6 kDa) and pullulan (100 kDa) were reacted with different amounts of acrylonitrile (AN) and sodium hydroxide in water. According to the patent of Onda [4], acetone was applied as a
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Graphical Abstract
Figure 1:
Polysaccharide structures of pullulan and dextran cyanoethylation with acrylonitrile and NaOH as ca...
Beilstein J. Org. Chem.2010,6, No. 74, doi:10.3762/bjoc.6.74
degree of biaxiality.
Conclusion
We studied numerically structural characteristics of a diluted mixture of nematic liquid crystals and ferromagneticnanoparticles. The concentration x of NPs is low enough in order to avoid a phase separation process [29]. We consider cases where both LC molecules and NPs
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Graphical Abstract
Figure 1:
Nematic orientational correlation function G(r) for different values of x (x = 0.01 and 0.25), N = ...