Structural characterization of enzymatically synthesized glucan dendrimers.


Graduate school of Engineering, Osaka Electro-Communication University, 18-8, Hatsu-cho, Neyagawa, Osaka 572-8530, Japan. Electronic address: [Email]


Glucan dendrimers (GDs) were synthesized by using a branching enzyme. Spherical GDs of different molecular weights were obtained and had a narrow particle size distribution. Small-angle X-ray scattering (SAXS) measurements showed that the radius of gyration of the GDs was 4.2-14.6 nm in aqueous solution. The SAXS profiles of GDs with small molecular weights exhibited scattering behavior similar to that described by the hyperbranched polymer model, and tended to resemble that of a sphere as the molecular weight increased.


Glucan dendrimer,Glycogen,Small-angle X-ray scatterin,