Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Tanaka, Hirokazu; Koizumi, Satoshi; Hashimoto, Takeji; Kurosaki, Kazuhiro*; Omae, Masashi*; Kobayashi, Shiro*
Physica B; Condensed Matter, 385-386(1), p.814 - 817, 2006/11
Times Cited Count：3 Percentile：17.95(Physics, Condensed Matter)We have investigated a self-assembling process of cellulose artificially synthesized via enzymatic polymerization by means of in-situ and time-resolved small-angle neutron scattering (SANS). The results elucidated the following: (1) cellulose molecules were synthesized at a special reaction site of the enzyme (cellulase) located on or near the smooth surface of the self-assembled enzymes formed in the reaction medium; (2) the synthesized molecules associated themselves via diffusion-limited aggregation (DLA) and crystallized into fibrils and (3) the fibrils formed the aggregates, which had the surface fractal dimension D
increasing from 2 to 2.3 with the reaction time, on the smooth surface of the enzyme aggregates.
Hashimoto, Takeji; Tanaka, Hirokazu; Koizumi, Satoshi; Kurosaki, Kazuhiro*; Omae, Masashi*; Kobayashi, Shiro*
Biomacromolecules, 7(9), p.2479 - 2482, 2006/09
Times Cited Count：13 Percentile：38.26(Biochemistry & Molecular Biology)no abstracts in English
Hashimoto, Takeji; Tanaka, Hirokazu; Koizumi, Satoshi; Kurosaki, Kazuhiro*; Omae, Masashi*; Kobayashi, Shiro*
no journal, ,
We have investigated self-assembling process of cellulose artificially synthesized via enzymatic polymerization by means of in-situ and time-resolved SANS (Small-angle Neutron Scattering). The results elucidated the followings: (1) Cellulose molecules synthesized at a special reaction site of the enzyme (cellulase) located on or near the smooth surface of self-assembled enzymes formed in the reaction medium; (2) The synthesized molecules associated themselves via DLA (diffusion-limited association) and crystallized into fibrils; (3) The fibrils formed the aggregates, which had surface fractal dimension Ds increasing from 2 to 2.3 with the reaction time, on the smooth surface of the enzyme aggregates.
Asano, Shusaku*; Maki, Taisuke*; Mae, Kazuhiro*; Sano, Yuichi; Kawanobe, Kazunori*; Sakamoto, Atsushi; Okamura, Nobuo; Watanabe, Masayuki; Suzuki, Hideya; Matsumura, Tatsuro
no journal, ,
Mass transfer coefficients in solvent extraction processes using new extractants developed for MA recovery were evaluated using microdevice. It could reduce the amount of solution drastically for evaluating mass transfer coefficients compared to existing evaluation methods using Nitsch cell etc.
Sano, Yuichi; Sakamoto, Atsushi; Takeuchi, Masayuki; Suzuki, Hideya*; Matsumura, Tatsuro; Kawanobe, Kazunori*; Asano, Shusaku*; Maki, Taisuke*; Mae, Kazuhiro*
no journal, ,
The mass transfer coefficients during the extraction and back-extraction of lanthanide elements in the solvent extraction process using new extractants (TDdDGA, HONTA) developed for minor actinides (MA) recovery were evaluated. In the TDdDGA system, it was confirmed that the mass transfer coefficients during back extraction were improved by the addition of alcohol to the solvent, etc., and in the HONTA system, the mass transfer coefficients were relatively small.
