Newsletter

search results

results of search on CRYSTALLOGRAPHY JOURNALS ONLINE

189 citations found for Sakurai,

Search for Sakurai, in the World Directory of Crystallographers

Select bibliographic records for downloading using the checkboxes or select all button

Results 1 to 20, sorted by name:


Download citation
Download citation


Download citation
Acta Cryst. (2017). A73, C1185
Download citation


Download citation
Acta Cryst. (2014). A70, C1580
Download citation

link to html
In drug delivery system (DDS) using polymer micelles as drug carrier, DDS properties are related to spatial distribution of drug compounds in the micelles [1]. Because the spatial distribution of drug compounds should strongly depend on interactions and solubility of drug compounds in the micelles, elucidation of the relation between chemical structures of drug compounds and their spatial distribution in the micelle is much important. Thus, in this study, we examine to elucidate the relation between chemical features and spatial distribution of drug compounds in polymer micelles by using anomalous small-angle X-ray scattering (ASAXS). To apply the ASAXS near bromine K-edge for analysis [2] of spatial distribution of drug compounds in polymer micelles, we employ 4 different bromine-labeled hydrophobic compounds as model drug compounds and polymer micelles composed of poly(dimethylaminoethyl methacrylate)-block-poly(methyl methacrylate) (PDMAEMA-b-PMMA). Figure shows SAXS and resonant term obtained from ASAXS near bromine K-edge for the polymer micelles containing 9-bromofluorene (BrF). The domain size estimated from the resonant term is much smaller than that of hydrophobic PMMA core of the micelle. Therefore, When BrF, which is highly hydrophobic and scarcely dissolved in hydrophobic PMMA, is incorporated in the polymer micelle, BrF forms small droplet in the hydrophobic core composed of PMMA. For the micelles incorporating bromobenzene, which as similar properties of BrF, similar result is obtained. On the other hand, 4-bromobenzyl alcohol and ethyl 2-bromoethyl propionate, which are miscible with PMMA, are homogeneously dispersed in the PMMA core of the micelles. These results indicate that highly hydrophobic compounds forms small droplet in hydrophobic core, and introduction of polarity to the compounds causes expansion of the area existing the hydrophobic compounds in polymer micelle.

Download citation
Download citation

link to html
Crystals of the multicopper oxidase CueO obtained from a perdeuterated sample for neutron diffraction diffracted to 1.8 Å resolution using X-rays and their crystal structure was solved.

Download citation
Download citation

link to html
It is shown how the misalignment of conical surface axes of single lenses in a compound refractive lens array can influence the focusing resolution.

Download citation
Download citation

link to html
A compound refractive nickel lens focusing 174 keV X-rays to 5 µm with a gain of 4 is presented.


Download citation
Download citation

link to html
High-resolution (0.12 a.u.) Compton profiles of hexagonal Zn have been measured on the SPring-8 BL08W beamline. Experimental results were compared with previous Korringa–Kohn–Rostoker and the new density functional theory theoretical band structure calculations.

Download citation
Download citation

link to html
The new efficient Monte Carlo procedure for multiple scattering simulation in Compton experiments is presented. The simulation algorithm has proved its advantage in restricted geometry experiments.

Download citation
Download citation


Download citation
Download citation

link to html
Results of the first world-wide round-robin experiment on X-ray reflectometry (XRR) are presented and discussed. The investigation aims to assess the reproducibility of XRR measurements and analysis, and to produce a `good practice' manual for this technique.

Download citation
Acta Cryst. (2002). A58, c23
Download citation


Download citation
J. Appl. Cryst. (2007). 40, s264-s268
Download citation

link to html
The small-angle X-ray scattering from dual-surfactant aqueous solutions made from sodium lauryl ether sulfate and coconut fatty acid amido propyl betaine was systematically measured as a function of the net sodium cation concentration and the surfactant concentration. The low-q behaviour of the form factor was consistent with long rigid cylinders while the middle- and high-q profiles fitted well with a core-shell cylinder model.


Download citation
Download citation


Download citation
Download citation



Download citation
Download citation

link to html
A new Cauchois-type high-resolution Compton spectrometer is described. The spectrometer is capable of measuring Compton profiles of heavy-element materials with a momentum resolution of 0.10 atomic units.


Download citation
Download citation


Follow IUCr Journals
Sign up for e-alerts
Follow IUCr on Twitter
Follow us on facebook
Sign up for RSS feeds