X-Ray Microtomographic Imaging of Three-Dimensional Structure of Soft Tissues

2008 ◽  
Vol 14 (4) ◽  
pp. 359-363 ◽  
Author(s):  
Ryuta Mizutani ◽  
Akihisa Takeuchi ◽  
Kentaro Uesugi ◽  
Susumu Takekoshi ◽  
R. Yoshiyuki Osamura ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
X Ray ◽  
Three Dimensional Structure

The three-dimensional structure of interleukin-1β

1988 ◽  
Vol 16 (6) ◽  
pp. 949-953 ◽  
Author(s):  
JOHN P. PRIESTLE ◽  
HANS-PETER SCHÄR ◽  
MARKUS G. GRÜTTER
Keyword(s):  
Polypeptide Chain ◽  
Three Dimensional ◽  
Interleukin 1Β ◽  
Dimensional Structure ◽  
X Ray ◽  
Three Dimensional Structure ◽  
R Factor ◽  
The Core ◽  
Internal Sequence ◽  
Network Of Hydrogen Bonds

Summary The three-dimensional structure of human recombinant interleukin-1β has been determined at 0.24 nm resolution by X-ray crystallographic techniques. The partially refined model has a crystallographic R-factor of just under 19%. The structure is composed of 12 β-strands forming a complex network of hydrogen bonds. The core of the structure can best be described as a tetrahedron whose edges are each formed by two antiparallel β-strands. The interior of this structure is filled with hydrophobic side-chains. There is a 3-fold repeat in the folding of the polypeptide chain. Although this folding pattern suggests gene triplication, no significant internal sequence homology between topologically corresponding residues exists. The folding topology of interleukin-1β is very similar to that described by A. D. McLachlan [(1979) J. Mol. Biol. 133, 557–563] for soybean trypsin inhibitor.

scholarly journals Determination of the Three-dimensional Structure of Dislocations by Synchrotron White X-ray Topography Combined with a Topo-tomographic Technique

Materia Japan ◽  
2007 ◽  
Vol 46 (12) ◽  
pp. 823-823
Author(s):  
Seiji Kawado ◽  
Toshinori Taishi ◽  
Satoshi Iida ◽  
Yoshifumi Suzuki ◽  
Yoshinori Chikaura ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Dimensional Structure ◽  
X Ray ◽  
Three Dimensional Structure ◽  
Tomographic Technique

A three-dimensional structure of vanadium malonate: synthesis, characterization and X-ray structure of [Na2VO(C3H2O4)2(H2O)2]n

2004 ◽  
Vol 693 (1-3) ◽  
pp. 199-203 ◽  
Author(s):  
Quan-Zheng Zhang ◽  
Can-Zhong Lu ◽  
Wen-Bin Yang ◽  
Shu-Mei Chen ◽  
Ya-Qin Yu
Keyword(s):  
Three Dimensional ◽  
Dimensional Structure ◽  
X Ray ◽  
Three Dimensional Structure

Three-dimensional structure of the calcite–water interface by surface X-ray scattering

2004 ◽  
Vol 573 (2) ◽  
pp. 191-203 ◽  
Author(s):  
P. Geissbühler ◽  
P. Fenter ◽  
E. DiMasi ◽  
G. Srajer ◽  
L.B. Sorensen ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Dimensional Structure ◽  
Water Interface ◽  
X Ray ◽  
Three Dimensional Structure ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Quantitative Characterization of Bamboo Cortex’structure Based on X-ray Microtomography

2021 ◽  
Author(s):  
Xianke Wang ◽  
Lin Chen ◽  
Bin Huang ◽  
Jin Yuan ◽  
Lili Shang ◽  
...  
Keyword(s):  
Natural Fiber ◽  
Fiber Composite ◽  
Three Dimensional ◽  
Middle Layer ◽  
Dimensional Structure ◽  
Vascular Bundles ◽  
Layer Transition ◽  
Average Pore ◽  
X Ray ◽  
Three Dimensional Structure

Abstract Bamboo is a natural fiber composite with layered structure. Millions of years of evolution have endowed bamboo with the most effective structure in nature. The ingenious microstructure provides bamboo with excellent mechanical properties. Bamboo culm is composed of the cortex, a middle layer, and a pith ring. The cortex refers to the area starting from the periphery of the culm wall to the vascular bundles. The present study obtained the two-dimensional microstructure of bamboo cortex cells by optical microscopy and characterized the three-dimensional structure through high-resolution X-ray microtomography (µCT). Based on the analysis, the bamboo cortex cells were classified into four layers: epidermis layer, hypodermis layer, transitional layer, and parenchyma layer. The average pore volume of the bamboo cortex was about 1.54×10-6 mm3, the porosity was 36.1%, and the relative density was 0.639. The epidermis layer, hypodermis layer, transition layer, and parenchyma layer cells had a cell cavity volume of 917.81 µm3, 714.22 µm3, 1258.19 µm3, and 3117.65 µm3, respectively, an average length3d (L) of 19.38 µm, 25.84 µm, 26.46 µm, and 34.88 µm, respectively, an average breadth3d (W) of 14.11 µm, 9.44 µm, 15.22 µm, and 16.6 µm, respectively, and sphericity of 0.85, 0.76, 0.75, and 0.78, respectively. Studies on bamboo anatomical structure, especially three-dimensional digital characterization, will enrich the bamboo microstructure database. Besides, the three-dimensional structure of the bamboo cortex revealed in this study can provide a reference for optimizing composite material hierarchy and biomimetic design.

scholarly journals Eclipse mapping at X-ray wavelengths

1996 ◽  
Vol 176 ◽  
pp. 85-94 ◽  
Author(s):  
J.H.M.M. Schmitt
Keyword(s):  
Solar Corona ◽  
Binary Systems ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Similar Amount ◽  
Inversion Problem ◽  
X Ray ◽  
Three Dimensional Structure ◽  
Spatially Resolved ◽  
Rotational Modulation

Stellar coronae cannot be spatially resolved, and yet stellar coronae are likely to exhibit a similar amount of structure as the solar corona. Currently, the only way to infer structure from spatially unresolved data is to look for rotational modulation of the X-ray emission or eclipses in the case of binary systems. I will discuss some of the observations obtained and critically review the methods used to infer structure from these data. Particular emphasis will be placed on the ill-conditioned nature of the inversion problem, that makes it next to impossible to infer the possibly three-dimensional structure of stellar coronae.

scholarly journals Three-dimensional structure of monoanionic methionine-enkephalin: X-ray structure of tert -butyloxycarbonyl-Tyr-Gly-Gly-(4-bromo)Phe-Met-OH

FEBS Letters ◽  
1984 ◽  
Vol 170 (2) ◽  
pp. 229-231 ◽  
Author(s):  
Mitsunobu Doi ◽  
Toshimasa Ishida ◽  
Masatoshi Inoue ◽  
Takaji Fujiwara ◽  
Ken-ichi Tomita ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Dimensional Structure ◽  
Methionine Enkephalin ◽  
X Ray ◽  
Three Dimensional Structure

scholarly journals The Three-Dimensional Structure and X-Ray Sequence Reveal that Trichomaglin Is a Novel S-like Ribonuclease

Structure ◽  
2004 ◽  
Vol 12 (6) ◽  
pp. 1015-1025 ◽  
Author(s):  
Jian-Hua Gan ◽  
Lu Yu ◽  
Jian Wu ◽  
Hong Xu ◽  
Joyti S Choudhary ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Dimensional Structure ◽  
X Ray ◽  
Three Dimensional Structure

The X-ray three-dimensional structure of avidin

1999 ◽  
Vol 16 (1-4) ◽  
pp. 5-12 ◽  
Author(s):  
Camillo Rosano ◽  
Paolo Arosio ◽  
Martino Bolognesi
Keyword(s):  
Three Dimensional ◽  
Dimensional Structure ◽  
X Ray ◽  
Three Dimensional Structure
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