One‐ and two‐dimensional x‐ray detector systems at NSLS beam line X12B, for time‐resolved and static x‐ray‐diffraction studies

1995 ◽  
Vol 66 (2) ◽  
pp. 2295-2299 ◽  
Author(s):  
M. S. Capel ◽  
G. C. Smith ◽  
B. Yu
Keyword(s):  
Beam Line ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray

scholarly journals Two-Dimensional Time-Resolved X-ray Diffraction Study of Directional Solidification in Steels

2006 ◽  
Vol 47 (9) ◽  
pp. 2292-2298 ◽  
Author(s):  
Mitsuharu Yonemura ◽  
Takahiro Osuki ◽  
Hidenori Terasaki ◽  
Yuichi Komizo ◽  
Masugu Sato ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Directional Solidification ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray

Two-dimensional time-resolved x-ray diffraction study of dual phase rapid solidification in steels

2010 ◽  
Vol 107 (1) ◽  
pp. 013523 ◽  
Author(s):  
Mitsuharu Yonemura ◽  
Takahiro Osuki ◽  
Hidenori Terasaki ◽  
Yuichi Komizo ◽  
Masugu Sato ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Rapid Solidification ◽  
Dual Phase ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray

Two-dimensional time-resolved X-ray diffraction studies of live isometrically contracting frog sartorius muscle

1993 ◽  
Vol 14 (3) ◽  
pp. 311-324 ◽  
Author(s):  
J. Bordas ◽  
G. P. Diakun ◽  
F. G. Diaz ◽  
J. E. Harries ◽  
R. A. Lewis ◽  
...  
Keyword(s):  
Sartorius Muscle ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Frog Sartorius Muscle ◽  
Frog Sartorius

Tubulin structure at intermediate resolution

1995 ◽  
Vol 53 ◽  
pp. 852-853
Author(s):  
K. H. Downing ◽  
S. G. Wolf ◽  
E. Nogales
Keyword(s):  
High Resolution ◽  
Structural Data ◽  
Therapeutic Drug ◽  
Zinc Ions ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Negative Stain ◽  
Functional Mechanisms ◽  
Tubulin Structure

Microtubules are involved in a host of critical cell activities, many of which involve transport of organelles through the cell. Different sets of microtubules appear to form during the cell cycle for different functions. Knowledge of the structure of tubulin will be necessary in order to understand the various functional mechanisms of microtubule assemble, disassembly, and interaction with other molecules, but tubulin has so far resisted crystallization for x-ray diffraction studies. Fortuitously, in the presence of zinc ions, tubulin also forms two-dimensional, crystalline sheets that are ideally suited for study by electron microscopy. We have refined procedures for forming the sheets and preparing them for EM, and have been able to obtain high-resolution structural data that sheds light on the formation and stabilization of microtubules, and even the interaction with a therapeutic drug.Tubulin sheets had been extensively studied in negative stain, demonstrating that the same protofilament structure was formed in the sheets and microtubules. For high resolution studies, we have found that the sheets embedded in either glucose or tannin diffract to around 3 Å.

Synthesis and Structure of a Clathrated Two-Dimensional Metal-Organic Framework: [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2·H2O (L = Bis(1-pyrazinylethylidene)hydrazine)

2008 ◽  
Vol 73 (1) ◽  
pp. 24-31
Author(s):  
Dayu Wu ◽  
Genhua Wu ◽  
Wei Huang ◽  
Zhuqing Wang
Keyword(s):  
Metal Organic Framework ◽  
Channel Structure ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Guest Molecules ◽  
X Ray ◽  
Square Planar ◽  
Metal Organic ◽  
Aqueous Meoh ◽  
Organic Framework

The compound [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2 was obtained by the reaction of Cd(ClO4)2, bis(1-pyrazinylethylidene)hydrazine (L) and 4,4'-bipyridine in aqueous MeOH. Single-crystal X-ray diffraction has revealed its two-dimensional metal-organic framework. The 2-D layers superpose on each other, giving a channel structure. The square planar grids consist of two pairs of shared edges with Cd(II) ion and a 4,4'-bipyridine molecule each vertex and side, respectively. The square cavity has a dimension of 11.817 × 11.781 Å. Two guest molecules of bis(1-pyrazinylethylidene)hydrazine are clathrated in every hydrophobic host cavity, being further stabilized by π-π stacking and hydrogen bonding. The results suggest that the hydrazine molecules present in the network serve as structure-directing templates in the formation of crystal structures.

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