Formation of the Newly Greenish Organized Molecular Film of Long-Chain Diynoic Acid Derivatives by Photopolymerization and Its Structural Study Using Near-Edge X-ray Absorption Fine Structure (NEXAFS) Spectroscopy

2004 ◽  
Vol 108 (35) ◽  
pp. 13153-13162 ◽  
Author(s):  
Atsuhiro Fujimori ◽  
Mikako Ishitsuka ◽  
Hiroo Nakahara ◽  
Eisuke Ito ◽  
Masahiko Hara ◽  
...  
1997 ◽  
Vol 3 (S2) ◽  
pp. 851-852
Author(s):  
H. Ade

Infrared, Raman, and fluorescence/luminescence microspectroscopy/microscopy in many instances seek to provide high sensitivity compositional and functional information that goes beyond mere elemental composition. This goal is shared by NEXAFS microscopy, in which Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy is employed to provide chemical sensitivity and can be relatively easily adopted in a scanning transmission x-ray microscope (STXM). In addition to compositional information, NEXAFS microscopy can exploit the dependence of x-ray absorption resonances on the bond orientation relative to the linearly polarized x rays (linear dichroism microscopy). For compositional analysis, NEXAFS microscopy is analogous to Electron Energy Loss Spectroscopy (EELS) in an electron microscope. However, when utilizing near edge spectral features, NEXAFS microscopy requires a considerable lower dose than EELS microscopy which makes it very suitable to studying radiation sensitive materials such as polymers. NEXAFS has shown to have excellent sensitivity to a wide range of moieties in polymers, including sensitivity to substitution isomerism.


1991 ◽  
Vol 43 (14) ◽  
pp. 11920-11925 ◽  
Author(s):  
Weiqing Zhou ◽  
M. A. Paesler ◽  
D. E. Sayers

2005 ◽  
Vol 7 (6) ◽  
pp. 1103 ◽  
Author(s):  
Tirandai Hemraj-Benny ◽  
Sarbajit BanerjeeCurrent address: Department ◽  
Sharadha Sambasivan ◽  
Daniel A. Fischer ◽  
Weiqiang Han ◽  
...  

2003 ◽  
Vol 42 (26) ◽  
pp. 8682-8689 ◽  
Author(s):  
Kaoru Okamoto ◽  
Jun Miyawaki ◽  
Kensuke Nagai ◽  
Daiju Matsumura ◽  
Akihiro Nojima ◽  
...  

2007 ◽  
Vol 601 (1) ◽  
pp. 95-103 ◽  
Author(s):  
J. Miyawaki ◽  
D. Matsumura ◽  
A. Nojima ◽  
T. Yokoyama ◽  
T. Ohta

1986 ◽  
Vol 236 (2) ◽  
pp. 585-589 ◽  
Author(s):  
I L Abrahams ◽  
I Bremner ◽  
G P Diakun ◽  
C D Garner ◽  
S S Hasnain ◽  
...  

Zn-metallothionein 1 from rabbit liver was investigated by means of Zn K-edge extended X-ray-absorption fine structure (e.x.a.f.s.). Also, the Cu and Zn K-edge e.x.a.f.s. were measured for two samples of mixed Cu Zn-metallothionein 2, with Cu/Zn ratios of 5:2 and 6:3, from pig liver. Detailed simulation of the Cu sites shows a primary co-ordination with three sulphur atoms, presumably from cysteine residues at 0.225 nm +/- 0.001 nm (2.25 +/- 0.01 A). The data for the Zn sites are best reproduced by four Zn-S separations at 0.233 +/- 0.001 nm (2.33 +/- 0.01 A). The Zn K-edge e.x.a.f.s. recorded for rabbit metallothionein 1 at 77 K shows, in addition to the primary co-ordination shell, evidence for two Zn-Zn separations at approx. 0.50 nm (5.0 A). This latter result provides the first information concerning the internal arrangement of zinc atoms in Zn7-metallothionein.


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