scholarly journals Gas-Phase and Solution Conformations of the α-L-Iduronic Acid Structural Unit of Heparin.

ChemInform ◽  
2006 ◽  
Vol 37 (30) ◽  
Author(s):  
Milan Remko ◽  
Claus-Wilhelm von der Lieth
2003 ◽  
Vol 75 (6) ◽  
pp. 1325-1330 ◽  
Author(s):  
Dunmin Mao ◽  
Kodali Ravindra Babu ◽  
Yu-Luan Chen ◽  
D. J. Douglas

2010 ◽  
Vol 12 (14) ◽  
pp. 3474 ◽  
Author(s):  
Emilio B. Cagmat ◽  
Jan Szczepanski ◽  
Wright L. Pearson ◽  
David H. Powell ◽  
John R. Eyler ◽  
...  

PROTEOMICS ◽  
2015 ◽  
Vol 15 (16) ◽  
pp. 2872-2883 ◽  
Author(s):  
Rebecca Beveridge ◽  
Ashley S. Phillips ◽  
Laetitia Denbigh ◽  
Hassan M. Saleem ◽  
Cait E. MacPhee ◽  
...  

Author(s):  
Kenneth M. Richter ◽  
John A. Schilling

The structural unit of solid state collagen complexes has been reported by Porter and Vanamee via EM and by Cowan, North and Randall via x-ray diffraction to be an ellipsoidal unit of 210-270 A. length by 50-100 A. diameter. It subsequently was independently demonstrated by us in dog tendon, dermis, and induced complexes. Its detailed morphologic, dimensional and molecular weight (MW) aspects have now been determined. It is pear-shaped in long profile with m diameters of 57 and 108 A. and m length of 263 A. (Fig. 1, tendon, KMnO4 fixation, Na-tungstate; Fig. 2a, schematic of unit in long, C, and x-sectional profiles of its thin, xB, and bulbous, xA portions; Fig. 2b, tendon essentially unmodified by ether and 0.4 N NaOH treatment, Na-tungstate). The unit consists of a uniquely coild cable, c, of ṁ 22.9 A. diameter and length of 2580-3316 A. The cable consists of three 2nd-strands, s, each of m 10.6 A.


Author(s):  
Richard E. Hartman ◽  
Roberta S. Hartman ◽  
Peter L. Ramos

The action of water and the electron beam on organic specimens in the electron microscope results in the removal of oxidizable material (primarily hydrogen and carbon) by reactions similar to the water gas reaction .which has the form:The energy required to force the reaction to the right is supplied by the interaction of the electron beam with the specimen.The mass of water striking the specimen is given by:where u = gH2O/cm2 sec, PH2O = partial pressure of water in Torr, & T = absolute temperature of the gas phase. If it is assumed that mass is removed from the specimen by a reaction approximated by (1) and that the specimen is uniformly thinned by the reaction, then the thinning rate in A/ min iswhere x = thickness of the specimen in A, t = time in minutes, & E = efficiency (the fraction of the water striking the specimen which reacts with it).


Author(s):  
E. G. Rightor

Core edge spectroscopy methods are versatile tools for investigating a wide variety of materials. They can be used to probe the electronic states of materials in bulk solids, on surfaces, or in the gas phase. This family of methods involves promoting an inner shell (core) electron to an excited state and recording either the primary excitation or secondary decay of the excited state. The techniques are complimentary and have different strengths and limitations for studying challenging aspects of materials. The need to identify components in polymers or polymer blends at high spatial resolution has driven development, application, and integration of results from several of these methods.


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