scholarly journals Proteorhodopsin: Characterisation of 2D crystals by electron microscopy and solid state NMR

2007 ◽  
Vol 1768 (12) ◽  
pp. 3012-3019 ◽  
Author(s):  
Sarika Shastri ◽  
Janet Vonck ◽  
Nicole Pfleger ◽  
Winfried Haase ◽  
Werner Kuehlbrandt ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Solid State Nmr ◽  
2D Crystals

Pressure Induced Disorder in Kaolinite

Clay Minerals ◽  
1993 ◽  
Vol 28 (2) ◽  
pp. 311-319 ◽  
Author(s):  
A. La Iglesia
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Solid State Nmr ◽  
Gradual Increase ◽  
Grinding Process ◽  
Pressure Treatment ◽  
Process Pressure ◽  
Two Samples ◽  
Oh Content ◽  
Increased Pressure

AbstractChanges caused by pressures between 0 and 20 K bar on two samples of kaolinite have been studied. Increased pressure causes the samples to lose crystallinity, shown by a decrease in the Hinckley, Lietard and reference intensity ratio indices, as well as by the crystallite size measured from the 001 reflection. Results from DTA and solid state NMR show slight or no differences between the compressed and natural samples. Nonetheless, thermogravimetry reveals that the pressure treatment lowers the temperature at which dehydroxylation begins, but, unlike the grinding process, pressure does not alter the OH content of the samples. As a result of the increase in pressure, the IR spectra of the samples show a gradual increase in the intensity of the band at 1104 cm -1 with respect to 1112 cm -1. An increase in intensity can also be observed in the band at 936 cm ~ with respect to the band at 912 cm -1. Examination by electron microscopy reveals the existence of a large number of defects such as fractures, bends and deformations of the sheets, etc.; these are responsible for the decrease in crystallinity.

scholarly journals Late Stages of Phase Separation in a Binary Polymer Blend Studied by Rheology, Optical and Electron Microscopy, and Solid State NMR

1997 ◽  
Vol 30 (15) ◽  
pp. 4470-4480 ◽  
Author(s):  
Ioannis S. Polios ◽  
Maria Soliman ◽  
Chin Lee ◽  
Samuel P. Gido ◽  
Klaus Schmidt-Rohr ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Phase Separation ◽  
Solid State ◽  
Polymer Blend ◽  
Solid State Nmr ◽  
Optical And Electron Microscopy ◽  
Binary Polymer ◽  
Late Stages

Film formation of heterogeneous latex systems—a comparative study by mechanical testing, electron microscopy, interferometry and solid state NMR

1999 ◽  
Vol 1 (17) ◽  
pp. 3871-3878 ◽  
Author(s):  
Alexander DuChesne ◽  
Albena Bojkova ◽  
Jörg Rottstegge ◽  
Gunnar Glasser ◽  
Dieter Neher ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Comparative Study ◽  
Mechanical Testing ◽  
Solid State Nmr ◽  
Film Formation

scholarly journals A Hybrid Solid-State NMR and Electron Microscopy Structure-Determination Protocol for Engineering Advancedpara-Crystalline Optical Materials

2017 ◽  
Vol 23 (14) ◽  
pp. 3280-3284 ◽  
Author(s):  
Brijith Thomas ◽  
Jeroen Rombouts ◽  
Gert T. Oostergetel ◽  
Karthick B. S. S. Gupta ◽  
Francesco Buda ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Structure Determination ◽  
Solid State Nmr ◽  
Optical Materials
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