scholarly journals Thermodynamic Study on Amorphous Form and Crystalline Hydrates of Disodium Guanosine 5′‐Monophosphate by Raman Spectroscopy and FBRM

2021 ◽  
Author(s):  
Jungsuk Kim ◽  
Joachim Ulrich
Keyword(s):  
Raman Spectroscopy ◽  
Thermodynamic Study ◽  
Amorphous Form ◽  
Crystalline Hydrates

scholarly journals Methods of amorphization and investigation of the amorphous state

2013 ◽  
Vol 63 (3) ◽  
pp. 305-334 ◽  
Author(s):  
Tomaž Einfalt ◽  
Odon Planinšek ◽  
Klemen Hrovat
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Infrared Spectroscopy ◽  
Solid State ◽  
Terahertz Spectroscopy ◽  
Amorphous State ◽  
Amorphous Form ◽  
X Ray ◽  
State Amorphization ◽  
Crystalline Hydrates ◽  
And Calorimetry

Abstract The amorphous form of pharmaceutical materials represents the most energetic solid state of a material. It provides advantages in terms of dissolution rate and bioavailability. This review presents the methods of solid- -state amorphization described in literature (supercooling of liquids, milling, lyophilization, spray drying, dehydration of crystalline hydrates), with the emphasis on milling. Furthermore, we describe how amorphous state of pharmaceuticals differ depending on the method of preparation and how these differences can be screened by a variety of spectroscopic (X-ray powder diffraction, solid state nuclear magnetic resonance, atomic pairwise distribution, infrared spectroscopy, terahertz spectroscopy) and calorimetry methods.

Monitoring the Isothermal Dehydration of Crystalline Hydrates Using Low-Frequency Raman Spectroscopy

2021 ◽  
Author(s):  
Chima Robert ◽  
Sara J. Fraser-Miller ◽  
Ka̅rlis Be̅rziņš ◽  
Peter O. Okeyo ◽  
Jukka Rantanen ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Low Frequency ◽  
Crystalline Hydrates

Raman spectroscopy and X-ray diffraction of lithium niobate at temperatures up to 1300○-4.80pt○C

2005 ◽  
Vol 126 ◽  
pp. 101-105 ◽  
Author(s):  
B. Moulin ◽  
L. Hennet ◽  
D. Thiaudière ◽  
P. Melin ◽  
P. Simon
Keyword(s):  
Raman Spectroscopy ◽  
Lithium Niobate ◽  
X Ray Diffraction ◽  
X Ray

Raman spectroscopy using a gas laser

1965 ◽  
Vol 26 (11) ◽  
pp. 620-626 ◽  
Author(s):  
J.P. Russell
Keyword(s):  
Raman Spectroscopy ◽  
Gas Laser

OBSERVATION OF PRETRANSITIONAL EFFECTS ON THE SHAPE OF THE E2 (17 cm-1 ) OPTICAL MODE IN β-Ag1 BY RAMAN SPECTROSCOPY

1981 ◽  
Vol 42 (C6) ◽  
pp. C6-776-C6-778
Author(s):  
E. Cazzanelli ◽  
A. Fontana ◽  
G. Mariotto ◽  
F. Rocca ◽  
M. P. Fontana
Keyword(s):  
Raman Spectroscopy ◽  
Optical Mode

RAMAN SPECTROSCOPY IN GUIDED OPTICAL WAVES

1983 ◽  
Vol 44 (C10) ◽  
pp. C10-501-C10-503 ◽  
Author(s):  
J. D. Swalen ◽  
J. F. Rabolt
Keyword(s):  
Raman Spectroscopy ◽  
Optical Waves

A POWERFUL TOOL TO STUDY COLLISIONAL PHENOMENA AND FOR COMBUSTION APPLICATIONS : THE HIGH RESOLUTION STIMULATED RAMAN SPECTROSCOPY

1987 ◽  
Vol 48 (C7) ◽  
pp. C7-761-C7-762
Author(s):  
B. LAVOREL ◽  
G. MILLOT ◽  
R. SAINT-LOUP ◽  
M. L. GONZE ◽  
J. SANTOS ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Resolution ◽  
Stimulated Raman
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