scholarly journals NMR Spectroscopy of Large Functional RNAs: From Sample Preparation to Low‐Gamma Detection

2020 ◽  
Vol 82 (1) ◽  
Author(s):  
Robbin Schnieders ◽  
Bozana Knezic ◽  
Heidi Zetzsche ◽  
Alexey Sudakov ◽  
Tobias Matzel ◽  
...  
Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 382
Author(s):  
Barbara Pacholczyk-Sienicka ◽  
Grzegorz Ciepielowski ◽  
Łukasz Albrecht

Spices and herbs are among the most commonly adulterated food types. This is because spices are widely used to process food. Spices not only enhance the flavor and taste of food, but they are also sources of numerous bioactive compounds that are significantly beneficial for health. The healing effects of spices are connected with their antimicrobial, anti-inflammatory and carminative properties. However, regular consumption of adulterated spices may cause fatal damage to our system because adulterants in most cases are unhealthy. For that reason, the appropriate analytical methods are necessary for quality assurance and to ensure the authenticity of spices. Spectroscopic methods are gaining interest as they are fast, require little or no sample preparation, and provide rich structural information. This review provides an overview of the application of NMR spectroscopy combined with chemometric analysis to determine the quality and adulteration of spices.


2015 ◽  
Vol 11 (2) ◽  
pp. 379-383 ◽  
Author(s):  
C. Airoldi ◽  
F. Tripodi ◽  
C. Guzzi ◽  
R. Nicastro ◽  
P. Coccetti

We present a rapid and reproducible protocol for intracellular metabolite extraction from yeast cells analyzed by1H-NMR spectroscopy.


2020 ◽  
Vol 22 (6) ◽  
pp. 3184-3190 ◽  
Author(s):  
Shinji Tanaka ◽  
Wei-Chih Liao ◽  
Atsuko Ogawa ◽  
Kazuhiko Sato ◽  
Christophe Copéret

A guideline for the preparation of DNP sample formulations from cross-linked organic polymers.


Metrologia ◽  
2017 ◽  
Vol 54 (2) ◽  
pp. 224-228 ◽  
Author(s):  
Taichi Yamazaki ◽  
Satoe Nakamura ◽  
Takeshi Saito

Author(s):  
R. E. Ferrell ◽  
G. G. Paulson ◽  
C. W. Walker

Selected area electron diffraction (SAD) has been used successfully to determine crystal structures, identify traces of minerals in rocks, and characterize the phases formed during thermal treatment of micron-sized particles. There is an increased interest in the method because it has the potential capability of identifying micron-sized pollutants in air and water samples. This paper is a short review of the theory behind SAD and a discussion of the sample preparation employed for the analysis of multiple component environmental samples.


Author(s):  
T. J. Magee ◽  
J. Peng ◽  
J. Bean

Cadmium telluride has become increasingly important in a number of technological applications, particularly in the area of laser-optical components and solid state devices, Microstructural characterizations of the material have in the past been somewhat limited because of the lack of suitable sample preparation and thinning techniques. Utilizing a modified jet thinning apparatus and a potassium dichromate-sulfuric acid thinning solution, a procedure has now been developed for obtaining thin contamination-free samples for TEM examination.


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