New products and reaction pathways for the reaction of dimethylsulfoxide with peroxonitrite in aqueous solutions

2000 ◽  
Vol 36 (1) ◽  
pp. 42-47
Author(s):  
V. L. Lobachev ◽  
G. P. Zimtseva ◽  
E. S. Rudakov ◽  
Yu. V. Geletii
Keyword(s):  
Aqueous Solutions ◽  
New Products ◽  
Reaction Pathways

scholarly journals Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions

2016 ◽  
Vol 18 (2) ◽  
pp. 886-900 ◽  
Author(s):  
Federico A. O. Rasse-Suriani ◽  
M. Paula Denofrio ◽  
Juan G. Yañuk ◽  
M. Micaela Gonzalez ◽  
Ezequiel Wolcan ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Reaction Pathways ◽  
Photochemical Properties

In water, chloroharmines follow very distinctive thermal and photochemical pH- and O2-dependent-reaction pathways.

scholarly journals Microbial Transformation of Sesquiterpenoids

2009 ◽  
Vol 4 (8) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Haq N Bhatti ◽  
Muhammad Zubair ◽  
Nasir Rasool ◽  
Zahid Hassan ◽  
Viqar U Ahmad
Keyword(s):  
Natural Products ◽  
Biological Activity ◽  
New Products ◽  
Microbial Transformation ◽  
Value Added ◽  
Reaction Pathways ◽  
Agricultural Chemicals ◽  
Remote Sites ◽  
Pharmaceutical Industries ◽  
Value Added Products

Biotransformations are useful methods for producing medicinal and agricultural chemicals from both active and inactive natural products with the introduction of chemical functions into remote sites of the molecules. Research on microbial biotransformations of commonly available sesquiterpenoids into more valuable derivatives has always been of interest because of their economical potential to the perfume, food, chemical and pharmaceutical industries. Fungal transformations of sesquiterpenoids have been less frequently studied compared with many other natural products. In recent years, however, much attention has been given to the exploitation of new products with enhanced biological activity using microorganisms. This review, covering the period from 1990 to 2006, summarizes our knowledge of the biotransformations of sesquiterpenoids by various fungi. Such transformations could lead to the discovery of new reaction pathways that might be useful in the design of new value-added products.

Reaction Pathways for the Photodegradation of the Organophosphorus Cyanophos in Aqueous Solutions

2010 ◽  
Vol 86 (2) ◽  
pp. 247-254 ◽  
Author(s):  
Matthieu Menager ◽  
Jean François Pilichowski ◽  
Mohamed Sarakha
Keyword(s):  
Aqueous Solutions ◽  
Reaction Pathways

Ultrathin frozen sections of yeast without aldehyde prefixation

1978 ◽  
Vol 36 (2) ◽  
pp. 58-59
Author(s):  
K. J. Böhm ◽  
a. E. Unger
Keyword(s):  
Aqueous Solutions ◽  
Biological Material ◽  
Yeast Cells ◽  
Frozen Sections ◽  
Good Preservation ◽  
Ultrathin Frozen Sections

During the last years it was shown that also by means of cryo-ultra-microtomy a good preservation of substructural details of biological material was possible. However the specimen generally was prefixed in these cases with aldehydes.Preparing ultrathin frozen sections of chemically non-prefixed material commonly was linked up to considerable technical and manual expense and the results were not always satisfying. Furthermore, it seems to be impossible to carry out cytochemical investigations by means of treating sections of unfixed biological material with aqueous solutions.We therefore tried to overcome these difficulties by preparing yeast cells (S. cerevisiae) in the following manner:

Imaging polymers, proteins and dna in aqueous solutions with the atomic force microscope

1989 ◽  
Vol 47 ◽  
pp. 32-33
Author(s):  
S.A.C. Gould ◽  
B. Drake ◽  
C.B. Prater ◽  
A.L. Weisenhorn ◽  
S.M. Lindsay ◽  
...  
Keyword(s):  
Amino Acids ◽  
Dna Sequencing ◽  
Aqueous Solutions ◽  
Atomic Force Microscope ◽  
Piezoelectric Crystal ◽  
Atomic Force ◽  
Structure Of Molecules ◽  
Optical Lever

The atomic force microscope (AFM) is an instrument that can be used to image many samples of interest in biology and medicine. Images of polymerized amino acids, polyalanine and polyphenylalanine demonstrate the potential of the AFM for revealing the structure of molecules. Images of the protein fibrinogen which agree with TEM images demonstrate that the AFM can provide topographical data on larger molecules. Finally, images of DNA suggest the AFM may soon provide an easier and faster technique for DNA sequencing.The AFM consists of a microfabricated SiO2 triangular shaped cantilever with a diamond tip affixed at the elbow to act as a probe. The sample is mounted on a electronically driven piezoelectric crystal. It is then placed in contact with the tip and scanned. The topography of the surface causes minute deflections in the 100 μm long cantilever which are detected using an optical lever.

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