Radiolysis of pyrimidines in aqueous solutions. Part 3.—Micellar effects on product yields formed in the interaction of e–aq, ·H, ·OH and Cl–2 with thymine and uracil

1974 ◽  
Vol 70 (0) ◽  
pp. 1171 ◽  
Author(s):  
Janos H. Fendler ◽  
Gabriel A. Infante ◽  
Poonsri Jirathana ◽  
Eleanor J. Fendler
Keyword(s):  
Aqueous Solutions ◽  
Micellar Effects ◽  
Product Yields

Radical and molecular product yields in X-irradiated alkaline aqueous solutions

1967 ◽  
Vol 63 ◽  
pp. 932 ◽  
Author(s):  
C. E. Burchill ◽  
F. S. Dainton ◽  
D. Smithies
Keyword(s):  
Aqueous Solutions ◽  
Product Yields ◽  
Molecular Product

The sonolysis of methanol in diluted aqueous solutions: product yields

1995 ◽  
Vol 45 (2) ◽  
pp. 251-255 ◽  
Author(s):  
Dmitrii N. Rassokhin ◽  
Lenar T. Bugaenko ◽  
Georgii V. Kovalev
Keyword(s):  
Aqueous Solutions ◽  
Product Yields

Radiolysis of Aqueous Solutions with Pulsed Ion Beams. 4. Product Yields for Proton Beams in Solutions of Thiocyanate and Methyl Viologen/Formate

2001 ◽  
Vol 105 (20) ◽  
pp. 4902-4907 ◽  
Author(s):  
Norihisa Chitose ◽  
Yosuke Katsumura ◽  
Masafumi Domae ◽  
Zongli Cai ◽  
Yusa Muroya ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Methyl Viologen ◽  
Ion Beams ◽  
Proton Beams ◽  
Product Yields

Photolysis of Aqueous Solutions of 9,10-Anthraquinone-2-sulfonate. Part I. Dependence of Product Yields on Reaction Conditions

1972 ◽  
Vol 50 (3) ◽  
pp. 381-387 ◽  
Author(s):  
A. D. Broadbent ◽  
R. P. Newton
Keyword(s):  
Aqueous Solutions ◽  
High Oxygen ◽  
Low Oxygen ◽  
Reaction Conditions ◽  
Fenton's Reagent ◽  
Product Yields ◽  
Preferential Formation ◽  
Naoh Solution ◽  
Derivatives Of ◽  
Oxygen Concentrations

The products of the photolysis of neutral aqueous solutions of 9,10-anthraquinone-2-sulfonate or of the action of Fenton's reagent on this quinone have been identified as 1- and 2-hydroxy- and dihydroxy-9,10-anthraquinone sulfonates. High quinone and low oxygen concentrations favor production of monohydroxy-anthraquinone sulfonates, while low quinone and high oxygen concentrations result in preferential formation of dihydroxylated derivatives of the quinone. Photolysis in aqueous NaOH solution gives essentially only 2-hydroxy-9,10-anthraquinone sulfonates.

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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