Cis-Isomers of Photosensitive Cationic Azobenzene Surfactants in DNA Solutions at Different NaCl Concentrations: Experiment and Modeling

2021 ◽  
Author(s):  
Irina A. Silanteva ◽  
Andrei V. Komolkin ◽  
Veronika V. Mamontova ◽  
Pavel V. Gabrusenok ◽  
Pavel N. Vorontsov-Velyaminov ◽  
...  
Keyword(s):  
Dna Solutions

Molecular Transformations in DNA under the Influence of UV-radiation

2020 ◽  
Vol 04 ◽  
Author(s):  
Vigen G. Barkhudaryan ◽  
Gayane V. Ananyan ◽  
Nelli H. Karapetyan
Keyword(s):  
Uv Radiation ◽  
Uv Irradiation ◽  
Absorption Spectroscopy ◽  
Calf Thymus Dna ◽  
Dilute Solutions ◽  
Concentrated Solutions ◽  
Buffer Solution ◽  
Low Concentration ◽  
Calf Thymus ◽  
Dna Solutions

Background: The processes of destruction and crosslinking of macromolecules occur simultaneously under the influence of ultraviolet (UV) radiation in synthetic polymers, dry DNA and their concentrated solutions. Objective: The effect of UV radiation on calf thymus DNA in dilute solutions subjected to UV- irradiation was studied in this work. Method: The calf thymus DNA was studied in dilute solutions using viscometry, absorption spectroscopy and electrophoresis. Results: It was shown, that at a low concentration of DNA in the buffer solution ([DNA] = 85 μg / ml) under the influence of UV radiation, the processes of destruction of macromolecules and an increase in their flexibility predominate, which is accompanied by a gradual decrease in the viscosity of their solution. In addition, due to the low concentration of the solution, intramolecular crosslinking of macromolecules predominates, which also reduces their size and, consequently, the viscosity of the solution. Conclusion: It was concluded, that in dilute DNA solutions, due to the predominance of the processes of intramolecular crosslinking of macromolecules over intermolecular, only constant processes of decreasing the sizes of DNA macromolecules occur. As a result, its solubility remains virtually unchanged during UV irradiation. The described comments are also excellently confirmed by the results of absorption spectroscopy and electrophoresis

scholarly journals Dynamic Viscoelastic Measurement of E. coli Giant DNA Solutions

2007 ◽  
Vol 64 (7) ◽  
pp. 458-463
Author(s):  
Taro KINOSHITA ◽  
Shihori SOHYA ◽  
Yutaka KURODA ◽  
Yuichi MASUBUCHI
Keyword(s):  
E Coli ◽  
Dna Solutions

Surface tension and dilation rheology of DNA solutions in mixtures with azobenzene-containing cationic surfactant

2016 ◽  
Vol 505 ◽  
pp. 186-192 ◽  
Author(s):  
N. Moradi ◽  
Yuriy Zakrevskyy ◽  
A. Javadi ◽  
E.V. Aksenenko ◽  
V.B. Fainerman ◽  
...  
Keyword(s):  
Surface Tension ◽  
Cationic Surfactant ◽  
Dna Solutions

Buffered λ-DNA solutions at high shear rates

2021 ◽  
Vol 65 (2) ◽  
pp. 159-169
Author(s):  
H. Dakhil ◽  
S. K. Basu ◽  
S. Steiner ◽  
Y. Gerlach ◽  
A. Soller ◽  
...  
Keyword(s):  
High Shear ◽  
Shear Rates ◽  
High Shear Rates ◽  
Dna Solutions

scholarly journals Uniaxial extensional viscosity of semidilute DNA solutions

2019 ◽  
Vol 31 (4) ◽  
pp. 255-266
Author(s):  
Sharadwata Pan ◽  
Duc At Nguyen ◽  
P. Sunthar ◽  
T. Sridhar ◽  
J. Ravi Prakash
Keyword(s):  
Extensional Viscosity ◽  
Dna Solutions

Integral equation theory for the structure of DNA solutions

2002 ◽  
Vol 116 (12) ◽  
pp. 5308 ◽  
Author(s):  
Chwen-Yang Shew ◽  
Arun Yethiraj
Keyword(s):  
Integral Equation ◽  
Integral Equation Theory ◽  
Dna Solutions

Shear Banding or Not in Entangled DNA Solutions

2010 ◽  
Vol 43 (17) ◽  
pp. 6950-6952 ◽  
Author(s):  
Pouyan E. Boukany ◽  
Shi-Qing Wang
Keyword(s):  
Shear Banding ◽  
Dna Solutions

Tracer Diffusion of Proteins in DNA Solutions. 2. Green Fluorescent Protein in Crowded DNA Solutions

2000 ◽  
Vol 33 (16) ◽  
pp. 5932-5937 ◽  
Author(s):  
Nathan A. Busch ◽  
Thomas Kim ◽  
Victor A. Bloomfield
Keyword(s):  
Green Fluorescent Protein ◽  
Fluorescent Protein ◽  
Tracer Diffusion ◽  
Dna Solutions ◽  
Green Fluorescent
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