Shear banding or not in entangled DNA solutions depending on the level of entanglement

2009 ◽  
Vol 53 (1) ◽  
pp. 73-83 ◽  
Author(s):  
Pouyan E. Boukany ◽  
Shi-Qing Wang
Keyword(s):  
Shear Banding ◽  
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

Role of Electrostatic Interactions in Shear Banding of Entangled DNA Solutions

2008 ◽  
Vol 41 (18) ◽  
pp. 6618-6620 ◽  
Author(s):  
Y. T. Hu ◽  
C. Palla ◽  
A. Lips
Keyword(s):  
Electrostatic Interactions ◽  
Shear Banding ◽  
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 Flow of wormlike micellar fluids around a sharp bend: Effects of branching and shear-banding

2018 ◽  
Vol 3 (9) ◽  
Author(s):  
Yiran Zhang ◽  
Hadi Mohammadigoushki ◽  
Margaret Y. Hwang ◽  
Susan J. Muller
Keyword(s):  
Shear Banding ◽  
Sharp Bend ◽  
Micellar Fluids

scholarly journals Rheology of Cohesive Granular Media: Shear Banding, Hysteresis, and Nonlocal Effects

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Sandip Mandal ◽  
Maxime Nicolas ◽  
Olivier Pouliquen
Keyword(s):  
Granular Media ◽  
Shear Banding ◽  
Nonlocal Effects

Bendability enhancement of an age-hardenable aluminum alloy: Part II — multiscale numerical modeling of shear banding and fracture

2019 ◽  
Vol 754 ◽  
pp. 161-177 ◽  
Author(s):  
Waqas Muhammad ◽  
Abhijit P. Brahme ◽  
Usman Ali ◽  
Jürgen Hirsch ◽  
Olaf Engler ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Aluminum Alloy ◽  
Shear Banding ◽  
Alloy Part

Perspectives on shear banding in complex fluids

2008 ◽  
Vol 47 (3) ◽  
pp. 283-300 ◽  
Author(s):  
Peter D. Olmsted
Keyword(s):  
Complex Fluids ◽  
Shear Banding

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

scholarly journals THE “STRESS-DILATANCY” HYPOTHESIS REVISITED : SHEAR-BANDING RELATED INSTABILITIES

2005 ◽  
Vol 45 (2) ◽  
pp. 61-76 ◽  
Author(s):  
IOANNIS VARDOULAKIS ◽  
IOANNIS-ORESTIS GEORGOPOULOS
Keyword(s):  
Shear Banding
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