scholarly journals statistical segment in polymers

2008 ◽  
Keyword(s):  
Statistical Segment

scholarly journals The Statistical Segment Length of DNA: Opportunities for Biomechanical Modeling in Polymer Physics and Next-Generation Genomics

2018 ◽  
Vol 140 (2) ◽  
Author(s):  
Kevin D. Dorfman
Keyword(s):  
Genome Mapping ◽  
Persistence Length ◽  
Magnetic Tweezers ◽  
Polymer Physics ◽  
Polymer Dynamics ◽  
Segment Length ◽  
Next Generation ◽  
Bending Energy ◽  
Force Microscopy ◽  
Statistical Segment

The development of bright bisintercalating dyes for deoxyribonucleic acid (DNA) in the 1990s, most notably YOYO-1, revolutionized the field of polymer physics in the ensuing years. These dyes, in conjunction with modern molecular biology techniques, permit the facile observation of polymer dynamics via fluorescence microscopy and thus direct tests of different theories of polymer dynamics. At the same time, they have played a key role in advancing an emerging next-generation method known as genome mapping in nanochannels. The effect of intercalation on the bending energy of DNA as embodied by a change in its statistical segment length (or, alternatively, its persistence length) has been the subject of significant controversy. The precise value of the statistical segment length is critical for the proper interpretation of polymer physics experiments and controls the phenomena underlying the aforementioned genomics technology. In this perspective, we briefly review the model of DNA as a wormlike chain and a trio of methods (light scattering, optical or magnetic tweezers, and atomic force microscopy (AFM)) that have been used to determine the statistical segment length of DNA. We then outline the disagreement in the literature over the role of bisintercalation on the bending energy of DNA, and how a multiscale biomechanical approach could provide an important model for this scientifically and technologically relevant problem.

Model of a polymer chain twisted inside a statistical segment. Poly(3-hexylthiophene) in chloroform solutions

2017 ◽  
Vol 66 (6) ◽  
pp. 869-875
Author(s):  
Stanislav V Bushin ◽  
Marina A Bezrukova ◽  
Guy Koeckelberghs ◽  
André Persoons ◽  
Alexander V Yakimansky
Keyword(s):  
Polymer Chain ◽  
Statistical Segment

Correlation of binary polyolefin phase behavior with statistical segment length asymmetry

1992 ◽  
Vol 25 (20) ◽  
pp. 5547-5550 ◽  
Author(s):  
Frank S. Bates ◽  
Mark F. Schulz ◽  
Jeffrey H. Rosedale ◽  
Kristoffer Almdal
Keyword(s):  
Phase Behavior ◽  
Segment Length ◽  
Statistical Segment

A statistical segment-based approach for spoken language understanding

2010 ◽  
Author(s):  
Lucía Ortega ◽  
Isabel Galiano ◽  
Lluís-F. Hurtado ◽  
Emilio Sanchis ◽  
Encarna Segarra
Keyword(s):  
Spoken Language ◽  
Language Understanding ◽  
Statistical Segment ◽  
Spoken Language Understanding
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