Academic literature on the topic 'Worm-like chain model'

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Journal articles on the topic "Worm-like chain model"

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Xu, Xin, and Ying Jiang. "Applications of worm-like chain model in polymer physics." International Journal of Modern Physics B 32, no. 18 (2018): 1840006. http://dx.doi.org/10.1142/s0217979218400064.

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Saito, Takahashi and Yunoki developed the continuous version of worm-like chain (WLC) model that is very suitable for description of the polymer conformational properties affected by chain rigidity. By adjusting persistence length directly, the WLC model can depict the extensive range of chain conformations from flexible chains to rigid chains. It is widely accepted that more physical properties of real polymer can be obtained by utilizing coarse-grained model than Gaussian chain (GSC). This paper reviews the applications of the WLC model in the framework based on self-consistent field theory,
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Fu, Yi-Ben, Yu-Ru Liu, Peng-Ye Wang, and Ping Xie. "A revised worm-like chain model for elasticity of polypeptide chains." Journal of Polymer Science Part B: Polymer Physics 56, no. 4 (2017): 297–307. http://dx.doi.org/10.1002/polb.24541.

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Hillgärtner, Markus, Kevin Linka, and Mikhail Itskov. "Worm-like chain model extensions for highly stretched tropocollagen molecules." Journal of Biomechanics 80 (October 2018): 129–35. http://dx.doi.org/10.1016/j.jbiomech.2018.08.034.

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Ogden, Ray W., Giuseppe Saccomandi, and Ivonne Sgura. "On worm-like chain models within the three-dimensional continuum mechanics framework." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 462, no. 2067 (2005): 749–68. http://dx.doi.org/10.1098/rspa.2005.1592.

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In this paper, we review critically some basic models derived from the statistics of long-chain molecules and then discuss the status of such models within the three-dimensional nonlinear theory of elasticity. We draw attention to some deficiencies of certain worm-like chain (WLC) models when viewed within the three-dimensional continuum mechanics framework. Modifications of the WLC models motivated by such considerations and avoiding these deficiencies are then discussed and shown to correspond well with data generated by the exact WLC model.
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Xiao, Hongyi, Xinghua Zhang, and Dadong Yan. "A Local-Exchange Model of Folding Chain Surface of Polymer Crystal Based on Worm-Like Chain Model within Single-Chain in Mean-Field Theory." Polymers 12, no. 11 (2020): 2555. http://dx.doi.org/10.3390/polym12112555.

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The structure of amorphous layer of folding surface controls the properties of the polymer lamellar crystal, which consists of chains with a loop conformation. The surface tension depends on the length and the distance between two injection points of the loop which involving the reptation motion and lateral exchange motion of the stems. In the present work, a local-exchange motion model based on the worm-like chain model is developed to investigate the effects of lateral motion of stems on the release the surface tension. The optimal distance between two injection points is determined by the b
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Ou, C. R. "WORM LIKE CHAIN MODEL - PROPOGATIONS OF THE DOMAIN WALLS AND THE STABILITIES ISSUES." Journal of Biomechanics 40 (January 2007): S734. http://dx.doi.org/10.1016/s0021-9290(07)70722-4.

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Chan, Yue, Richard G. Haverkamp, and James M. Hill. "Force-extension formula for the worm-like chain model from a variational principle." Journal of Theoretical Biology 262, no. 3 (2010): 498–504. http://dx.doi.org/10.1016/j.jtbi.2009.10.009.

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Liao, Xinyu, Prashant K. Purohit, and Arvind Gopinath. "Extensions of the worm-like-chain model to tethered active filaments under tension." Journal of Chemical Physics 153, no. 19 (2020): 194901. http://dx.doi.org/10.1063/5.0025200.

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DING, YAN, and TIEJUN LI. "A NOTE ON THE ANALYSIS OF A HETEROGENEOUS ROD-LIKE CHAIN IN DNA MODELING." International Journal of Modern Physics B 22, no. 14 (2008): 2213–24. http://dx.doi.org/10.1142/s0217979208039460.

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Two different results concerning the elastic behavior of the heterogeneous worm-like chain (WLC) [D. Bensimon et al., Europhys. Lett.42, 97 (1998)] and rod-like chain (RLC) [P. Nelson, Phys. Rev. Lett.80, 5810 (1998)] are compared. We argue that the RLC is a more suitable model for double-stranded (ds-) DNA. As the hetero-RLC is the basic model for studying sequence-dependent ds-DNA, a rigorous path integral analysis for the effective bending persistence length is performed in the weak disorder limit. The novelty of the paper is in analyzing a path integral on the Lie group SO(3) with random f
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Hsu, Hsiao-Ping, Wolfgang Paul, and Kurt Binder. "Polymer chain stiffness vs. excluded volume: A Monte Carlo study of the crossover towards the worm-like chain model." EPL (Europhysics Letters) 92, no. 2 (2010): 28003. http://dx.doi.org/10.1209/0295-5075/92/28003.

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Dissertations / Theses on the topic "Worm-like chain model"

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Bagheri, Mehran. "Intrinsically Disordered Proteins: Mechanics, Assemblies, and Structural Transitions." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36576.

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Proteins are essential parts of living organisms that initiate and control almost all cellular processes. Despite the widely accepted belief that all functional proteins fold into stable and well-defined three-dimensional (3D) structures mandatory for protein activity, the existence of biologically functional disordered proteins has been increasingly recognized during past two decades. Proteins with inherent structural disorder, commonly known as intrinsically disordered proteins (IDPs), play many roles in a biological context. However, in contrast to their folded counterparts, they are dynami
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Le, Treut Guillaume. "Models of chromosome architecture and connection with the regulation of genetic expression." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS411/document.

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Plusieurs indices suggèrent que le repliement du chromosome et la régulation de l’expression génétique sont étroitement liés. Par exemple, la co-expression d’un grand nombre de gènes est favorisée par leur rapprochement dans l’espace cellulaire. En outre, le repliement du chromosome permet de faire émerger des structures fonctionnelles. Celles-ci peuvent être des amas condensés et fibrillaires, interdisant l’accès à l’ADN, ou au contraire des configurations plus ouvertes de l’ADN avec quelques amas globulaires, comme c’est le cas avec les usines de transcription. Bien que dissemblables au prem
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Book chapters on the topic "Worm-like chain model"

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Milstein, Joshua N., and Jens-Christian Meiners. "Worm-Like Chain (WLC) Model." In Encyclopedia of Biophysics. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-16712-6_502.

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"Worm-Like Chain Model." In Encyclopedia of Biophysics. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-16712-6_101124.

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"Kratky-Porod Worm-Like Chain Model." In Encyclopedia of Biophysics. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-16712-6_100509.

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Bensimon, David, Vincent Croquette, Jean-François Allemand, Xavier Michalet, and Terence Strick. "The Mechanical Properties of Nucleic Acids." In Single-Molecule Studies of Nucleic Acids and Their Proteins. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198530923.003.0004.

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This chapter reviews models which describe the elastic properties of stretched polymers—the Kratky–Porod, Freely Jointed Chain (FJC), and Worm-Like Chain (WLC) models—and the effect of self-avoidance on results derived from these. The models are compared with double-stranded DNA (dsDNA) stretching experiments. Dynamics of a single polymer in the presence (Zimm model) or absence (Rouse model) of hydrodynamic interactions between its segments is described, and results on the dynamics of dsDNA and ssDNA of various lengths are discussed. Theoretical and experimental behaviour of twisted DNA is described, deducing the molecule’s torsional modulus and its coupling between stretching and twisting. After discussing the braiding of two DNA molecules and simulation of the twisting and stretching of DNA molecules, this chapter describes the results of stretching experiments on ssDNA and RNA, where self-avoiding and base-pairing interactions contribute to elastic behaviour.
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Conference papers on the topic "Worm-like chain model"

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Ou, Chung-Jen, Chung-Ming Ou, Chien-Han Lin, and Hong-Syuan Lin. "Domain switching mechanism for ferroelectric moleculars and the comparision to the biomolecular worm like chain(WLC) model." In 2011 IEEE 4th International Nanoelectronics Conference (INEC). IEEE, 2011. http://dx.doi.org/10.1109/inec.2011.5991681.

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Raj, Ritwik, and Prashant K. Purohit. "Role of the Kinetic Relation in a Phase Transition-Based Model for Mechanical Unfolding in Macromolecules." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40760.

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We present applications of a model developed to describe unfolding in macromolecules under an axial force. We show how different experimentally observed force-extension behaviors can be reproduced within a common theoretical framework. We propose that the unfolding occurs via the motion of a folded/unfolded interface along the length of the molecule. The molecules are modeled as one-dimensional continua capable of existing in two metastable states under an applied tension. The interface separates these two metastable states and represents a jump in stretch, which is related to applied force by
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Lee, Byung Chul, Chanmin Kang, Jinsik Kim, Ji Yoon Kang, Hyun-Joon Shin, and Sang-Youp Lee. "Electrically Tethered DNA Stretching in Nanochannels." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10986.

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In present study, stretching dynamics of electrically tethered λ-DNA (48.5kbp) in SiO2 nanochannels has been investigated. At high electrical fields (above 20kV/m), elongations of electrically tethered DNA molecules were observed. At high E-fields, DNAs were tethered in nanochannels and were spontaneously elongated along the nanochannels up to about 90 percent of its contour length. With E-field turned off, the measured relaxation time was about 10 sec from stretching with 20kV/m. In current study, observed behaviors of DNA molecules in nanochannels were explained by field-induced dielectropho
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Yun, Zhong, Chuang Xiang, and Liang Wang. "A hybird red blood cell model based on the linear spring network model and worm-like-chains model." In 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI). IEEE, 2017. http://dx.doi.org/10.1109/cisp-bmei.2017.8302241.

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Lykotrafitis, George, and He Li. "Two-Component Coarse-Grain Model for Erythrocyte Membrane." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62133.

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Biological membranes are vital components of living cells as they function to maintain the structural integrity of the cells. Red blood cell (RBC) membrane comprises the lipid bilayer and the cytoskeleton network. The lipid bilayer consists of phospholipids, integral membrane proteins, peripheral proteins and cholesterol. It behaves as a 2D fluid. The cytoskeleton is a network of spectrin tetramers linked at the actin junctions. It is connected to the lipid bilayer primarily via Band-3 and ankyrin proteins. In this paper, we introduce a coarse-grained model with high computational efficiency f
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