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Makita N, Ullner M, Yoshikawa K. Conformational Change of Giant DNA with Added Salt As Revealed by Single Molecular Observation. Macromolecules 2006. [DOI: 10.1021/ma060669b] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Naoko Makita
- Faculty of Environmental and Information Sciences, Yokkaichi University, Yokkaichi 512-8512, Japan; Theoretical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden; and Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Magnus Ullner
- Faculty of Environmental and Information Sciences, Yokkaichi University, Yokkaichi 512-8512, Japan; Theoretical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden; and Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Kenichi Yoshikawa
- Faculty of Environmental and Information Sciences, Yokkaichi University, Yokkaichi 512-8512, Japan; Theoretical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden; and Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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Dobrynin AV. Electrostatic Persistence Length of Semiflexible and Flexible Polyelectrolytes. Macromolecules 2005. [DOI: 10.1021/ma051353r] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrey V. Dobrynin
- Polymer Program, Institute of Materials Science and Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3136
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Ullner M. Comments on the Scaling Behavior of Flexible Polyelectrolytes within the Debye−Hückel Approximation. J Phys Chem B 2003. [DOI: 10.1021/jp027381i] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Magnus Ullner
- Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, S-221 00 Lund, Sweden
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Nguyen TT, Shklovskii BI. Persistence length of a polyelectrolyte in salty water: Monte Carlo study. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2002; 66:021801. [PMID: 12241202 DOI: 10.1103/physreve.66.021801] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2002] [Indexed: 05/23/2023]
Abstract
We address the long standing problem of the dependence of the electrostatic persistence length l(e) of a flexible polyelectrolyte (PE) on the screening length r(s) of the solution within the linear Debye-Hückel theory. The standard Odijk, Skolnick, and Fixman (OSF) theory suggests l(e) proportional, variant r(2)s, while some variational theories and some computer simulations suggest l(e) proportional, variant r(s). In this paper, we use Monte Carlo simulations to study the conformation of a simple polyelectrolyte. Using four times longer PEs than in previous simulations and refined methods for the treatment of the simulation data, we show that the results are consistent with the OSF dependence l(e) proportional, variant r(2)s. The linear charge density of the PE, which enters in the coefficient of this dependence is properly renormalized to take into account local fluctuations.
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Affiliation(s)
- T T Nguyen
- Theoretical Physics Institute, University of Minnesota, 116 Church Street Southeast, Minneapolis, Minnesota 55455, USA
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Ullner M, Woodward CE. Orientational Correlation Function and Persistence Lengths of Flexible Polyelectrolytes. Macromolecules 2002. [DOI: 10.1021/ma010863s] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Magnus Ullner
- Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, S-221 00 Lund, Sweden; and School of Chemistry, University College, University of New South Wales, Australian Defence Force Academy, Canberra ACT 2600, Australia
| | - Clifford E. Woodward
- Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, S-221 00 Lund, Sweden; and School of Chemistry, University College, University of New South Wales, Australian Defence Force Academy, Canberra ACT 2600, Australia
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Dobrynin AV, Deshkovski A, Rubinstein M. Adsorption of Polyelectrolytes at Oppositely Charged Surfaces. Macromolecules 2001. [DOI: 10.1021/ma0013713] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrey V. Dobrynin
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599-3290
| | - Alexander Deshkovski
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599-3290
| | - Michael Rubinstein
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27599-3290
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Cannavacciuolo L, Sommer C, Pedersen JS, Schurtenberger P. Size, flexibility, and scattering functions of semiflexible polyelectrolytes with excluded volume effects: monte carlo simulations and neutron scattering experiments. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 2000; 62:5409-19. [PMID: 11089104 DOI: 10.1103/physreve.62.5409] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2000] [Indexed: 04/15/2023]
Abstract
We present a systematic Monte Carlo study of the scattering function S(q) of semiflexible polyelectrolytes at infinite dilution, in solutions with different concentrations of added salt. In the spirit of a theoretical description of polyelectrolytes in terms of the equivalent parameters, namely, persistence length and excluded volume interactions, we used a modified wormlike chain model, in which the monomers are represented by charged hard spheres placed at distance a. The electrostatic interactions are approximated by a Debye-Huckel potential. We show that the scattering function is quantitatively described by that of uncharged wormlike chains with excluded volume effects provided that an electrostatic contribution is added to the persistence length. In addition we have studied the expansion of the radius of gyration and of the end-to-end distance. The results are in agreement with the picture outlined in the Odijk-Skolnick-Fixman theory, in which the behavior of charged polymers is described only in terms of increasing local rigidity and excluded volume effects. Moreover, the Monte Carlo data are found to be in very good agreement with experimental scattering measurements with equilibrium polyelectrolytes, i.e., giant wormlike micelles formed in mixtures of nonionic and ionic surfactants in dilute aqueous solution, with added salt.
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Affiliation(s)
- L Cannavacciuolo
- Institut fur Polymere, Eidgenossische Technische Hochschule, CH-8092 Zurich, Switzerland
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Mylonas Y, Staikos G, Ullner M. Chain conformation and intermolecular interaction of partially neutralized poly(acrylic acid) in dilute aqueous solutions. POLYMER 1999. [DOI: 10.1016/s0032-3861(98)00861-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Schäfer H, Seidel C. Structure of Polyelectrolytes in Solution: A Monte Carlo Study. Macromolecules 1997. [DOI: 10.1021/ma961906l] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Heiko Schäfer
- Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Kantstrasse 55, D-14513 Teltow-Seehof, Germany
| | - Christian Seidel
- Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Kantstrasse 55, D-14513 Teltow-Seehof, Germany
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Ullner M, Jönsson B, Peterson C, Sommelius O, Söderberg B. The electrostatic persistence length calculated from Monte Carlo, variational and perturbation methods. J Chem Phys 1997. [DOI: 10.1063/1.474139] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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