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Simonin JP, Høye JS. Inclusion of solvent polarizability in the modeling of ion-dipole mixtures within the mean spherical approximation (MSA). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Trejos VM, Quintana-H J. Thermodynamic properties of confined square-well fluids with multiple associating sites. J Chem Phys 2018; 148:074703. [PMID: 29471659 DOI: 10.1063/1.5009478] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
In this work, a molecular simulation study of confined hard-spheres particles with square-well (SW) attractive interactions with two and four associating SW sites based on the first-order perturbation form of Wertheim's theory is presented. An extended version of the Gibbs ensemble technique for inhomogeneous fluids [A. Z. Panagiotopoulos, Mol. Phys. 62, 701 (1987)] is used to predict the adsorption density profiles for associating fluids confined between opposite parallel walls. The fluid is confined in four kinds of walls: hard-wall, SW wall, Lennard-Jones (LJ) 12-6 wall potential, and LJ 10-4 wall potential. We analyze the behavior of the confined system for several supercritical temperatures as a function of variation of molecular parameters: potential range λ, bulk densities ρb*, pore width H, cutoff range interaction rc*, and range of the potential and depth of the particle-wall (λw, εw*). Additionally, we include predictions for liquid-vapor coexistence of bulk associative particles and how their critical properties are modified by the presence of associative sites in the molecule. The molecular simulation data presented in this work are of prime importance to the development of theoretical approaches for inhomogeneous fluids as classical density functional theory. The simulation results presented here are resourceful for predicting adsorption isotherms of real associating fluids such as water.
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Affiliation(s)
- Víctor M Trejos
- Instituto de Química, Universidad Nacional Autónoma de México, Apdo. Postal 70213, Coyoacán 04510, Ciudad de México, México
| | - Jacqueline Quintana-H
- Instituto de Química, Universidad Nacional Autónoma de México, Apdo. Postal 70213, Coyoacán 04510, Ciudad de México, México
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Maruyama Y, Yoshida N, Hirata F. Electrolytes in biomolecular systems studied with the 3D-RISM/RISM theory. Interdiscip Sci 2011; 3:290-307. [PMID: 22179763 DOI: 10.1007/s12539-011-0104-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 04/11/2011] [Accepted: 04/13/2011] [Indexed: 12/29/2022]
Abstract
We reviewed our recent studies on the molecular recognition and stability of biomolecules in aqueous solutions, which have been carried out based on the statistical mechanics of molecular liquids, or the 3D-RISM/RISM theory. A special stress is put on roles of electrolytes in determining the stability of biomolecules.
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Affiliation(s)
- Yutaka Maruyama
- Department of Theoretical Molecular Science, Institute for Molecular Science, Okazaki, Japan
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Jung JG, Bae YC. Liquid-liquid equilibria of polymer solutions: Flory-huggins with specific interaction. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/polb.21883] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Gazzillo D, Fantoni R, Giacometti A. Fluids of spherical molecules with dipolarlike nonuniform adhesion: an analytically solvable anisotropic model. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2008; 78:021201. [PMID: 18850821 DOI: 10.1103/physreve.78.021201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Revised: 04/10/2008] [Indexed: 05/26/2023]
Abstract
We consider an anisotropic version of Baxter's model of "sticky hard spheres," where a nonuniform adhesion is implemented by adding, to an isotropic surface attraction, an appropriate "dipolar sticky" correction (positive or negative, depending on the mutual orientation of the molecules). The resulting nonuniform adhesion varies continuously, in such a way that in each molecule one hemisphere is "stickier" than the other. We derive a complete analytic solution by extending a formalism [M. S. Wertheim, J. Chem. Phys. 55, 4281 (1971)] devised for dipolar hard spheres. Unlike Wertheim's solution, which refers to the "mean spherical approximation," we employ a Percus-Yevick closure with orientational linearization, which is expected to be more reliable. We obtain analytic expressions for the orientation-dependent pair correlation function g(1,2) . Only one equation for a parameter K has to be solved numerically. We also provide very accurate expressions which reproduce K as well as some parameters, Lambda1 and Lambda2, of the required Baxter factor correlation functions with a relative error smaller than 1%. We give a physical interpretation of the effects of the anisotropic adhesion on the g(1,2) . The model could be useful for understanding structural ordering in complex fluids within a unified picture.
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Affiliation(s)
- Domenico Gazzillo
- Dipartimento di Chimica Fisica, Università di Venezia, S. Marta DD 2137, I-30123 Venezia, Italy
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Clark GNI, Haslam AJ, Galindo A, Jackson G. Developing optimal Wertheim-like models of water for use in Statistical Associating Fluid Theory (SAFT) and related approaches. Mol Phys 2006. [DOI: 10.1080/00268970601081475] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Affiliation(s)
- George Jackson
- a School of Chemical Engineering, Cornell University , Ithaca , New York , 14853 , U.S.A
| | - Walter G. Chapman
- a School of Chemical Engineering, Cornell University , Ithaca , New York , 14853 , U.S.A
| | - Keith E. Gubbins
- a School of Chemical Engineering, Cornell University , Ithaca , New York , 14853 , U.S.A
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Müller EA, Gubbins KE. Molecular-Based Equations of State for Associating Fluids: A Review of SAFT and Related Approaches. Ind Eng Chem Res 2001. [DOI: 10.1021/ie000773w] [Citation(s) in RCA: 551] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Erich A. Müller
- Departamento de Termodinámica y Fenómenos de Transferencia, Universidad Simón Bolívar, Caracas 1080, Venezuela
| | - Keith E. Gubbins
- Department of Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905
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6 Equations of state from analytically solvable integral equation approximations. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1874-5644(00)80017-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Aranovich G, Donohue P, Donohue M. A lattice model for fluids with directional interactions. J Chem Phys 1999. [DOI: 10.1063/1.479473] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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VAKARIN BE, HOLOVKO YUDUDAAMF. Integral equation theory for the four bonding sites model of I. Structure factor and compressibility associating fluids. Mol Phys 1997. [DOI: 10.1080/002689797172336] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Jamnik A. Spatial correlations and solvation interaction in a two‐component mixture of adhesive fluids. J Chem Phys 1996. [DOI: 10.1063/1.472940] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Blum L, Vericat F. Solution of the Ornstein−Zernike Equation for Spheres with Octupolar Surface Adhesion: Toward a Simple Model of Water. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp950817s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. Blum
- Department of Physics, P.O. Box 23343, University of Puerto Rico, Rio Piedras, PR 00931-3343
| | - F. Vericat
- Instituto de Física de Líquidos y Sistemas Biológicos (IFLYSIB), c.c 565 (1900), and Departamento de Físicomatematicas, Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina
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Kalyuzhnyi Y, Pizio O, Sokołowski S. Density profiles of one-component shielded sticky point fluid near a hard wall. Chem Phys Lett 1995. [DOI: 10.1016/0009-2614(95)00736-n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Pizio O, Blum L. Analytic solution of the mean spherical approximation for a dipolar hard-sphere fluid with intracore anisotropic sticky interactions. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1995; 52:572-579. [PMID: 9963458 DOI: 10.1103/physreve.52.572] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jamnik A, Bratko D. Structure of confined adhesive fluids: A Monte Carlo study. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1994; 50:1151-1161. [PMID: 9962074 DOI: 10.1103/physreve.50.1151] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Johnson JK, Gubbins KE. Phase equilibria for associating Lennard-Jones fluids from theory and simulation. Mol Phys 1992. [DOI: 10.1080/00268979200102981] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Blum L, Cummings PT, Bratko D. A general solution of the molecular Ornstein–Zernike equation for spheres with anisotropic adhesion and electric multipoles. J Chem Phys 1990. [DOI: 10.1063/1.457832] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Juanós i Timoneda J, Haymet ADJ. The spin‐dependent force model of molecular liquids: Solution of the mean spherical approximation (MSA). J Chem Phys 1989. [DOI: 10.1063/1.456031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wei D, Blum L. Nonprimitive model of electrolytes: Analytical solution of the mean spherical approximation for an arbitrary mixture of sticky ions and dipoles. J Chem Phys 1988. [DOI: 10.1063/1.455216] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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