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Kämäräinen T, Kadota K, Arima-Osonoi H, Uchiyama H, Tozuka Y. Tailoring the Self-Assembly of Steviol Glycoside Nanocarriers with Steroidal Amphiphiles. ACS Biomater Sci Eng 2023; 9:5747-5760. [PMID: 37748027 DOI: 10.1021/acsbiomaterials.3c01264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Bile salts are biosurfactants that can induce structure transformations in supramolecular nanoassemblies with conventional surfactants owing to their unique, planar amphiphilic character and the rigidity of their hydrophobic steroid skeleton. However, structural information about the association of bile salts and amphiphilic glycosides is lacking. In this work, we investigated the micelle structure of two anionic di- and trihydroxy bile salts [sodium deoxycholate (SDC) and sodium cholate (SC)] and a conventional anionic surfactant [sodium dodecyl sulfate (SDS)] in mixtures with a nonionic steviol glycoside [α-glucosyl stevia (Stevia-G)] and studied their potential as a nanocarrier system for two poorly water-soluble drugs (clotrimazole and ketoconazole). Decreased critical micelle concentrations determined from surface tension measurements demonstrate synergistic interactions between Stevia-G and SDS/SDC/SC in a decreasing order. Small-angle X-ray and neutron scattering, interpreted by a core-shell ellipsoid model, indicate that SDS and bile salts act differently on the mixed micelle structure. Compared with SDS/Stevia-G, bile salt/Stevia-G had a core-shell structure more similar to that of pure Stevia-G micelles. SDC and SDS had an increasing and decreasing influence, respectively, on the available molecular surface area in mixtures with Stevia-G on the micelle core but a similar influence on the micelle shell solvation number relative to that of their pure micellar structures. The number of bile salt hydroxyl groups was influential in determining the micelle stoichiometry: an increasing number of hydroxyl groups corresponded to decreasing bile salt aggregation numbers and a smaller hydrophobic micellar core. The core volume was the most important structural factor in explaining the drug solubilization capacity of the nanocarrier systems. Therefore, bile salt-steviol glycoside mixed micellar assemblies exhibit structure control mechanisms allowing the fine-tuning of their interior hydrophobic domains important for nanocarrier applications toward solubilization of poorly water-soluble drugs.
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Affiliation(s)
- Tero Kämäräinen
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Kazunori Kadota
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Hiroshi Arima-Osonoi
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan
| | - Hiromasa Uchiyama
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Yuichi Tozuka
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
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Yang A, McKenzie BE, Yi Y, Khair AS, Garoff S, Tilton RD. Effect of polymer/surfactant complexation on diffusiophoresis of colloids in surfactant concentration gradients. J Colloid Interface Sci 2023; 642:169-181. [PMID: 37003011 DOI: 10.1016/j.jcis.2023.03.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/16/2023] [Accepted: 03/21/2023] [Indexed: 04/01/2023]
Abstract
HYPOTHESIS A concentration gradient of surfactants in the presence of polymers that non-covalently associate with surfactants will exhibit a continually varying distribution of complexes with different composition, charge, and size. Since diffusiophoresis of colloids suspended in a solute concentration gradient depends on the relaxation of the gradient and on the interactions between solutes and particles, polymer/surfactant complexation will alter the rate of diffusiophoresis driven by surfactant gradients relative to that observed in the same concentration gradient in the absence of polymers. EXPERIMENTS A microfluidic device was used to measure diffusiophoresis of colloids suspended in solutions containing a gradient of sodium dodecylsulfate (SDS) in the presence or absence of a uniform concentration of Pluronic P123 poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) nonionic triblock copolymers. To interpret the effect of P123 on the rate of colloid diffusiophoresis, electrophoretic mobility and dynamic light scattering measurements of the colloid/solute systems were performed, and a numerical model was constructed to account for the effects of complexation on diffusiophoresis. FINDINGS Polymer/surfactant complexation in solute gradients significantly enhanced diffusiophoretic transport of colloids. Large P123/SDS complexes formed at low SDS concentrations yielded low collective solute diffusion coefficients that prolonged the existence of strong concentration gradients relative to those without P123 to drive diffusiophoresis.
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Affiliation(s)
- Angela Yang
- Center for Complex Fluids Engineering, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States.
| | - Brian E McKenzie
- Center for Complex Fluids Engineering, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Yingqi Yi
- Center for Complex Fluids Engineering, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Aditya S Khair
- Center for Complex Fluids Engineering, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Stephen Garoff
- Center for Complex Fluids Engineering, Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Robert D Tilton
- Center for Complex Fluids Engineering, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States; Center for Complex Fluids Engineering, Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States.
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Warren PB, Shin S, Stone HA. Diffusiophoresis in ionic surfactants: effect of micelle formation. SOFT MATTER 2019; 15:278-288. [PMID: 30534797 DOI: 10.1039/c8sm01472h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We explore the consequences of micelle formation for diffusiophoresis of charged colloidal particles in ionic surfactant concentration gradients, using a quasi-chemical association model for surfactant self assembly. The electrophoretic contribution to diffusiophoresis is determined by re-arranging the Nernst-Planck equations, and the chemiphoretic contribution is estimated by making plausible approximations for the density profiles in the electrical double layer surrounding the particle. For sub-micellar solutions we find that a particle will typically be propelled down the concentration gradient, although electrophoresis and chemiphoresis are finely balanced and the effect is sensitive to the detailed parameter choices and simplifying assumptions in the model. Above the critical micelle concentration (CMC), diffusiophoresis becomes much weaker and may even reverse sign, due to the fact that added surfactant goes into building micelles and not augmenting the monomer or counterion concentrations. We present detailed calculations for sodium dodecyl sulfate (SDS), finding that the typical drift speed for a colloidal particle in a ∼100 μm length scale SDS gradient is ∼1 μm s-1 below the CMC, falling to ⪅0.2 μm s-1 above the CMC. These predictions are broadly in agreement with recent experimental work.
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Affiliation(s)
- Patrick B Warren
- Unilever R&D Port Sunlight, Quarry Road East, Bebington, Wirral, CH63 3JW, UK.
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5
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Rusanov AI. Transport Properties of Surfactants in Micellar Systems. COLLOID JOURNAL 2018. [DOI: 10.1134/s1061933x18050137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nguyen A, Rhoades TC, Johnson RD, Miller KM. Influence of Anion and Crosslink Density on the Ionic Conductivity of 1,2,3‐Triazolium‐Based Poly(ionic liquid) Polyester Networks. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700337] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anh Nguyen
- 1201 Jesse D. Jones Hall Department of Chemistry Murray State University Murray KY 42071 USA
| | - Taylor C. Rhoades
- 1201 Jesse D. Jones Hall Department of Chemistry Murray State University Murray KY 42071 USA
| | - R. Daniel Johnson
- 1201 Jesse D. Jones Hall Department of Chemistry Murray State University Murray KY 42071 USA
| | - Kevin M. Miller
- 1201 Jesse D. Jones Hall Department of Chemistry Murray State University Murray KY 42071 USA
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Kinoshita K, Parra E, Needham D. Adsorption of ionic surfactants at microscopic air-water interfaces using the micropipette interfacial area-expansion method: Measurement of the diffusion coefficient and renormalization of the mean ionic activity for SDS. J Colloid Interface Sci 2017. [PMID: 28623702 DOI: 10.1016/j.jcis.2017.05.077] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The dynamic adsorption of ionic surfactants at air-water interfaces have been less-well studied than that of the simpler non-ionics since experimental limitations on dynamic surface tension (DST) measurements create inconsistencies in their kinetic analysis. Using our newly designed "Micropipette interfacial area-expansion method", we have measured and evaluated both equilibrium and dynamic adsorption of a well-known anionic surfactant, sodium dodecyl sulphate (SDS), in the absence or presence of 100mM NaCl. Our focus was to determine if and to what extent the inclusion of a new correction parameter for the "ideal ionic activity", A±i, can renormalize both equilibrium and dynamic surface tension measurements and provide better estimates of the diffusion coefficient of ionic surfactants in aqueous media obtained from electroneutral models, namely extended Frumkin isotherm and Ward-Tordai adsorption models. We found that the estimated value of the new parameter, A±i=0.29, is key to obtain the diffusion coefficient D=5.3±0.3×10-6cm2/s for SDS, in excellent agreement with the literature. These new technique and analyses can now be applied to study the interfacial adsorption of a range of both ionic and non-ionic surface-active molecules, including the potentially slower-diffusing polymers and biological materials like lipids, peptides, and proteins.
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Affiliation(s)
- Koji Kinoshita
- Center for Single Particle Science and Engineering, (SPSE), Department of Molecular Medicine, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark.
| | - Elisa Parra
- Center for Single Particle Science and Engineering, (SPSE), Department of Molecular Medicine, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
| | - David Needham
- Center for Single Particle Science and Engineering, (SPSE), Department of Molecular Medicine, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark; Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27708, USA
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Lindman B. From surfactant to cellulose and DNA self-assembly. A 50-year journey. Colloid Polym Sci 2016; 294:1687-1703. [PMID: 27795609 PMCID: PMC5063899 DOI: 10.1007/s00396-016-3927-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/07/2016] [Accepted: 07/30/2016] [Indexed: 11/06/2022]
Abstract
Surfactants have been the basis for applications in several industrial sectors for a long time. However, fundamental research was 50 years ago still limited to a small number of academic groups and even basic aspects were controversial. The field has since undergone an enormous expansion and the improved understanding has laid the basis of numerous new products as well as been the basis of important parts of nano-science and -technology.The present author has during 50 years in academia devoted most of his research to amphiphilic compounds, including both surfactants and polymers. Hereby, I had the privilege of following a very exciting development. In 2015, I had the honour to receive the Life-time Achievement Award of IACIS, the International Association of Colloid and Interface Scientists. IACIS organizes since the 1970s a tri-annual symposium, typically the best attended in the field. For the first time since 2000, it was in 2015 organized in Europe, namely Mainz, Germany. This treatise is based on my award lecture in Mainz, which covered developments from my first research as a new Ph D student in Stockholm to current work as an emeritus and visiting professor. Interestingly, discoveries in my very early work contributed to solving problems in now on-going research. Håkan Wennerström kindly wrote a quite comprehensive paper about my achievements a few years ago (Adv Colloid Interf Sci 205:1-8, [1]). In writing the present paper, I have strived at covering mainly topics not treated in detail by Håkan. In fact, I will emphasize very much our early studies as well as our studies of surfactant self-assembly by NMR and in particular look at the developments of our research and connections between different research topics.
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Affiliation(s)
- Björn Lindman
- Physical Chemistry, University of Lund, P.O. Box 124, 221 00 Lund, Sweden
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Leong T, Yasui K, Kato K, Harvie D, Ashokkumar M, Kentish S. Effect of surfactants on single bubble sonoluminescence behavior and bubble surface stability. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 89:043007. [PMID: 24827332 DOI: 10.1103/physreve.89.043007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Indexed: 06/03/2023]
Abstract
The effect of surfactants on the radial dynamics of a single sonoluminescing bubble has been investigated. Experimentally, it is observed that an increase in the surfactant concentration leads to a decline in the oscillation amplitude and hence light emission intensity. Numerical simulations support this result, showing that under the driving pressures required to achieve single bubble sonoluminescence (SBSL), the surface properties, namely, the surface elasticity and dilatational viscosity, contribute to the damping of the radial amplitude in the bubble oscillation. In most cases this stabilizes the bubble surface, and contributes to a decreased light intensity. A stronger driving pressure is necessary to achieve equivalent light emission to a surfactant-free bubble. However, as the driving pressure is increased, the surface stability also decreases, making it practically very difficult for a bubble to achieve high SBSL intensities in concentrated surfactant solutions. Although more stable owing to more mild pulsations, the instability mechanism for a surfactant-coated bubble at higher ambient radii is more likely to be of the Rayleigh-Taylor type than that of a clean bubble at the same given acoustic parameters, which can lead to bubble disintegration before correcting mechanisms can bring the bubble back into the stable sonoluminescence regime.
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Affiliation(s)
- Thomas Leong
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, VIC 3010, Australia and Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
| | - Kyuichi Yasui
- National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan
| | - Kazumi Kato
- National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan
| | - Dalton Harvie
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, VIC 3010, Australia
| | - Muthupandian Ashokkumar
- School of Chemistry, The University of Melbourne, VIC 3010, Australia and Chemistry Department, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sandra Kentish
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, VIC 3010, Australia
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10
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Björn Lindman: fifty years in science and technology. Adv Colloid Interface Sci 2014; 205:1-8. [PMID: 24055028 DOI: 10.1016/j.cis.2013.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 05/17/2013] [Accepted: 05/17/2013] [Indexed: 11/20/2022]
Abstract
Björn Lindman has for fifty years had an active role in science and technology. His main contributions are briefly described. In the science part particular emphasis is put on his studies of ion binding, of amphiliphilc self-association, of molecular diffusion in solution and of polymer-surfactant systems. Furthermore we describe his role in introducing scientific areas, his role in scientific collaborations and his contributions to scientific organizations. The text is concluded by some personal reflections by the author.
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Horst R, Stanczak P, Serrano P, Wüthrich K. Translational diffusion measurements by microcoil NMR in aqueous solutions of the Fos-10 detergent-solubilized membrane protein OmpX. J Phys Chem B 2012; 116:6775-80. [PMID: 22335573 DOI: 10.1021/jp212401w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aqueous solutions of the detergent Fos-10 (n-decylphosphocholine) without and with addition of the integral membrane protein (IMP) OmpX (outer membrane protein X) have been characterized using pulsed field gradient-stimulated echo (PFG-STE) NMR experiments for measurements of translational diffusion coefficients. Effective diffusion coefficients for Fos-10 micelles in the absence of OmpX were obtained by observation of NMR signals from 10-bromodecan-1-ol that had been inserted into the micelles, and in the presence of OmpX by NMR observation of the protein. It is thus shown that solutions of Fos-10-reconstituted OmpX can be quantitatively described as a mixture of Fos-10 monomers, uniform Fos-10 micelles, and uniform OmpX-containing Fos-10 micelles, with Fos-10 monomers in fast exchange between the pools of these three species. This result establishes an avenue for efficient determination of the effective translational diffusion coefficients of IMP-containing detergent micelles based on observation of the intense detergent NMR signals, which is also applicable with unlabeled IMPs. This monitoring of the species present in a given IMP solution contributes to improved guidelines for rational selection of detergent and buffer conditions in structural studies of integral membrane proteins.
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Affiliation(s)
- Reto Horst
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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Arkhipov VP, Idiyatullin ZS. Binding of solvent molecules by micelles of ionic surfactants. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2011. [DOI: 10.1134/s0036024412010050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Danov KD, Kralchevsky PA, Ananthapadmanabhan KP, Lips A. Influence of electrolytes on the dynamic surface tension of ionic surfactant solutions: Expanding and immobile interfaces. J Colloid Interface Sci 2006; 303:56-68. [PMID: 16920132 DOI: 10.1016/j.jcis.2006.07.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Revised: 07/08/2006] [Accepted: 07/14/2006] [Indexed: 10/24/2022]
Abstract
Here, we derive analytical asymptotic expressions for the dynamic surface tension of ionic surfactant solutions in the general case of nonstationary interfacial expansion. Because the diffusion layer is much wider than the electric double layer, the equations contain a small parameter. The resulting perturbation problem is singular and it is solved by means of the method of matched asymptotic expansions. The derived general expression for the dynamic surface tension is simplified for the special case of immobile interface and for the maximum bubble pressure method (MBPM). The case of stationary interfacial expansion is also considered. The effective diffusivity of the ionic surfactant essentially depends on the concentrations of surfactant and nonamphiphilic salt. To test the theory, the derived equations are applied to calculate the surfactant adsorption from MBPM experimental data. The results excellently agree with the adsorption determined independently from equilibrium surface-tension isotherms. The derived theoretical expressions could find application for interpreting data obtained by MBPM and other experimental methods for investigating interfacial dynamics.
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Affiliation(s)
- Krassimir D Danov
- Laboratory of Chemical Physics and Engineering, Faculty of Chemistry, University of Sofia, 1164 Sofia, Bulgaria
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Christov NC, Danov KD, Kralchevsky PA, Ananthapadmanabhan KP, Lips A. Maximum bubble pressure method: Universal surface age and transport mechanisms in surfactant solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:7528-42. [PMID: 16922530 DOI: 10.1021/la061239h] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Here, based on the theoretical analysis of results for two ionic surfactants, sodium dodecyl sulfate (SDS) and dodecyl trimethylammonium bromide (DTAB), we develop a new approach for quantitative interpretation of data from the maximum bubble pressure method. A given tensiometer is characterized by an apparatus function, A(t), and by an apparatus constant. The former represents the time dependence of the bubble surface area, whereas the latter is expressed through integrals of A(t). The experiment indicates that both of them are independent of the surfactant type and concentration. Moreover, if a certain criterion is satisfied, the experimental results depend on the surface dilatation only through the apparatus constant. This makes the data interpretation much easier. The knowledge of the apparatus constant gives a general time scale (universal surface age) that makes the results independent of the specific bubble-pressure setup and produces dynamic surface tension curves that are universal characteristics of the investigated solutions. A new equation for data processing is proposed, which provides excellent fits of the dynamic surface tension. In the case of micellar solutions, the data analysis enables one to identify the kinetic regime of adsorption (among four possible regimes). For the investigated surfactant solutions, the diffusion regime "BC" was identified, for which the fast micellar process is equilibrated, whereas the slow micellar process is negligible. Upgraded with the developed approach for quantitative data interpretation, the bubble-pressure tensiometry could be a useful tool for a detailed analysis of the adsorption processes in more complex systems.
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Affiliation(s)
- Nikolay C Christov
- Laboratory of Chemical Physics & Engineering, Faculty of Chemistry, University of Sofia, 1164 Sofia, Bulgaria
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Okamoto K, Hirota N, Tominaga T, Terazima M. Translational Diffusion of Ion Radicals Created by Electron Transfer in Charged Micellar Solutions Probed by the Transient Grating Method and the Taylor Dispersion Method. J Phys Chem A 2001. [DOI: 10.1021/jp004536i] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koichi Okamoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502 Japan, and Department of Applied Chemistry, Okayama University of Science, 1-1 Ridai-cho, Okayama, 700−0005, Japan
| | - Noboru Hirota
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502 Japan, and Department of Applied Chemistry, Okayama University of Science, 1-1 Ridai-cho, Okayama, 700−0005, Japan
| | - Toshihiro Tominaga
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502 Japan, and Department of Applied Chemistry, Okayama University of Science, 1-1 Ridai-cho, Okayama, 700−0005, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502 Japan, and Department of Applied Chemistry, Okayama University of Science, 1-1 Ridai-cho, Okayama, 700−0005, Japan
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Danov K, Vlahovska P, Kralchevsky P, Broze G, Mehreteab A. Adsorption kinetics of ionic surfactants with detailed account for the electrostatic interactions: effect of the added electrolyte. Colloids Surf A Physicochem Eng Asp 1999. [DOI: 10.1016/s0927-7757(99)00099-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Raulet R, Furo I, Brondeau J, Diter B, Canet D. Water-surfactant contact studied by 19F-1H heteronuclear overhauser effect spectroscopy. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 1998; 133:324-329. [PMID: 9716475 DOI: 10.1006/jmre.1998.1487] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Intermolecular 19F-1H cross-relaxation is measured using heteronuclear Overhauser effect NMR spectroscopy (HOESY) in the micellar solution of cesium pentadecafluorooctanoate. The results are analyzed in terms of a weak 1H-19F cross-relaxation between the water protons and the fluorines in the fluoroalkyl chain and a strong 19F-19F cross-relaxation within the fluoroalkyl chain. The water-surfactant cross-relaxation indicates a water approach to the first CF2 segment in the order of 2.0 A and a short (<<ns) water residence time. Evidence of fluorine hydration further inside the micelle is presented. Copyright 1998 Academic Press.
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Affiliation(s)
- R Raulet
- Laboratoire de Methodologie RMN (UPRESA 7042, FU CNRS E008-INCM), Universite Henri Poincare, Vandoeuvre les Nancy Cedex, F-54506, France
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Horozov TS, Kralchevsky PA, Danov KD, Ivanov IB. INTERFACIAL RHEOLOGY AND KINETICS OF ADSORPTION FROM SURFACTANT SOLUTION. J DISPER SCI TECHNOL 1997. [DOI: 10.1080/01932699708943761] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Effect of the surface expansion and wettability of the capillary on the dynamic surface tension measured by the maximum bubble pressure method. Colloids Surf A Physicochem Eng Asp 1996. [DOI: 10.1016/0927-7757(96)03574-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dynamic surface tension of micellar solutions studied by the maximum bubble pressure method. Colloid Polym Sci 1995. [DOI: 10.1007/bf00652352] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dynamic surface tension of micellar solutions studied by the maximum bubble pressure method. Colloid Polym Sci 1994. [DOI: 10.1007/bf00652386] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Theory of gel filtration chromatography. Elution patterns of solutes in the presence of micellar and premicellar aggregates of micelle-forming surfactants. Colloid Polym Sci 1993. [DOI: 10.1007/bf00659296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dushkin C, Ivanov I. Effect of the polydispersity of diffusing micelles on the surface elasticity. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0166-6622(91)80279-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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A reexamination of the measurement of dynamic surface tensions using the maximum bubble pressure method. J Colloid Interface Sci 1989. [DOI: 10.1016/0021-9797(89)90262-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Micellar growth in mixed anionic/cationic surfactant solutions: Sodium dodecyl sulfate/octyltrimethylammonium bromide system. J Colloid Interface Sci 1989. [DOI: 10.1016/0021-9797(89)90121-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sandeaux J, Kamenka N, Brun B, Lindman B. Interaction entre les anions dodécylsulfate et chlorure et la sérum albumine humaine. Etude par autodiffusion de l'effet de compétition. Colloid Polym Sci 1980. [DOI: 10.1007/bf01480841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Aggregation, aggregate composition, and dynamics in aqueous sodium cholate solutions. J Colloid Interface Sci 1980. [DOI: 10.1016/0021-9797(80)90101-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kamenka N, Chorro M, Fabre H, Lindman B, Rouviere J, Cabos C. Etude par viscosité et autodiffusion de solutions aqueuses de divers n-alkyl-benzènesulfonates. Colloid Polym Sci 1979. [DOI: 10.1007/bf01474106] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Stilbs P, Jermer J, Lindman B. Counterion binding in surfactant systems. Electron spin relaxation of the vanadyl ion. J Colloid Interface Sci 1977. [DOI: 10.1016/0021-9797(77)90283-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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