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Kotsi K, Dong T, Kobayashi T, Mc Robbie I, Striolo A, Angeli P. Synergistic effects between a non-ionic and an anionic surfactant on the micellization process and the adsorption at liquid/air surfaces. SOFT MATTER 2024; 20:523-534. [PMID: 38116791 DOI: 10.1039/d3sm01454a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Predicting the behaviour of solutions with surfactants of significantly different critical micelle concentration (CMC) values remains a challenge. The study of the molecular interactions within micelles and interfaces in surfactant combinations used in everyday products is essential to understand these complex systems. In this work, the equilibrium and dynamic surface tension in the presence of mixed non-ionic (tristyrylphenol ethoxylates) and anionic (sodium benzene sulfonate with alkyl chain lengths of C10-C13) surfactants, commonly encountered as delivery systems in agrochemicals, were studied and their CMC values were determined. For the surfactant mixtures, four molar ratios were examined: nEOT/nNaDDBS = 0.01, 0.1, 1, 4 and two different cases were analysed, the premixed and the add one by one surfactant. The surface tension for single surfactants stabilised quickly, while the mixtures needed a long time to reach equilibrium; up to 15 h for the premixed mixtures and 40 min when surfactants were added one by one. The CMC values for the nEOT/nNaDDBS = 0.01, 0.1 premixed surfactant mixtures were found to be in between the CMC values of the single surfactants, but those for the nEOT/nNaDDBS = 1 and 4 mixtures were lower than the CMCs of both single surfactants. Calculations based on the regular solution theory suggested that there are attractive forces in the mixed micelles and at the interface layers, while the supramolecular assemblies in the bulk (i.e., micelles) and at interfaces (surfactant films) are preferentially enriched in EOT.
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Affiliation(s)
- Kristo Kotsi
- ThAMeS Multiphase, Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Teng Dong
- ThAMeS Multiphase, Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Takeshi Kobayashi
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Ian Mc Robbie
- Innospec Ltd, Oil Sites Road, Ellesmere Port, Cheshire, CH65 4EY, UK
| | - Alberto Striolo
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- School of Sustainable Chemical, Biological and Materials Engineering, Sarkeys Energy Center, The University of Oklahoma, Norman, OK 73019, USA
| | - Panagiota Angeli
- ThAMeS Multiphase, Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
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2
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Synergistic and antagonistic effects in micellization of mixed surfactants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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A UV–visible and conductometric studies on the analyses of valine and ninhydrin reaction in aqueous-surfactant solutions of dicationic geminis (n-s-n type). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118587] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Liao YF, Zhou MH, Zhang Y, Peng YY, Jian JX, Lu F, Tong QX. Facile synthesis and marked pH-responsive behavior of novel foaming agents based on amide- and ester-linked morpholine fluorosurfactants. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Kanduč M, Schneck E, Stubenrauch C. Intersurfactant H-bonds between head groups of n-dodecyl-β-d-maltoside at the air-water interface. J Colloid Interface Sci 2021; 586:588-595. [DOI: 10.1016/j.jcis.2020.10.125] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 10/23/2022]
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6
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Qin T, Goual L, Piri M. Synergistic effects of surfactant mixtures on the displacement of nonaqueous phase liquids in porous media. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123885] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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7
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Common black film stability and synergetic adsorption in ionic−nonionic mixed surfactant systems. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Zhao X, Liu H, Zhang X, Zhu H, Ao Q. Surface structure and volatile characteristic of peanut proteins obtained through AOT reverse micelles. Colloids Surf B Biointerfaces 2019; 173:860-868. [DOI: 10.1016/j.colsurfb.2018.10.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 11/26/2022]
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9
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Das S, Oldham ED, Lehmler HJ, Knutson BL, Rankin SE. Tuning the position of head groups by surfactant design in mixed micelles of cationic and carbohydrate surfactants. J Colloid Interface Sci 2018; 512:428-438. [PMID: 29096103 DOI: 10.1016/j.jcis.2017.10.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 10/13/2017] [Accepted: 10/16/2017] [Indexed: 11/15/2022]
Abstract
HYPOTHESIS Emerging applications of carbohydrate/cationic surfactant mixtures require not only synergistic mixing, but also accessible sugar headgroups at the exterior of micelles. A previous study showed that the glucoside headgroups of octyl-β-d-glucopyranoside aggregate at the interior of mixed micelles with equimolar cetyltrimethylammonium bromide rather than mixing with trimethylammonium groups at the corona. The current study tests the hypothesis that structural characteristics of the surfactants (the relative lengths of the alkyl tails and the type of linker) can be tuned to shift the carbohydrate groups to micelle surfaces. EXPERIMENTS The structural arrangement of 30 mM equimolar mixed micelle solutions in D2O is investigated using NMR. The dynamics in different regions are probed using 1H spin-lattice (T1) and spin-spin (T2) relaxation measurements, and relative positioning by nuclear Overhauser effect spectroscopy (NOESY). Additional micellar properties are determined using solvatochromic fluorescent probes. FINDINGS Matching surfactant alkyl tail lengths is found ineffective at "pushing out" the carbohydrate headgroups due to a large mismatch in interactions between the headgroups and D2O. However, inserting a novel polar triazole group between the carbohydrate head group and the hydrophobic tail (e.g. in n-octyl-β-d-xylopyranoside) using click chemistry is able to "pull out" the carbohydrate, thus giving accessible sugar moieties at the surface of mixed micelles.
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Affiliation(s)
- Saikat Das
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506-0046, United States
| | - Edward Davis Oldham
- Department of Chemistry, University of Mary Washington, Fredericksburg, VA 22401, United States
| | - Hans-Joachim Lehmler
- Department of Environmental and Occupational Health, University of Iowa, Iowa City, IA 52242, United States
| | - Barbara L Knutson
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506-0046, United States
| | - Stephen E Rankin
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506-0046, United States.
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10
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Cho HJ, Sresht V, Wang EN. Predicting Surface Tensions of Surfactant Solutions from Statistical Mechanics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2386-2395. [PMID: 29338268 DOI: 10.1021/acs.langmuir.7b03749] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The importance of surfactants to various industries necessitates a predictive understanding of their surface tension and adsorption behavior in terms of molecular characteristics. Previous models are highly empirical, require fitting parameters, and have limited applicability at various temperatures. Here, we provide a surface tension model based on statistical mechanics that (1) is thermodynamically consistent, (2) provides a higher predictive power, wherein surface tension can be calculated for any tail length, concentration, and temperature from molecular parameters, and (3) provides a physical understanding of the important molecular interactions at play. This model is applicable to both nonionic and ionic surfactants, where the effects of the electric double layer have been taken into account in the latter case. For nonionic surfactants, we were able to extend our model to predict dynamic surface tension as well. We have validated our model with tensiometry experiments for various surfactants, concentrations, and temperatures. In addition, we have validated our model with a diverse set of literature data, wherein agreement within a few mN M-1 and a correct prediction of phase change behavior is shown. The model could enable a more informed design of surfactant systems and serve as the theoretical basis for theory on more complex surfactant systems such as mixtures.
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Affiliation(s)
- H Jeremy Cho
- Department of Mechanical Engineering and ‡Department of Chemical Engineering, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Vishnu Sresht
- Department of Mechanical Engineering and ‡Department of Chemical Engineering, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Evelyn N Wang
- Department of Mechanical Engineering and ‡Department of Chemical Engineering, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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11
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Ranieri D, Preisig N, Stubenrauch C. On the Influence of Intersurfactant H-Bonds on Foam Stability: A Study with Technical Grade Surfactants. TENSIDE SURFACT DET 2018. [DOI: 10.3139/113.110537] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
From the literature on the foam stability of various surfactants with C12 alkyl chains but different head groups a clear picture emerges: Foams are more stable when hydrogen bonds can form between the head groups, i. e. when the polar head group has a hydrogen bond donor and a proton acceptor. These observations suggest that hydrogen bonds between neighbouring molecules at the surface enhance foam stability. To support this hypothesis, we carried out a systematic foaming study of two types of technical grade surfactants, one of them being capable of forming H-bonds and the other one not. As was the case for the pure surfactants we found again that more stable foams are formed when the head group is capable of forming intersurfactant H-bonds: These results will certainly affect the future design of surfactants.
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12
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Krawczyk J. Temperature impact on the water-air interfacial activity of n-octyl and n-dodecyl-β-d-glucopyranosides. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.08.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Stubenrauch C, Hamann M, Preisig N, Chauhan V, Bordes R. On how hydrogen bonds affect foam stability. Adv Colloid Interface Sci 2017; 247:435-443. [PMID: 28347413 DOI: 10.1016/j.cis.2017.02.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/06/2017] [Accepted: 02/06/2017] [Indexed: 11/28/2022]
Abstract
Do intermolecular H-bonds between surfactant head groups play a role for foam stability? From the literature on the foam stability of various surfactants with C12 alkyl chains but different head groups a clear picture emerges: stable foams are only generated when hydrogen bonds can form between the head groups, i.e. when the polar head group has a hydrogen bond donor and a proton acceptor. Stable foams can therefore be generated with surfactants having a sugar unit, a glycine, an amine oxide (at pH~5), or a carboxylic acid (at pH~pKa) as polar head group. On the other hand, aqueous foams stabilized with surfactants having oligo(ethylene oxide), phosphine oxide, quaternary ammonium, sulfate, sarcosine, amine oxide (at pH≠5), or carboxylic acid (at pH≠pKa) are not very stable. These observations suggest that hydrogen bonds between neighbouring molecules at the surface enhance foam stability. Formation of hydrogen bonds between surfactant head groups gives rise to a short-range attractive interaction that may restrict the surfactant's mobility while providing a more elastic surfactant layer which can counteract deformations. To support our hypothesis we carried out a systematic foaming study of two types of surfactants, one of them being capable of forming H-bonds and the other one not. Generating foams of all surfactants mentioned above with the same foaming conditions we found that stable foams are obtained when the head group is capable of forming intersurfactant H-bonds. The outcome of this study constitutes a new step towards the implementation of H-bonds in the future design of surfactants.
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Affiliation(s)
- Cosima Stubenrauch
- Universität Stuttgart, Institut für Physikalische Chemie, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
| | - Martin Hamann
- Universität Stuttgart, Institut für Physikalische Chemie, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Natalie Preisig
- Universität Stuttgart, Institut für Physikalische Chemie, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Vinay Chauhan
- Chalmers University of Technology, Department of Chemistry and Chemical Engineering, Applied Chemistry, SE-41296 Göteborg, Sweden
| | - Romain Bordes
- Chalmers University of Technology, Department of Chemistry and Chemical Engineering, Applied Chemistry, SE-41296 Göteborg, Sweden
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14
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Briceño-Ahumada Z, Langevin D. On the influence of surfactant on the coarsening of aqueous foams. Adv Colloid Interface Sci 2017; 244:124-131. [PMID: 26687804 DOI: 10.1016/j.cis.2015.11.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 11/20/2015] [Accepted: 11/22/2015] [Indexed: 10/22/2022]
Abstract
We review the coarsening process of foams made with various surfactants and gases, focusing on physico-chemical aspects. Several parameters strongly affect coarsening: foam liquid fraction and foam film permeability, this permeability depending on the surfactant used. Both parameters may evolve with time: the liquid fraction, due to gravity drainage, and the film permeability, due to the decrease of capillary pressure during bubble growth, and to the subsequent increase in film thickness. Bubble coalescence may enhance the bubble's growth rate, in which case the bubble polydispersity increases. The differences found between the experiments reported in the literature and between experiments and theories are discussed.
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15
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Critical thickness of foam films stabilized by nonionic or ionic surfactants and their mixtures. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.02.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Bagheri A, Khalili P. Synergism between non-ionic and cationic surfactants in a concentration range of mixed monolayers at an air–water interface. RSC Adv 2017. [DOI: 10.1039/c6ra27382c] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The mole fractions of TX100 (Xs1) and C16PC (Xs2) at the interface vs. the total surfactant concentrations in the pre-micellar region, C12, at various bulk mole fractions (y1): (●) 0.1093, (□) 0.1995, (▲) 0.2901, (+) 0.3777 (*) 0.5001 and (○) 0.5972.
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17
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Angarska JK, Ivanova DS, Manev ED. Drainage of foam films stabilized by nonionic, ionic surfactants and their mixtures. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.04.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Schellmann K, Preisig N, Claesson P, Stubenrauch C. Effects of protonation on foaming properties of dodecyldimethylamine oxide solutions: a pH-study. SOFT MATTER 2015; 11:561-571. [PMID: 25425481 DOI: 10.1039/c4sm02476a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The critical micelle concentration (cmc), the surface excess (Γ), as well as the micelle aggregation number (m) of the surfactant dodecyldimethylamine oxide (C12DMAO) have been reported to strongly depend on the pH-value of the aqueous surfactant solution. At high ionic strength, the cmc displays a minimum, while both Γ and m have a maximum at a pH-value close to the pKa of the surfactant. These experimental observations have been explained as being due to specific hydrogen bonds between the head groups, which are formed once the surfactant is partly or fully protonated. This investigation addresses the question of whether the pH also affects the foaming properties of C12DMAO solutions. To answer this question we measured the foamability and the foam stability of C12DMAO solutions at a fixed C12DMAO concentration of 5 cmc for five different pH-values, namely pH = 2, 3, 5, 8, and 10. We found that the foamability is hardly affected by the pH-value, while the foam stability strongly depends on the pH. As is the case for the above mentioned properties, the foam stability also displays an extremum in the studied pH-range, namely a maximum at pH = 5. We discuss our results in terms of the hydrogen bond hypothesis and show that this hypothesis indeed is in line with the observed trend for the foam stability. Moreover, we discuss that hydrogen bond formation may rationalize how the molecular structure of a surfactant affects foam stability.
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Affiliation(s)
- Kathrin Schellmann
- Universität Stuttgart, Institut für Physikalische Chemie, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
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19
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Bagheri A, Abolhasani A. Binary mixtures of cationic surfactants with triton X-100 and the studies of physicochemical parameters of the mixed micelles. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0232-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Chuo SC, Mohd-Setapar SH, Mohamad-Aziz SN, Starov VM. A new method of extraction of amoxicillin using mixed reverse micelles. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.03.107] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Saulnier L, Boos J, Stubenrauch C, Rio E. Comparison between generations of foams and single vertical films--single and mixed surfactant systems. SOFT MATTER 2014; 10:5280-5288. [PMID: 24838984 DOI: 10.1039/c4sm00326h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The purpose of this article is to compare experiments carried out with single vertical foam films and with foams. We focus on the generation of films and foams and measure (i) the quantity of water entrained and (ii) the stability of the systems. The surfactants we used are C12E6, β-C12G2 and their 1 : 1 mixture because those systems are very well characterised in the literature and are known to stabilise foams with very different properties. We show that the quantity of water uptake in foams and single vertical films scales in the same way with the velocity of generation. However, the different surfactant solutions have different foamabilities, whereas the films they stabilise have exactly the same thickness. Moreover, the foamability of a C12E6 solution is much lower than that of a β-C12G2 solution or of a solution of the 1 : 1 mixture. This is due to the rapid rupture of the C12E6 foam films during foam generation. Surprisingly, the isolated films have exactly the same lifetime for all the surfactant solutions. We conclude that, though drawing a correlation between films and foams is tempting, the results obtained do not allow correlating of film and foam stability during the generation process. The only difference we observed between the single films stabilised by the different solutions is the stability of their respective black films. We thus suggest that the stability of black films during foam generation plays an important role which should be explored further in future work.
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Affiliation(s)
- Laurie Saulnier
- Laboratoire de Physique des Solides, UMR 8502, Université Paris-Sud, Bâtiment 510, 91405 Orsay Cedex, France.
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22
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Mohd-Setapar SH, Mohamad-Aziz SN, Chuong CS, Che Yunus MA, Ahmad Zaini MA, Kamaruddin MJ. A REVIEW OF MIXED REVERSE MICELLE SYSTEM FOR ANTIBIOTIC RECOVERY. CHEM ENG COMMUN 2014. [DOI: 10.1080/00986445.2013.819799] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Padia FN, Yaseen M, Gore B, Rogers S, Bell G, Lu JR. Influence of Molecular Structure on the Size, Shape, and Nanostructure of Nonionic CnEm Surfactant Micelles. J Phys Chem B 2013; 118:179-88. [DOI: 10.1021/jp409808c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Faheem N. Padia
- Biological
Physics Laboratory, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, U.K
| | - Mohammed Yaseen
- Biological
Physics Laboratory, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, U.K
| | - Barbara Gore
- School
of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Sarah Rogers
- STFC
ISIS Facility, Rutherford Appleton Laboratory, Didcot OX11 0QX, U.K
| | - Gordon Bell
- Syngenta, Jealott’s
Hill International Research Centre, Bracknell, Berkshire RG42
6EY, U.K
| | - Jian R. Lu
- Biological
Physics Laboratory, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, U.K
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24
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Wang S, Xiong N, Dong XY, Sun Y. A novel nickel-chelated surfactant for affinity-based aqueous two-phase micellar extraction of histidine-rich protein. J Chromatogr A 2013; 1320:118-24. [DOI: 10.1016/j.chroma.2013.10.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 09/18/2013] [Accepted: 10/23/2013] [Indexed: 11/15/2022]
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25
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Boos J, Preisig N, Stubenrauch C. Dilational surface rheology studies of n-dodecyl-β-D-maltoside, hexaoxyethylene dodecyl ether, and their 1:1 mixture. Adv Colloid Interface Sci 2013; 197-198:108-17. [PMID: 23726302 DOI: 10.1016/j.cis.2013.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 04/27/2013] [Accepted: 05/01/2013] [Indexed: 10/26/2022]
Abstract
It is time to review latest activities on the dilational surface rheology of the two nonionic surfactants n-dodecyl-β-D-maltoside (β-C12G2) and hexaoxyethylene dodecyl ether (C12E6) and their 1:1 mixture as a lot of different data generated with different techniques have been published in the last years. As the data are scattered throughout different papers and were generated with different techniques, we carried out an extensive study with one technique, which we will use as reference for the discussion of different data sets. We found that the results are in most of the cases in line with already published data as regards the general trends. However, a quantitative comparison reveals differences, which may result in different interpretations of the data. In the review at hand, we summarize, compare and discuss our latest and previously published data.
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26
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Yan C, Angus-Smyth A, Bain CD. Adsorption kinetics of non-ionic surfactants in micellar solutions: effects of added charge. Faraday Discuss 2013; 160:45-61; discussion 103-20. [DOI: 10.1039/c2fd20118f] [Citation(s) in RCA: 9] [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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27
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Hierrezuelo JM, Ruiz CC. Rotational diffusion of coumarin 153 in nanoscopic micellar environments of n-dodecyl-β-D-maltoside and n-dodecyl-hexaethylene-glycol mixtures. J Phys Chem A 2012; 116:12476-85. [PMID: 23214482 DOI: 10.1021/jp308379j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The microstructure of mixed micelles containing n-dodecyl-β-D-maltoside and n-dodecyl-hexaethylene-glycol, two nonionic surfactants belonging to the alkyl polyglucoside and polyoxyethyelene alkyl ether families, respectively, has been investigated. With the aim of understanding how the micellar composition affects the microenvironmental properties of micelles, we have examined the photophysics and dynamics of the neutral probe coumarin 153 in the binary mixtures of the surfactants across the entire composition range. We present data on the steady-state absorption and emission spectra of the probe, as well as fluorescence lifetimes and both steady-state and time-resolved fluorescence anisotropies. These data indicate that the participation of the ethoxylated surfactant in the mixed micelle induces an increasing hydration in the palisade layer of the micelle, which forces the probe to migrate toward the inner micellar region, where it senses a slightly less polar environment. The time-resolved fluorescence anisotropy data were analyzed on the basis of the two-step and wobbling-in-cone model. The average reorientation time of the probe molecule was found to decrease with the presence of the ethoxylated surfactant, in good agreement with steady-state fluorescence anisotropy data, suggesting a reduction of the microviscosity in the solubilization site of the probe. The behavior of all diffusion reorientation parameters was analyzed on the basis of two factors: the micellar hydration and the headgroup flexibility of both surfactants. It was concluded that the increasing participation of the ethoxylated surfactant induces a greater hydration in the micellar palisade layer, producing the formation of a less compact microenvironment where the probe experiences a faster rotational reorientation.
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Affiliation(s)
- J M Hierrezuelo
- Departamento de Física Aplicada II, Escuela de Ingenierías, Universidad de Málaga, Málaga, Spain
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Boos J, Drenckhan W, Stubenrauch C. Protocol for Studying Aqueous Foams Stabilized by Surfactant Mixtures. J SURFACTANTS DETERG 2012. [DOI: 10.1007/s11743-012-1416-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Boos J, Drenckhan W, Stubenrauch C. On how surfactant depletion during foam generation influences foam properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:9303-9310. [PMID: 22694021 DOI: 10.1021/la301140z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Although it is known that foaming a surfactant solution results in a depletion of the surfactant in the bulk phase, this effect is often overlooked and has never been quantified. Therefore, the influence of surfactant depletion on foam properties using solutions of the two nonionic surfactants, n-dodecyl-β-D-maltoside (β-C(12)G(2)) and hexaethyleneglycol monododecyl ether (C(12)E(6)), were investigated. These investigations were conducted in two steps. First, different foam volumes were generated with the same surfactant solution at a concentration of c = 2 cmc. It was found that the higher the foam volume, the larger the surfactant depletion. Second, two different bulk concentrations (c = 2 and 1.33 cmc) were used for the generation of 50 and 110 mL of foam, respectively. For a foam volume of 50 mL, no differences were observed, whereas generating 110 mL led to different results. The surfactant loss in the bulk solution was measured via surface tension measurements and then compared to the results of purely geometric considerations that take into account the amount of interface created in the foam. Both results were in very good agreement, which means that surfactant depletion can be calculated in the way suggested here. Under conditions where depletion plays a role, our approach can also be used to estimate the bubble size of a foam of known volume by measuring the surfactant concentration in the bulk solution after foaming.
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Affiliation(s)
- Julia Boos
- Universität Stuttgart, Institut für Physikalische Chemie, Pfaffenwaldring 55, 70569 Stuttgart, Germany
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Novel ethoxylated inositol derivatives – Hybrid carbohydrate/oligoethylene oxide surfactants. J Colloid Interface Sci 2012; 371:82-8. [DOI: 10.1016/j.jcis.2011.12.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 12/17/2011] [Accepted: 12/19/2011] [Indexed: 11/17/2022]
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31
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Carnero Ruiz C. Rotational dynamics of coumarin 153 in non-ionic mixed micelles of n-octyl-β-d-thioglucoside and Triton X-100. Photochem Photobiol Sci 2012; 11:1331-8. [DOI: 10.1039/c2pp25049g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Mucic N, Javadi A, Kovalchuk N, Aksenenko E, Miller R. Dynamics of interfacial layers-experimental feasibilities of adsorption kinetics and dilational rheology. Adv Colloid Interface Sci 2011; 168:167-78. [PMID: 21798491 DOI: 10.1016/j.cis.2011.06.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Revised: 06/03/2011] [Accepted: 06/10/2011] [Indexed: 10/17/2022]
Abstract
Each experimental method has a certain range of application, and so do the instruments for measuring dynamic interfacial tension and dilational rheology. While the capillary pressure tensiometry provides data for the shortest adsorption times starting from milliseconds at liquid/gas and tens of milliseconds at liquid/liquid interfaces, the drop profile tensiometry allows measurements in a time window from seconds to many hours. Although both methods together cover a time range of about eight orders of magnitude (10(-3) s to 10(5) s), not all surfactants can be investigated with these techniques in the required concentration range. The same is true for studies of the dilational rheology. While drop profile tensiometry allows oscillations between 10(-3) Hz and 0.2 Hz, which can be complemented by measurements with capillary pressure oscillating drops and the capillary wave damping method (up to 10(3) Hz) these six orders of magnitude in frequency are often insufficient for a complete characterization of interfacial dilational relaxations of surfactant adsorption layers. The presented analysis provides a guide to select the most suitable experimental method for a given surfactant to be studied. The analysis is based on a diffusion controlled adsorption kinetics and a Langmuir adsorption model.
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Characterization of mixed non-ionic surfactants n-octyl-β-d-thioglucoside and octaethylene–glycol monododecyl ether: Micellization and microstructure. J Colloid Interface Sci 2011; 361:178-85. [DOI: 10.1016/j.jcis.2011.05.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Revised: 05/06/2011] [Accepted: 05/06/2011] [Indexed: 11/22/2022]
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Ivanova D, Angarska Z, Karakashev S, Manev E. Drainage of foam films stabilized by n-dodecyl-β-d-maltoside or dodecyl trimethylammonium bromide and their mixtures. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.01.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dash U, Misra PK. Organization of amphiphiles. J Colloid Interface Sci 2011; 357:407-18. [DOI: 10.1016/j.jcis.2011.01.087] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 01/22/2011] [Accepted: 01/25/2011] [Indexed: 11/16/2022]
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Catanoiu G, Carey E, Patil SR, Engelskirchen S, Stubenrauch C. Partition coefficients of nonionic surfactants in water/n-alkane systems. J Colloid Interface Sci 2011; 355:150-6. [PMID: 21193201 DOI: 10.1016/j.jcis.2010.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2010] [Revised: 11/30/2010] [Accepted: 12/01/2010] [Indexed: 11/17/2022]
Affiliation(s)
- G Catanoiu
- Universität Stuttgart, Institut für Physikalische Chemie, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
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Molina-Bolívar J, Ruiz CC. Light scattering and fluorescence studies of non-ionic surfactant binary mixtures formed by MEGA-10 and C12E8. J Mol Liq 2010. [DOI: 10.1016/j.molliq.2010.05.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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38
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Foaming properties of mixtures of a non-ionic (C12DMPO) and an ionic surfactant (C12TAB). J Colloid Interface Sci 2010; 346:414-23. [DOI: 10.1016/j.jcis.2010.03.013] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Revised: 02/25/2010] [Accepted: 03/07/2010] [Indexed: 11/19/2022]
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Mixtures of n-dodecyl-beta-D-maltoside and hexaoxyethylene dodecyl ether--surface properties, bulk properties, foam films, and foams. Adv Colloid Interface Sci 2010; 155:5-18. [PMID: 20080225 DOI: 10.1016/j.cis.2009.12.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Accepted: 12/20/2009] [Indexed: 11/23/2022]
Abstract
Mixtures of the two non-ionic surfactants hexaoxyethylene dodecyl ether (C(12)E(6)) and n-dodecyl-beta-D-maltoside (beta-C(12)G(2)) were studied with regard to surface properties, bulk properties, foam films, and foams. The reason for studying a mixture of an ethylene oxide (C(i)E(j)) and a sugar (C(n)G(m)) based surfactant is that despite being non-ionic, these two surfactants behave quite differently. Firstly, the physico-chemical properties of aqueous solutions of C(n)G(m) surfactants are less temperature-sensitive than those of C(i)E(j) solutions. Secondly, the surface charge density q(0) of foam films stabilized by C(n)G(m) surfactants is pH insensitive down to the so-called isoelectric point, while that of foam films stabilized by C(i)E(j) surfactants changes linearly with the pH. The third difference is related to interaction forces between solid surfaces. Under equilibrium conditions very high forces are needed to expel beta-C(12)G(2) from between thiolated gold surfaces, while for C(12)E(6) low loads are sufficient. Fourthly, the adsorption of C(12)E(6) and beta-C(12)G(2) on hydrophilic silica and titania, respectively, is inverted. While the surface excess of C(12)E(6) is large on silica and negligible on titania, beta-C(12)G(2) adsorbs very little on silica but has a large surface excess on titania. What is the reason for this different behaviour? Under similar conditions and for comparable head group sizes, it was found that the hydration of C(i)E(j) surfactants is one order of magnitude higher but on average much weaker than that of C(n)G(m) surfactants. Moreover, C(n)G(m) surfactants possess a rigid maltoside unit, while C(i)E(j) surfactants have a very flexible hydrophilic part. Indeed, most of the different properties mentioned above can be explained by the different hydration and the head group flexibilities. The intriguing question of how mixtures of C(i)E(j) and C(n)G(m) surfactants would behave arises organically. Thus various properties of C(12)E(6)+beta-C(12)G(2) mixtures in aqueous solution have been studied with a focus on the 1:1 mixture. The results are compared with those of the single surfactants and are discussed accordingly.
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Carey E, Stubenrauch C. A disjoining pressure study of foam films stabilized by mixtures of a nonionic (C12DMPO) and an ionic surfactant (C12TAB). J Colloid Interface Sci 2010; 343:314-23. [DOI: 10.1016/j.jcis.2009.11.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 09/18/2009] [Accepted: 11/11/2009] [Indexed: 10/20/2022]
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Carey E, Stubenrauch C. Properties of aqueous foams stabilized by dodecyltrimethylammonium bromide. J Colloid Interface Sci 2009; 333:619-27. [DOI: 10.1016/j.jcis.2009.02.038] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2008] [Revised: 02/09/2009] [Accepted: 02/10/2009] [Indexed: 10/21/2022]
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