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Onoda K, Nanzai B. Periodic Expansion and Contraction Phenomena in a Pendant Droplet Associated with Marangoni Effect. MATERIALS (BASEL, SWITZERLAND) 2021; 15:239. [PMID: 35009390 PMCID: PMC8745923 DOI: 10.3390/ma15010239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/27/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
A spontaneous oscillation between the expansion and contraction of a nitrobenzene pendant droplet containing di-(2-ethylhexyl)phosphoric acid (DEHPA) was observed in an aqueous phase under alkaline conditions. We described this phenomenon as the spontaneous oscillation of the oil-water interfacial tension. The oscillation characteristics such as the induction period and the interfacial-tension oscillation frequency were investigated under different temperatures and aqueous phase polarities. The effects of the interfacial tension of the biphasic pendant-droplet, the surface excess of the surfactant molecules, and the amount of nitrobenzene elution from the droplet to the aqueous phase on the oscillation characteristics were investigated. Consequently, the periodic expansion-contraction oscillation mechanism was explained through the adsorption-desorption cycle of DEHPA with respect to the aggregate formation of the inverted micelle of DEHPA. This study was based on a simple vibration phenomenon of interfacial tension, and is extremely important for clarifying the predominant factors that cause fluctuations in the free interface energy, which has been ambiguous.
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Physico-chemical and Spectroscopic Approach to Analyse the Behaviour of Surface-Active Ionic Liquid and Conventional Surfactant in Aqueous Glycine. J SURFACTANTS DETERG 2017. [DOI: 10.1007/s11743-017-1993-1] [Citation(s) in RCA: 4] [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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Nanzai B, Terashita D, Igawa M. Effect of Interfacial Curvature on Marangoni Instability at Water–Oil Interface. CHEM LETT 2015. [DOI: 10.1246/cl.150734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ben Nanzai
- Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University
| | - Daisuke Terashita
- Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University
| | - Manabu Igawa
- Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University
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Abstract
AbstractThree particular systems are considered where transfer of a surfactant across the interface between two immiscible liquids, water and oil, is accompanied by spontaneous oscillations of relaxation type with an abrupt decrease of interfacial tension followed by its gradual increase. These oscillations cannot be explained in the frameworks of linear stability analysis, because they are related to essentially non-linear effects. The oscillations characteristics depend on the properties of a surfactant (interfacial activity, solubility, partition coefficient, density difference between the surfactant solution and pure solvent), other solutes present in one or both liquid phases, and, usually, also on the system geometry. If the transferred surfactant is an ionic one, then, the oscillations of interfacial tension are synchronised with the oscillations of electric potential across the interface. The available hypothesis about oscillations mechanism are discussed, in particular, the model proposed recently for oscillations due to Marangoni instability by surfactant transfer from a point source located in one of the liquid bulk phases.
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Antoine C, Pimienta V. Mass-spring model of a self-pulsating drop. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:14935-14946. [PMID: 24200165 DOI: 10.1021/la403678r] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Self-pulsating sessile drops are a striking example of the richness of far-from-equilibrium liquid/liquid systems. The complex dynamics of such systems is still not fully understood, and simple models are required to grasp the mechanisms at stake. In this article, we present a simple mass-spring mechanical model of the highly regular drop pulsations observed in Pimienta, V.; Brost, M.; Kovalchuk, N.; Bresch, S.; Steinbock, O. Complex shapes and dynamics of dissolving drops of dichloromethane. Angew. Chem., Int. Ed. 2011, 50, 10728-10731. We introduce an effective time-dependent spreading coefficient that sums up all of the forces (due to evaporation, solubilization, surfactant transfer, coffee ring effect, solutal and thermal Marangoni flows, drop elasticity, etc.) that pull or push the edge of a dichloromethane liquid lens, and we show how to account for the periodic rim breakup. The model is examined and compared against experimental observations. The spreading parts of the pulsations are very rapid and cannot be explained by a constant positive spreading coefficient or superspreading.
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Affiliation(s)
- Charles Antoine
- Laboratoire de Physique Théorique de la Matière Condensée, Université Pierre et Marie Curie , 4 place Jussieu, 75005 Paris, France
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Miyaoka T, Nishimura J, Iida Y, Maki S, Shioi A. Ion-selective Marangoni instability--chemical sensing of specific cation for macroscopic movement. CHAOS (WOODBURY, N.Y.) 2012; 22:037111. [PMID: 23020502 DOI: 10.1063/1.4729142] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Spontaneous motion and tension oscillation of an oil/water interface responding to specific cation Ca(2+) or Fe(3+) were observed when the oil phase containing the anionic surfactant bis(2-ethylhexyl) phosphate came in contact with the cation-containing water. Both the dynamics were the results of Marangoni instability. Complex formation between the anionic surfactant and cation caused the instability. The results showing the level of cation extraction and degree of interfacial tension revealed that the surfactant-cation combination forms an oil-soluble complex with reduced surface activity. Brewster angle microscopy indicated that molecules of the complex tend to aggregate at the interface. This aggregation affected the desorption rate of the complex. We were able to generate ion-selective instability by imposing mechanical and electrochemical perturbations to the interface at equilibrium. The results from these efforts suggested that the aggregation is a type of thermodynamic transition and is required for the onset of instability: Desorption probably occurs as an exfoliation of the aggregated complex, which generates the gradient of interfacial tension. For the standard experiment of biphasic contact, two neighboring interfacial flows compress the local interface between them. We considered that this compression provides mechanical work to the local interface, resulting in desorption of the aggregates and occurrence of instability. Both complex formation and aggregation are possible in the presence of the specific cation. The interface detects the cation via the chemical and thermodynamic processes in order to develop the macroscopic movement, a form of biomimetic motion of the oil/water interface.
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Affiliation(s)
- Tetsuya Miyaoka
- Department of Chemical Engineering & Materials Science, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0321, Japan
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Kovalchuk NM, Pimienta V, Tadmouri R, Miller R, Vollhardt D. Ionic strength and pH as control parameters for spontaneous surface oscillations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:6893-6901. [PMID: 22480181 DOI: 10.1021/la3006025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A system far from equilibrium, where the surfactant transfer from a small drop located in the aqueous bulk to the air-water interface results in spontaneous nonlinear oscillations of surface tension, is theoretically and experimentally considered. The oscillations in this system are the result of periodically arising and terminating Marangoni instability. The surfactant under consideration is octanoic acid, the dissociated form of which is much less surface-active than the protonated form. Numerical simulations show how the system behavior can be controlled by changes in pH and ionic strength of the aqueous phase. The results of numerical simulations are in good agreement with experimental data.
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Kitazumi Y, Kakiuchi T. Electrochemical Instability in Liquid–Liquid Two-Phase Systems. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20110217] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hosohama T, Megumi K, Terakawa S, Nishimura J, Iida Y, Ban T, Shioi A. Ion-selective Marangoni instability coupled with the nonlinear adsorption/desorption rate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:14131-14142. [PMID: 22017536 DOI: 10.1021/la203145f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An oil/water interface containing bis(2-ethylhexyl)phosphate and Ca(2+) or Fe(3+) exhibits spontaneous Marangoni instability associated with the fluctuation in interfacial tension. This instability rarely appears for oil/water systems with Mg(2+), Sr(2+), Ba(2+), Cu(2+), or Co(2+). The same ion selectivity is observed for n-heptane and nitrobenzene despite their significant differences in density, viscosity, and the dielectric constant of oil. We studied this instability under acidic pH conditions to avoid the neutralization reaction effects. The result of the equilibrium interfacial tension and the extraction ratio of cations indicates that a large number of oil-soluble complexes form at the interfaces of Ca(2+)-containing systems and probably for Fe(3+)-containing systems. The results obtained by oscillating drop tensiometry and Brewster angle microscopy indicate that desorption, rather than adsorption, is more significant to the onset of instability and that the resulting complex tends to form aggregates in the interface. This aggregation gives the nonlinear desorption rate of the oil-soluble complex. Then, exfoliation of the aggregating matter occurs, which triggers the Marangoni instability. The induced convection removes the oil-soluble complex accumulated at the interface, creating a renewed interface, which is necessary for the successive occurrence of the Marangoni instability. For the other cations, the oil-soluble compounds are insignificant, and they rarely form aggregates. In such cases, adsorption/desorption proceeds without instability.
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Affiliation(s)
- Tsugihiko Hosohama
- Department of Chemical Engineering & Materials Science, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0321, Japan
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Adsorption of alkyl trimethylammonium bromides at the water/air and water/hexane interfaces. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.08.052] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tadmouri R, Kovalchuk N, Pimienta V, Vollhardt D, Micheau JC. Transfer of oxyethylated alcohols through water/heptane interface: Transition from non-oscillatory to oscillatory behaviour. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2009.07.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tadmouri R, Zedde C, Routaboul C, Micheau JC, Pimienta V. Partition and Water/Oil Adsorption of Some Surfactants. J Phys Chem B 2008; 112:12318-25. [DOI: 10.1021/jp804674y] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rawad Tadmouri
- Laboratoire des IMRCP, UMR au CNRS N° 5623, Service Commun d’HPLC, FR 2599, and Service Commun de Spectroscopie IR et Raman, FR 2599, Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex, France
| | - Chantal Zedde
- Laboratoire des IMRCP, UMR au CNRS N° 5623, Service Commun d’HPLC, FR 2599, and Service Commun de Spectroscopie IR et Raman, FR 2599, Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex, France
| | - Corinne Routaboul
- Laboratoire des IMRCP, UMR au CNRS N° 5623, Service Commun d’HPLC, FR 2599, and Service Commun de Spectroscopie IR et Raman, FR 2599, Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex, France
| | - Jean-Claude Micheau
- Laboratoire des IMRCP, UMR au CNRS N° 5623, Service Commun d’HPLC, FR 2599, and Service Commun de Spectroscopie IR et Raman, FR 2599, Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex, France
| | - Véronique Pimienta
- Laboratoire des IMRCP, UMR au CNRS N° 5623, Service Commun d’HPLC, FR 2599, and Service Commun de Spectroscopie IR et Raman, FR 2599, Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex, France
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Sczech R, Eckert K, Acker M. Convective Instability in a Liquid−Liquid System Due to Complexation with a Crown Ether. J Phys Chem A 2008; 112:7357-64. [DOI: 10.1021/jp803011b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ronny Sczech
- Institute of Aerospace Engineering, Technical University Dresden, Dresden, Germany
| | - Kerstin Eckert
- Institute of Aerospace Engineering, Technical University Dresden, Dresden, Germany
| | - Margret Acker
- Institute of Aerospace Engineering, Technical University Dresden, Dresden, Germany
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