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Koumakis N, Devailly C, Poon WCK. Motile bacteria in a critical fluid mixture. Phys Rev E 2018; 97:062604. [PMID: 30011513 DOI: 10.1103/physreve.97.062604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Indexed: 11/07/2022]
Abstract
We studied the swimming of Escherichia coli bacteria in the vicinity of the critical point in a solution of the nonionic surfactant C_{12}E_{5} in buffer solution. In phase-contrast microscopy, each swimming cell produces a transient trail behind itself lasting several seconds. Comparing quantitative image analysis with simulations show that these trails are due to local phase reorganization triggered by differential adsorption. This contrasts with similar trails seen in bacteria swimming in liquid crystals, which are due to shear effects. We show how our trails are controlled, and use them to probe the structure and dynamics of critical fluctuations in the fluid medium.
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Affiliation(s)
- Nick Koumakis
- SUPA and School of Physics & Astronomy, The University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh EH9 3FD, Scotland, United Kingdom
| | - Clémence Devailly
- SUPA and School of Physics & Astronomy, The University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh EH9 3FD, Scotland, United Kingdom
| | - Wilson C K Poon
- SUPA and School of Physics & Astronomy, The University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh EH9 3FD, Scotland, United Kingdom
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2
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Lesemann M, Martin A, Belkoura L, Woermann D, Hoinkis E. Static light scattering and small angle neutron scattering experiments with a nonionic surfactant/deuterium oxide system approaching the liquid/liquid coexistence curve: Study of the system C12E5/D2O. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19971010210] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Zielesny A, Belkoura L, Woermann D. Static light scattering experiments with non-ionic surfactant/water mixtures of critical composition. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19940980408] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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4
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Topp A, Belkoura L, Woermann D. Dynamic Light Scattering Experiments with Aqueous Solutions of Polyelectrolytes of Low Charge Density Along the Polymer Chain in the Presence of Salt. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19950990506] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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5
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Lesemann M, Belkoura L, Woermann D. Small Angle Neutron Scattering Experiments with Aqueous Solutions of the Nonionic Surfactant C12E5 with Critical and Noncritical Composition. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19950990502] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Schröer W, Wiegand S, Weingärtner H. The Effect of Short-Range Hydrogen-Bonded Interactions on the Nature of the Critical Point of Ionic Fluids. Part II: Static and Dynamic Light Scattering on Solutions of Ethylammonium Nitrate in n-Octanol. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19930970805] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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7
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López-Esparza R, Guedeau-Boudeville MA, Gambin Y, Rodríguez-Beas C, Maldonado A, Urbach W. Interaction between poly(ethylene glycol) and two surfactants investigated by diffusion coefficient measurements. J Colloid Interface Sci 2006; 300:105-10. [PMID: 16678840 DOI: 10.1016/j.jcis.2006.03.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2005] [Revised: 03/25/2006] [Accepted: 03/28/2006] [Indexed: 11/26/2022]
Abstract
Dynamic light scattering (DLS) and fluorescence recovery after pattern photobleaching (FRAPP) were used to study the interaction of low molecular weight poly(ethylene glycol) (PEG) with micelles of two different surfactants: tetradecyldimethyl aminoxide (C(14)DMAO, zwitterionic) and pentaethylene glycol n-dodecyl monoether (C(12)E(5), non-ionic). By using an amphiphilic fluorescent probe or a fluorescent-labeled PEG molecule, FRAPP experiments allowed to follow the diffusion of the surfactant-polymer complex either by looking at the micelle diffusion or at the polymer diffusion. Experiments performed with both fluorescent probes gave the same diffusion coefficient showing that the micelles and the polymer form a complex in dilute solutions. Similar experiments showed that PEG interacts as well with pentaethylene glycol n-dodecyl monoether (C(12)E(5)).
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Affiliation(s)
- R López-Esparza
- Laboratoire de Physique Statistique, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, France.
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Hernández MP, Ortega F, Rubio RG. Crossover critical phenomena in an aqueous electrolyte solution: Light scattering, density and viscosity of the 3-methylpyridine+water+NaBr system. J Chem Phys 2003. [DOI: 10.1063/1.1594179] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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9
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Wiener MC. Existing and emergent roles for surfactants in the three-dimensional crystallization of integral membrane proteins. Curr Opin Colloid Interface Sci 2001. [DOI: 10.1016/s1359-0294(01)00107-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Campostrini M, Pelissetto A, Rossi P, Vicari E. Improved high-temperature expansion and critical equation of state of three-dimensional Ising-like systems. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1999; 60:3526-63. [PMID: 11970188 DOI: 10.1103/physreve.60.3526] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/1999] [Indexed: 04/18/2023]
Abstract
High-temperature series are computed for a generalized three-dimensional Ising model with arbitrary potential. Three specific "improved" potentials (suppressing leading scaling corrections) are selected by Monte Carlo computation. Critical exponents are extracted from high-temperature series specialized to improved potentials, achieving high accuracy; our best estimates are gamma=1.2371(4), nu=0.630 02(23), alpha=0.1099(7), eta=0.0364(4), beta=0.326 48(18). By the same technique, the coefficients of the small-field expansion for the effective potential (Helmholtz free energy) are computed. These results are applied to the construction of parametric representations of the critical equation of state. A systematic approximation scheme, based on a global stationarity condition, is introduced (the lowest-order approximation reproduces the linear parametric model). This scheme is used for an accurate determination of universal ratios of amplitudes. A comparison with other theoretical and experimental determinations of universal quantities is presented.
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Affiliation(s)
- M Campostrini
- Dipartimento di Fisica dell'Università di Pisa and INFN, I-56126 Pisa, Italy.
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11
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Blote HWJ, Luijten E, Heringa JR. Ising universality in three dimensions: a Monte Carlo study. ACTA ACUST UNITED AC 1999. [DOI: 10.1088/0305-4470/28/22/007] [Citation(s) in RCA: 257] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Marczuk P, Lang P, Huang HN. Phase Behavior and Scattering Experiments of an Oligo(ethylene oxide)−n-Perfluorooctyl Ether/Water System. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp960249w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- P. Marczuk
- Iwan-N.-Stranski-Institute, TU Berlin, Strasse des 17. Juni 112, 10623 Berlin, Germany
| | - P. Lang
- Iwan-N.-Stranski-Institute, TU Berlin, Strasse des 17. Juni 112, 10623 Berlin, Germany
| | - Hsu-Nan Huang
- Dupont Jackson Laboratory, Deepwater, New Jersey 08023
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Martín A, Lesemann M, Belkoura L, Woermann D. Slowing Down of the Mutual Diffusion Process Approaching the Liquid/Liquid Coexistence Curve of a Nonionic Surfactant/Deuterium Oxide System: Study of the System C12E5/D2O. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp960585c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana Martín
- Institut für Physikalische Chemie, Universität Köln, Luxemburger Strasse 116, D-50939 Köln, Germany
| | - Markus Lesemann
- Institut für Physikalische Chemie, Universität Köln, Luxemburger Strasse 116, D-50939 Köln, Germany
| | - Lhoussaine Belkoura
- Institut für Physikalische Chemie, Universität Köln, Luxemburger Strasse 116, D-50939 Köln, Germany
| | - Dietrich Woermann
- Institut für Physikalische Chemie, Universität Köln, Luxemburger Strasse 116, D-50939 Köln, Germany
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Feitosa E, Brown W, Hansson P. Interactions between the Non-ionic Surfactant C12E5 and Poly(ethylene oxide) Studied Using Dynamic Light Scattering and Fluorescence Quenching. Macromolecules 1996. [DOI: 10.1021/ma950516g] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eloi Feitosa
- Department of Physical Chemistry, University of Uppsala, Box 532, 751 21 Uppsala, Sweden
| | - Wyn Brown
- Department of Physical Chemistry, University of Uppsala, Box 532, 751 21 Uppsala, Sweden
| | - Per Hansson
- Department of Physical Chemistry, University of Uppsala, Box 532, 751 21 Uppsala, Sweden
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Lesemann M, Zielesny A, Belkoura L, Woermann D. Diffusivity in a non‐ionic surfactant/water mixture of critical composition. J Chem Phys 1995. [DOI: 10.1063/1.469417] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Optical studies of liquid interfaces in amphiphilic systems: how wetting and adsorption are modified by surfactant aggregation. Adv Colloid Interface Sci 1993. [DOI: 10.1016/0001-8686(93)80025-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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