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Ben Abdelouahab N, Gossard A, Marlière C, Faure P, Rodts S, Coussot P. Controlled imbibition in a porous medium from a soft wet material (poultice). Soft Matter 2019; 15:6732-6741. [PMID: 31397468 DOI: 10.1039/c9sm01345h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We provide a first approach of the mechanisms of liquid imbibition in a porous medium from a wet paste in contact with this substrate. Through Magnetic Resonance Imaging (MRI) we first show that, in contrast with intuition, the liquid can invade the substrate even if it has a larger pore size than the paste, which induces a lower capillary pressure in the substrate. This phenomenon happens because the paste can easily shrink. We then show that the imbibition stops when the capillary pressure in the substrate balances the stress needed to further contract the paste. The dynamics of the process then mainly results from the competition of these two effects plus the pressure gradient associated with the liquid flow through the paste. This in particular shows that the liquid penetration in a porous medium, from a poultice in contact with this medium, may be controlled by adjusting the poultice characteristics.
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Affiliation(s)
- N Ben Abdelouahab
- Univ. Paris-Est, Laboratoire Navier (ENPC-IFSTTAR-CNRS), 77420, Champs sur Marne, France.
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Al Salloum H, Saunier J, Dazzi A, Vigneron J, Etcheberry A, Marlière C, Aymes-Chodur C, Herry JM, Bernard M, Jubeli E, Yagoubi N. Characterization of the surface physico-chemistry of plasticized PVC used in blood bag and infusion tubing. Mater Sci Eng C Mater Biol Appl 2017; 75:317-334. [PMID: 28415468 DOI: 10.1016/j.msec.2017.02.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/28/2016] [Accepted: 02/14/2017] [Indexed: 10/20/2022]
Abstract
Commercial infusion tubing and blood storage devices (tubing, blood and platelets bags) made of plasticized PVC were analyzed by spectroscopic, chromatographic and microscopic techniques in order to identify and quantify the additives added to the polymer (lubricants, thermal stabilizers, plasticizers) and to put into evidence their blooming onto the surface of the devices. For all the samples, deposits were observed on the surface but with different kinds of morphologies. Ethylene bis amide lubricant and metallic stearate stabilizers were implicated in the formation of these layers. In contact with aqueous media, these insoluble deposits were damaged, suggesting a possible particulate contamination of the infused solutions.
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Affiliation(s)
- H Al Salloum
- IFR 141, EA 401, UFR de Pharmacie, Univ. Paris Sud - Université Paris-Saclay, 92290 Chatenay Malabry, France
| | - J Saunier
- IFR 141, EA 401, UFR de Pharmacie, Univ. Paris Sud - Université Paris-Saclay, 92290 Chatenay Malabry, France.
| | - A Dazzi
- LCP, CNRS-UMR8000, Univ. Paris-Sud, Université Paris-Saclay, 91405 Orsay, France
| | - J Vigneron
- ILV, CNRS, UVSQ, Université Paris-Saclay, 45 Avenue des Etats Unis, 78035 Versailles, France
| | - A Etcheberry
- ILV, CNRS, UVSQ, Université Paris-Saclay, 45 Avenue des Etats Unis, 78035 Versailles, France
| | - C Marlière
- ISMO, UMR CNRS 8214, Univ. Paris Sud, Université Paris-Saclay, 91405 Orsay cedex, France
| | - C Aymes-Chodur
- IFR 141, EA 401, UFR de Pharmacie, Univ. Paris Sud - Université Paris-Saclay, 92290 Chatenay Malabry, France
| | - J M Herry
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - M Bernard
- IFR 141, EA 401, UFR de Pharmacie, Univ. Paris Sud - Université Paris-Saclay, 92290 Chatenay Malabry, France
| | - E Jubeli
- IFR 141, EA 401, UFR de Pharmacie, Univ. Paris Sud - Université Paris-Saclay, 92290 Chatenay Malabry, France
| | - N Yagoubi
- IFR 141, EA 401, UFR de Pharmacie, Univ. Paris Sud - Université Paris-Saclay, 92290 Chatenay Malabry, France
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Affiliation(s)
- Claire Marlière
- Laboratoire Navier, Université Paris-Est; Champs sur Marne France
| | - Paméla Faure
- Laboratoire Navier, Université Paris-Est; Champs sur Marne France
| | - Philippe Coussot
- Laboratoire Navier, Université Paris-Est; Champs sur Marne France
| | - Dimitris Vlassopoulos
- Institute of Electronic Structure and Laser, FORTH; Heraklion Crete Greece
- Dept. of Materials Science and Technology; University of Crete; Heraklion Crete Greece
| | - Antje Larsen
- Institute of Electronic Structure and Laser, FORTH; Heraklion Crete Greece
| | - Benoit Loppinet
- Institute of Electronic Structure and Laser, FORTH; Heraklion Crete Greece
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Monteux C, Marlière C, Paris P, Pantoustier N, Sanson N, Perrin P. Poly(N-isopropylacrylamide) microgels at the oil-water interface: interfacial properties as a function of temperature. Langmuir 2010; 26:13839-46. [PMID: 20681739 DOI: 10.1021/la1019982] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Highly monodisperse poly(N-isopropylacrylamide), PNiPAM, microgels were prepared by the conventional radical polymerization of NiPAM in the presence of dimethylamino ethyl methacrylate (DMAEMA) monomers at various concentrations. The effect of DMAEMA on the polymerization of PNiPAM microgels was examined at constant initiator (V50) and cross-linker (MBA) concentrations. The presence of DMAEMA in the synthesis batch allows for the preparation of PNiPAM microgels with controlled size and a narrow size distribution. The oil(dodecane)/water interfacial properties of the model PNiPAM microgels were then investigated. The pendant drop technique was used to measure the interfacial tensions as a function of temperature. Over the whole range of temperature (20-45 degrees C), the interfacial tension remains low (on the order of 17 mN/m) and goes through a minimum (12 mN/m) at a temperature of about 34 degrees C, which well matches the volume phase transition temperature (VPTT) of PNiPAM microgels. Below the VPTT, the decrease in the interfacial tension with temperature is likely to be due to the adsorption of dense layers because of the decrease of the excluded volume interactions. Above the VPTT, we suggest that the increase in the interfacial tension with temperature comes from the adsorption of loosely packed PNiPAM microgels. We also studied the effect of temperature on the stability of emulsions. Dodecane in water emulsions, which form at ambient temperature, are destabilized as the temperature exceeds the VPTT. In light of the interfacial tension results, we suggest that emulsion destabilization arises from the adsorption of aggregates above the VPTT and not from an important desorption of microgels. Aggregate adsorption would bring a sufficiently high number of dodecane molecules into contact with water to induce coalescence without changing the interfacial tension very much.
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Affiliation(s)
- Cécile Monteux
- Laboratoire de Physico-Chimie des Polymères et Milieux Dispersés, UMR7615 UPMC-ESPCI-CNRS, Ecole Supérieure de Physique et de Chimie Industrielles ESPCI, 10 rue Vauquelin, 75231 Paris, Cedex 05, France.
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Grimaldi A, George M, Pallares G, Marlière C, Ciccotti M. The crack tip: a nanolab for studying confined liquids. Phys Rev Lett 2008; 100:165505. [PMID: 18518217 DOI: 10.1103/physrevlett.100.165505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2007] [Indexed: 05/26/2023]
Abstract
We study the equilibrium properties of a liquid phase condensed at the nanoscale between the surfaces of a sharp crack in fused silica in a moist controlled atmosphere. The extension of the condensed phase along the fracture is measured by in situ atomic force microscopy phase imaging and it is shown to be determined by a critical distance between the opposite crack surfaces, which is an increasing function of humidity. The present technique is very promising for measuring the properties of confined liquids at the nanoscale as well as for modeling the physics and chemistry of slow crack propagation in glasses.
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Affiliation(s)
- A Grimaldi
- Laboratoire des Colloïdes, Verres et Nanomatériaux, Université Montpellier 2, CNRS, Montpellier, France
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Célarié F, Prades S, Bonamy D, Ferrero L, Bouchaud E, Guillot C, Marlière C. Glass breaks like metal, but at the nanometer scale. Phys Rev Lett 2003; 90:075504. [PMID: 12633243 DOI: 10.1103/physrevlett.90.075504] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2002] [Indexed: 05/24/2023]
Abstract
We report in situ atomic force microscopy experiments which reveal the presence of nanoscale damage cavities ahead of a stress-corrosion crack tip in glass. Their presence might explain the departure from linear elasticity observed in the vicinity of a crack tip in glass. Such a ductile fracture mechanism, widely observed in the case of metallic materials at the micrometer scale, might be also at the origin of the striking similarity of the morphologies of fracture surfaces of glass and metallic alloys at different length scales.
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Affiliation(s)
- F Célarié
- Laboratoire des Verres, UMR CNRS-UM2 5587, Université Montpellier 2, C.C. 69 Place Bataillon, F-34095 Montpellier Cedex 5, France
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Safarov VI, Kosobukin VA, Hermann C, Lampel G, Peretti J, Marlière C. Magneto-optical Effects Enhanced by Surface Plasmons in Metallic Multilayer Films. Phys Rev Lett 1994; 73:3584-3587. [PMID: 10057420 DOI: 10.1103/physrevlett.73.3584] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lassailly Y, Drouhin H, Lampel G, Marlière C. Spin-dependent transmission of low-energy electrons through ultrathin magnetic layers. Phys Rev B Condens Matter 1994; 50:13054-13057. [PMID: 9975490 DOI: 10.1103/physrevb.50.13054] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Pizzini S, Baudelet F, Fontaine A, Galtier M, Renard D, Marlière C. Structure of Co/Cu multilayers studied by x-ray diffraction and x-ray absorption spectroscopy. Phys Rev B Condens Matter 1993; 47:8754-8762. [PMID: 10004920 DOI: 10.1103/physrevb.47.8754] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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