Relevant bibliographies by topics / Bicontinuous phases

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Bicontinuous phases'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Bicontinuous phases"

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Pieranski, P. "Topological defects in bicontinuous phases." EPL (Europhysics Letters) 81, no. 6 (February 22, 2008): 66001. http://dx.doi.org/10.1209/0295-5075/81/66001.

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Pieruschka, P., and S. Marčelja. "Statistical mechanics of random bicontinuous phases." Journal de Physique II 2, no. 2 (February 1992): 235–47. http://dx.doi.org/10.1051/jp2:1992127.

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Deem, Michael W., and David Chandler. "Charge-frustrated model of bicontinuous phases." Physical Review E 49, no. 5 (May 1, 1994): 4268–75. http://dx.doi.org/10.1103/physreve.49.4268.

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Deem, Michael W., and David Chandler. "Formation of interfaces in bicontinuous phases." Physical Review E 49, no. 5 (May 1, 1994): 4276–86. http://dx.doi.org/10.1103/physreve.49.4276.

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Tyler, Arwen I. I., Hanna M. G. Barriga, Edward S. Parsons, Nicola L. C. McCarthy, Oscar Ces, Robert V. Law, John M. Seddon, and Nicholas J. Brooks. "Electrostatic swelling of bicontinuous cubic lipid phases." Soft Matter 11, no. 16 (2015): 3279–86. http://dx.doi.org/10.1039/c5sm00311c.

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We have constructed swollen bicontinuous cubic lipid phases from monoglyceride, anionic lipid and cholesterol. These self-assembled systems have lattice parameters of almost 50 nm, over 4 times larger than archetypal lipid cubic phases.
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Anderson, David M., and Haakan Wennerstroem. "Self-diffusion in bicontinuous cubic phases, L3 phases, and microemulsions." Journal of Physical Chemistry 94, no. 24 (November 1990): 8683–94. http://dx.doi.org/10.1021/j100387a012.

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Clerc, M., and E. Dubois-Violette. "X-ray scattering by bicontinuous cubic phases." Journal de Physique II 4, no. 2 (February 1994): 275–86. http://dx.doi.org/10.1051/jp2:1994128.

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Speziale, Chiara, Reza Ghanbari, and Raffaele Mezzenga. "Rheology of Ultraswollen Bicontinuous Lipidic Cubic Phases." Langmuir 34, no. 17 (April 12, 2018): 5052–59. http://dx.doi.org/10.1021/acs.langmuir.8b00737.

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Zhai, Jiali, Sampa Sarkar, Charlotte E. Conn, and Calum J. Drummond. "Molecular engineering of super-swollen inverse bicontinuous cubic and sponge lipid phases for biomedical applications." Molecular Systems Design & Engineering 5, no. 8 (2020): 1354–75. http://dx.doi.org/10.1039/d0me00076k.

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Kluzek, Monika, Arwen I. I. Tyler, Shiqi Wang, Rongjun Chen, Carlos M. Marques, Fabrice Thalmann, John M. Seddon, and Marc Schmutz. "Influence of a pH-sensitive polymer on the structure of monoolein cubosomes." Soft Matter 13, no. 41 (2017): 7571–77. http://dx.doi.org/10.1039/c7sm01620d.

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Dissertations / Theses on the topic "Bicontinuous phases"

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Flook, Kelly Joanne. "The suitability of polymerised microemulsions as stationary phases for capillary electrochromatography." Thesis, Durham University, 2003. http://etheses.dur.ac.uk/4109/.

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Capillary electrochromatography (CEC) is an analytical separation technique, coupling the electroosmotic flow principles of capillary electrophoresis (CE) with the stationary phase separation principles of high performance liquid chromatography (HPLC). The development of this technique has been slowed due to technical problems with packing capillary columns. Alteration of the stationary phase to a solid monolithic support enables ease of filling and reduces bubble formation. Polymerisation of bicontinuous microemulsions can yield porous structures that are potentially suitable for use as a stationary phase for this technique. Polymerising bicontinuous microemulsions with different compositions produce monoliths of varying pore sizes. The microemulsions consist of a hydrophobic phase and an aqueous phase. The hydrophobic phase is typically methyl or butyl methacrylate, and a cross-linker, ethylene glycol dimethacrylate. The aqueous phase consists of water and a surfactant, typically sodium dodecyl sulfate. A short chain alcohol (C3-C5) is added as a porogen which also acts as a co-surfactant to aid with the stabilisation of the microemulsion. AMPS (2-acrylamido-2-methyl-l-propane sulfonic acid), added to the aqueous phase provides a charge along the polymer backbone essential for electroosmotic flow mechanism in electrochromatography. SEM analysis shows that polymerisation in-situ yields a structure with a porous topography. Materials prepared were assessed for suitability with a variety of microemulsion compositions.
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Nishikawa, Yukihiro. "Interface Curvatures of Bicontinuous Phase-structures in Two-component Polymeric Systems." Kyoto University, 2000. http://hdl.handle.net/2433/181348.

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Choi, Sung-Min 1965. "A SANS study of the interfacial curvatures and the phase behavior in bicontinuous microemulsions." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50069.

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Testard, Vincent. "Etude par simulations numériques de l'influence de la transition vitreuse sur la séparation de phase liquide-gaz." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20014/document.

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Nous réalisons des simulations numériques de décompositions spinodales en dessous de la température de transition vitreuse. Nous étudions l'influence de cette transition sur la séparation de phase liquide-gaz. Ces études ont été motivées pour expliquer un mécanisme de formation de gels à partir de systèmes colloïdaux ayant un potentiel d'attraction à courte portée (systèmes colloïdes/polymères non-adsorbant) mis en évidence lors de récentes expériences mais dont les raisons étaient floues. Nos résultats confirment que la structure des gels est induite par la décomposition spinodale, tandis que l'arrêt de la dynamique due à la transition vitreuse fige le système en une structure bicontinue et empêche la séparation de phase d'arriver à terme. Une étude complète (diagramme des phases, structure, distribution des longueurs, distribution des densités, longueurs caractéristiques, taille des clusters, mécanisme d'évolution) de ces systèmes en fonction du temps, de la température et de la densité est réalisée
We realize a numerical study of spinodal decomposition under glass transition. We study the influence of glass transition on liquid-gaz phase separation. Our motivation was to explain a gel formation mecanisim of colloidal systems with short range interaction (colloid/non-adsorbing polymer system) shown in recent experiments. Their authors suggested a mecanisim taht we corroborate in this thesis. Our results confirm that gel structure is shaped by spinodal decomposition, and then glass transition slow dynamics until system get pinned in a bicontinuous structure in one hand, and avoid complete liquid-gas separation in other hand. A complete study (phase diagram, structure, length distributions, density distributions, typical lengths, cluster size, evolution mecanisim) of those systems is done in function of time, temperature and density
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Kostela, Johan. "Electrochemical Studies of Redox Properties and Diffusion in Self-Assembled Systems." Doctoral thesis, Uppsala University, Department of Physical Chemistry, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4613.

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In this thesis electron transfer reactions and diffusion of redox molecules in three different types of self-aggregated structures are investigated. Electrochemistry was used to investigate the redox potential and diffusion coefficients for redox active molecules with different polarity. The first aggregate system studied was the micellar phase. The role of electrostatic interactions in the stability of an amphiphilic viologen was investigated for differently charged micelles. It was concluded that the electrostatic environment changed the redox potential of the viologen. In differently charged micelles the redox potential was more negative compared to when the viologen was situated in micelles with the same charge.

The second structure investigated is a very fascinating phase, the bicontinuous cubic phase, with its continuous channels of water and an apolar bilayer. Its domains with different polarity made it possible to solvate both hydrophilic and hydrophobic molecules. An amphiphilic molecule will have its head-group at the interface between the apolar and polar part, and can move lateral within the bilayer. All molecules investigated made contact with and reacted at the surface of the electrode. The diffusion of water bound species diffusing in the water channels was 3-4 times slower than in water. Hydrophobic and amphiphilic molecules were much more hindered, probably because the cubic phase was not defect free.

The third kind of structure studied was a lamellar system. This phase is built up from planar bilayers that are stacked with a repeating distance and with water in between. A hydrophilic molecule was severely hindered to move in the direction perpendicular to the bilayer plane. Upon addition of the peptide melittin the current increased, due to pore formation in the bilayer.

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Håkansson, Pär. "Simulation of Relaxation Processes in Fluorescence, EPR and NMR Spectroscopy." Doctoral thesis, Umeå universitet, Kemi, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-244.

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Relaxation models are developed using numerical solutions of the Stochastic Liouville Equation of motion. Simplified descriptions such as the stochastic master equation is described in the context of fluorescence depolarisation experiments. Redfield theory is used in order to describe NMR relaxation in bicontinuous phases. The stochastic fluctuations in the relaxation models are accounted for using Brownian Dynamics simulation technique. A novel approach to quantitatively analyse fluorescence depolarisation experiments and to determine intramolecular distances is presented. A new Brownian Dynamics simulation technique is developed in order to characterize translational diffusion along the water lipid interface of bicontinuous cubic phases.
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Barnes, Ian. "Microstructure of bicontinuous phases in surfactant systems." Phd thesis, 1990. http://hdl.handle.net/1885/49316.

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A geometric approach to microemulsions and other phases in surfactant systems is presented. The basic premise is that the behaviour of these systems is dominated by geometric constraints on microstructure. The utility of this approach is first demonstrated for the one-dimensional fluid, for which the statistical mechanics can be solved analytically, before being applied to more realistic but complex systems. Small-angle X-ray and neutron scattering techniques are used to obtain structural information. A numerical method for calculating theoretical scattering curves from arbitrary models is presented. The importance of the real-space correlation function is emphasised, and it is used to obtain a plot of the scale dependence of the internal surface. A new technique is proposed for the division of two spectra from the same sample measured at different contrasts, which eliminates the underlying lattice and gives sensitive local information. Two new geometric models for microemulsions are presented: a structure of interconnected cylinders and one of folded connected lamellae. It is shown that these models succeed where all others fail, in explaining the behaviour of the isotropic liquid phases found in ternary systems containing the double-chained cationic surfactant didodecyldimethylammonium bromide. This approach is also applied to two nonionic polyoxyethylene surfactant binary systems. Similar methods are also applied to cubic liquid crystalline phases. It is shown by a simple calculation that the scattering from such structures is very sensitive to small changes. Certain of these structures are thought to follow periodic minimal surfaces. Approximations to these are investigated and in particular it is shown that periodic equipotential surfaces and periodic minimal surfaces with the same symmetry and topology are not necessarily identical.
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Kuo, Chun-Yin, and 郭純因. "Study of microporous membranes with bicontinuous structure by nonsolvent induced phase separation." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/65590825912969915944.

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博士
中原大學
化學工程研究所
96
The main purpose of this dissertation is to study how to prepare microporous membranes with bicontinuous structure and to interpret the mechanism of membrane formation by nonsolvent induced phase separation methods, which focused on absorption of water vapor to induce phase separation (VIPS) and wet immersion precipitation with alcohol as coagulant. In addition, the effects of surface morphologies on the surface hydrophobicity of membranes were discussed. In the VIPS process, 15wt% (polysulfone)PSf/NMP polymer solution was used to study the phase separation mechanism by exposure it to humid air (70%RH, 25°C) at varying times. The results of FTIR-Microscopy, dynamic light scattering and the observation of membrane structure proved that the composition path of polymer solution on the top layer followed a decreasing trend. When the composition path can rapidly pass through metastable region and then entered into unstable region, and which indicates the phase separation mechanism of spinodal decomposition occurred, leading to the formation of the PSf membrane with bicontinuous structure. The VIPS method can be successfully applied in various polymer systems in preparing membranes with bicontinuous structure such as Poly(methyl methacrylate)(PMMA)/NMP, Poly (bisphenol A-co-4-nitrophtalic anhydride-co-1,3-phenylenediamine) (PEI)/NMP, Poly(bisphenol A carbonate) (PC)/NMP, Cellulose acetate (CA)/NMP (all 15wt% polymer solutions). The VIPS method was a feasibility method to prepare bicontinuous structures, but, the evolutions of the bicontinuous structures in various polymeric membranes were different. A forming surface liquid layer at the interface position of polymer solution/air during the VIPS processes would be related to the membrane morphologies in various polymer systems. The forming surface liquid layer was observed by optical microscopy and analyzed by water contact angle. In PSf or PEI system, the water contact angle decreased to 0°, it meant that the liquid layer was formed which accumulated water vapor on the top surface of casting film. The nonsolvent (water vapor) was delayed to transfer to interior, resulting phase separation transforming in nucleation and growth and as a result, the final morphology is cellular. On the other hand, as the mass transfer of nonsolvent was continued, spinodal decomposition can be maintained in the interior of casting film, and as a result, the final morphology was bicontinuous (such as PMMA or CA membrane). Based on the results of the VIPS method, microporous membrane with bicontinuous structures were further prepared by wet immersion precipitation with alcohol as coagulant. The 20wt% PMMA/1,4-dioxane polymer solution precipitated with n-propanol as nonsolvent was used to study the membrane formation. The formation mechanism of bicontinuous structure was similar with VIPS method. The composition path of PMMA polymer solution on the top layer also followed a decreasing trend. When the composition path can rapidly pass through metastable region and then entered into unstable region, the phase separation mechanism of spinodal decomposition occurred, and which leaded to the formation of the PMMA membrane with bicontinuous structure. The method also can apply in various 15wt% polymer solutions (PSf/NMP, Poly(vinylidene fluoride)PVDF/NMP, PEI/NMP, PMMA/NMP and CA/NMP) to successfully prepare microporous membranes with bicontinuous structures. The affinity between polymer and nonsolvent would be related to the evolutions of bicontinuous structure in various polymer systems. When the polymer and alcohol had higher affinity, the bicontinuous structure which formed in the earlier stage was not evolving with the immersion time in alcohol bath, due to the polymer rich phase was solidified rapidly (such as PSf or PEI). However, when the polymer and alcohol had lower affinity, the bicontinuous structure could evolve into dense during the immersion process (such as PMMA or CA system). In addition, the membranes with bicontinuous structure can enhance hydrophobicity, even to the degree of a superhydrophobic characteristic. A super-hydrophobic surface (water contact angle of about 150°) can be obtained by coating a film with polycarbonate, when suitable porous surface structure was formed after VIPS (although the water contact angle of a dense polycarbonate film was measured to be only about 70°). The process of mechanism of membrane formation to form hierarchical porous structure can be controlled. Membrane pores were formed after spinodal decomposition of the cast film, which generated the micron scale bicontinuous structures (first-tier). The polymer-poor phase would further develop into the pores. The polymer-rich phase would crystallize and precipitate forming the nano scale pore wall (second-tier).
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Books on the topic "Bicontinuous phases"

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Cates, M. Complex fluids: the physics of emulsions. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198789352.003.0010.

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These lectures start with the mean field theory for a symmetric binary fluid mixture, addressing interfacial tension, the stress tensor, and the equations of motion (Model H). We then consider the phase separation kinetics of such a mixture: coalescence, Ostwald ripening, its prevention by trapped species, coarsening of bicontinuous states, and the role of shear flow. The third topic addressed is the stabilization of emulsions by using surfactants to reduce or even eliminate the interfacial tension between phases; the physics of bending energy, which becomes relevant in the latter case, is then presented briefly. The final topic is the creation of long-lived metastable emulsions by adsorption of colloidal particles or nanoparticles at the fluid–fluid interface; alongside spherical droplets, these methods can be used to create a range of unconventional structures with potentially interesting properties that are only now being explored.
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Book chapters on the topic "Bicontinuous phases"

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Warr, Gregory G., and Chih-Ming Chen. "Steady Shear Behavior of Ternary Bicontinuous Cubic Phases." In ACS Symposium Series, 306–17. Washington, DC: American Chemical Society, 1994. http://dx.doi.org/10.1021/bk-1994-0578.ch022.

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Mascia, Leno. "In Situ-Generated Fillers: Bicontinuous Phase Nanocomposites." In Functional Fillers for Plastics, 469–89. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527629848.ch24.

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Leaver, Marc, and Michael Holmes. "Intermediate Phases." In Bicontinuous Liquid Crystals, 15–40. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.ch2.

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Hoath, Steven, and Lars Norl√âN. "Cubic Phases and Human Skin." In Bicontinuous Liquid Crystals, 41–58. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.ch3.

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S√ñDerman, Olle, and Bj√ñRn Lindman. "NMR Characterization of Cubic and Sponge Phases." In Bicontinuous Liquid Crystals, 213–41. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.ch8.

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Beck, R., and H. Hoffmann. "Novel L3 Phases and Their Macroscopic Properties." In Bicontinuous Liquid Crystals, 131–68. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.sec2.

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Landau, Ehud. "Applications of Lipidic Cubic Phases in Structural Biology." In Bicontinuous Liquid Crystals, 425–56. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.ch15.

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Razumas, Valdemaras. "Bicontinuous Cubic Phases of Lipids with Entrapped Proteins." In Bicontinuous Liquid Crystals, 169–212. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.ch7.

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Siegel, D. "The Relationship between Bicontinuous Inverted Cubic Phases and Membrane Fusion." In Bicontinuous Liquid Crystals, 59–98. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.ch4.

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Lee, Jaehwi, and Ian Kellaway. "The Controlled Release of Drugs from Cubic Phases of Glyceryl Monooleate." In Bicontinuous Liquid Crystals, 457–69. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027709.ch16.

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Conference papers on the topic "Bicontinuous phases"

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Gruner, Sol M. "Organic and inorganic bicontinuous phases." In 1996 Symposium on Smart Structures and Materials, edited by Andrew Crowson. SPIE, 1996. http://dx.doi.org/10.1117/12.232156.

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Chang, Jeong Ho, and Kyung Ja Kim. "Bicontinuous thermoresponsive L 3 -phase silica nanocomposites and their smart drug delivery applications." In Smart Materials, Nano-, and Micro-Smart Systems, edited by Dan V. Nicolau. SPIE, 2005. http://dx.doi.org/10.1117/12.581038.

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Chang, Jeong Ho, and Kyung Ja Kim. "Functional bone-mimetic scaffolds of bicontinuous, thermo-responsive L 3 -phase silica/hydroxyapatite nanocomposites." In Smart Materials, Nano- and Micro-Smart Systems, edited by Dan V. Nicolau. SPIE, 2006. http://dx.doi.org/10.1117/12.695985.

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Tan, Shurun, Chuan Xiong, and Leung Tsang. "Modeling snow anisotropy and backscattering co-polarization phase difference using bicontinuous media and numerical solutions of Maxwell equations." In IGARSS 2016 - 2016 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2016. http://dx.doi.org/10.1109/igarss.2016.7730374.

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Acosta, Edgar, and Rafael Perez. "The zipper self-assembly effect applied to naphthenic acid systems." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/nxye5522.

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Naphthenic acids (NAs) are naturally-occuring cylic and aromatic fatty acids found in a variety of crude oils. Naphthenic acids and their neutralized form, sodium naphthenates (NaN), have been identified as the main surface-active species present in bitumenous oils, controlling most of their interfacial behavior. Different from other fatty acids, that upon neutralization undergo phase inversion and experience ultralow IFT, naphthenic acids do not produce such ultralow interfacial tension. This presentation introduces a discussion about the possible reasons that explain this unusual behavior. Some of those reasons include the possibility of extremely hydrophilic and hydrophobic components in the NA + NaN mixture, similar to the behavior of hydrophilic and lipophilic linkers used in microemulsion formulations. It has been previously shown that mixtures of hydrophilic and lipophilic linkers do not produce microemulsions (and thus ultralow interfacial tensions), but that with addition of a small amount of a surfactant of intermediate hydrophobicity, they can self-assemble to produce large bicontinuous microemulsions. This idea is explored in this work to produce low to ultralow interfacial tensions with partially neutralized naphthenic acids in the presence of a model oil. The potential implications and applications of these findings are discussed.
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Wijarnprecha, Khakhanang, Philipp Fuhrmann, Christopher Gregson, Matt Sillick, Sopark Sonwai, and Derick Rousseau. "Temperature-dependent Microstructure and Rheology of Fat in Adipose Tissue in Pork, Beef and Lamb." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/urjw5726.

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Matching the texture of fat in plant-based meat alternatives requires an in-depth understanding of the structure and rheology of animal adipose tissue which, to-date, remains under-studied. We investigated the temperature-dependent microstructure and thermal properties of adipose tissue from pork, beef and lamb. Microstructural characterisation via electron, confocal and light microscopy showed that the back fats were structurally similar and consisted of fat dispersed in discrete units within a protein matrix akin to a closed cell foam. Differential scanning calorimetry showed distinct fat melting profiles in each of the tissues, which were ascribed to differences in fatty acid profile. Fat crystal organisation, melting and re-solidification signatures unique to each adipose tissue were found via X-ray diffraction and Raman spectroscopy. The dynamic rheological behaviour of the back fats was characterised via frequency and amplitude sweeps as well as texture analysis via puncture tests. At 20 °C, prior to heating, the small and large deformation properties of adipose tissue were dominated by the solid fat phase in the adipose cells. Upon heating to 80 °C, with the fat phase molten, the protein network underpinning the structure of the back fats conferred elastic behaviour to the tissues, and the now-molten oil partly leaked from the adipocytes into the surrounding interstitial space. Upon re-cooling, a bicontinuous network of fat crystals and protein contributed to back fat rheology. Large deformation rheology revealed animal species-specific differences in back fat rheology. Overall, we found that the temperature-dependent microstructure of adipose fat was intricately linked to the fat phase melting behaviour, and importantly, to its protein matrix at elevated temperatures. Such understanding is necessary to provide the required insights to effectively replicate the functionality of adipose tissue using plant-based materials.
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Reports on the topic "Bicontinuous phases"

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Voorhees, Peter, and Katsuyo Thornton. THE DYNAMICS OF COMPLEX TWO-PHASE MIXTURES DURING COARSENING: FROM DENDRITIC TO BICONTINUOUS MIXTURES. Office of Scientific and Technical Information (OSTI), July 2021. http://dx.doi.org/10.2172/1811311.

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