Bibliographies thématiques / Reentrant condensation

Littérature scientifique sur le sujet « Reentrant condensation »

Auteur : Grafiati

Publié le 10 mars 2023

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Articles de revues sur le sujet "Reentrant condensation"

Truzzolillo, Domenico, Simona Sennato, Stefano Sarti, Stefano Casciardi, Chiara Bazzoni et Federico Bordi. « Overcharging and reentrant condensation of thermoresponsive ionic microgels ». Soft Matter 14, n^o 20 (2018) : 4110–25. http://dx.doi.org/10.1039/c7sm02357j.

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We investigated the complexation of thermoresponsive anionic poly(N-isopropylacrylamide) (PNiPAM) microgels and cationic ε-polylysine chains. We show that the volume phase transition of the microgels triggers polyion adsorption and gives rise to a thermosensitive microgel overcharging and reentrant condensation.

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Nguyen, T. T., I. Rouzina et B. I. Shklovskii. « Reentrant condensation of DNA induced by multivalent counterions ». Journal of Chemical Physics 112, n^o 5 (février 2000) : 2562–68. http://dx.doi.org/10.1063/1.480819.

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Zhang, Fajun, Felix Roosen-Runge, Andrea Sauter, Marcell Wolf, Robert M. J. Jacobs et Frank Schreiber. « Reentrant condensation, liquid–liquid phase separation and crystallization in protein solutions induced by multivalent metal ions ». Pure and Applied Chemistry 86, n^o 2 (1 février 2014) : 191–202. http://dx.doi.org/10.1515/pac-2014-5002.

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Abstract We briefly summarize the recent progress in tuning protein interactions as well as phase behavior in protein solutions using multivalent metal ions. We focus on the influence of control parameters and the mechanism of reentrant condensation, the metastable liquid–liquid phase separation and classical vs. non-classical pathways of protein crystallization.

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Daga, Bijoy. « Reentrant condensation transition in a two species driven diffusive system ». Physica A : Statistical Mechanics and its Applications 477 (juillet 2017) : 1–8. http://dx.doi.org/10.1016/j.physa.2017.02.021.

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Sennato, S., F. Bordi, C. Cametti, M. Diociaiuti et P. Malaspina. « Charge patch attraction and reentrant condensation in DNA–liposome complexes ». Biochimica et Biophysica Acta (BBA) - Biomembranes 1714, n^o 1 (août 2005) : 11–24. http://dx.doi.org/10.1016/j.bbamem.2005.06.004.

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Sennato, S., D. Truzzolillo, F. Bordi et C. Cametti. « Effect of Temperature on the Reentrant Condensation in Polyelectrolyte−Liposome Complexation ». Langmuir 24, n^o 21 (4 novembre 2008) : 12181–88. http://dx.doi.org/10.1021/la8021563.

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Sennato, S., F. Bordi et C. Cametti. « On the phase diagram of reentrant condensation in polyelectrolyte-liposome complexation ». Journal of Chemical Physics 121, n^o 10 (8 septembre 2004) : 4936–40. http://dx.doi.org/10.1063/1.1781112.

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Alshareedah, Ibraheem, et Priya R. Banerjee. « Sequence-Encoded Interactions Modulate Reentrant Liquid Condensation of Ribonucleoprotein-RNA Mixtures ». Biophysical Journal 118, n^o 3 (février 2020) : 372a. http://dx.doi.org/10.1016/j.bpj.2019.11.2129.

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Lenton, Samuel, Stefan Hervø-Hansen, Anton M. Popov, Mark D. Tully, Mikael Lund et Marie Skepö. « Impact of Arginine–Phosphate Interactions on the Reentrant Condensation of Disordered Proteins ». Biomacromolecules 22, n^o 4 (18 mars 2021) : 1532–44. http://dx.doi.org/10.1021/acs.biomac.0c01765.

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Zhang, Minmin, et Serge G. Lemay. « Interaction of Anionic Bulk Nanobubbles with Cationic Liposomes : Evidence for Reentrant Condensation ». Langmuir 35, n^o 11 (27 février 2019) : 4146–51. http://dx.doi.org/10.1021/acs.langmuir.8b03927.

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Thèses sur le sujet "Reentrant condensation"

Lee, Se Il. « Statistical thermodynamics of virus assembly ». Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33900.

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Experiments show that MgSO4 salt has a non-monotonic effect as a function of MgSO4 concentration on the ejection of DNA from bacteriophage lambda. There is a concentration, N0, at which the minimum amount of DNA is ejected. At lower or higher concentrations, more DNA is ejected. We propose that this non-monotonic behavior is due to the overcharging of DNA at high concentration of Mg⁺² counterions. As the Mg⁺² concentration increases from zero, the net charge of ejected DNA changes its sign from negative to positive. N0 corresponds to the concentration at which DNA is neutral. Our theory fits experimental data well. The DNA-DNA electrostatic attraction is found to be -0.004 kBT/nucleotide. Simulations of DNA-DNA interaction of a hexagonal DNA bundle support our theory. They also show the non-monotonic DNA-DNA interaction and reentrant behavior of DNA condensation by divalent counterions. Three problems in understanding the capsid assembly for a retrovirus are studied: First, the way in which the viral membrane affects the structure of in vivo assembled HIV-1 capsid is studied. We show that conical and cylindrical capsids have similar energy at high surface tension of the viral membrane, which leads to the various shapes of HIV-1 capsids. Secondly, the problem of RNA genome packaging inside spherical viruses is studied using RNA condensation theory. For weak adsorption strength of capsid protein, most RNA genomes are located at the center of the capsid. For strong adsorption strength, RNA genomes peak near the capsid surface and the amount of RNA packaged is proportional to the capsid area instead its volume. Theory fits experimental data reasonably well. Thirdly, the condensation of RNA molecules by nucleocapsid (NC) protein is studied. The interaction between RNA molecules and NC proteins is important for the reverse transcription of viral RNA which relates to the viral infectivity. For strong adsorption strength of the NC protein, there is a screening effect by RNA molecules around a single NC protein.

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Fogli, Silvia. « Glycoconjugated dyes : dye removal and evidence of self-assembly in solution through spectrophotometric and scattering techniques ». Doctoral thesis, 2019. http://hdl.handle.net/2158/1164209.

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The present work focus on the characterization of five glycoconjugated dyes. These molecules are a class of compounds synthesized conjugating a unit of lactose to specifically modified disperse chromophores. The presence of lactose enhances the water solubility of these molecules, and also makes these compounds amphiphiles. The amphiphilicity allows the self-assembly of glycoconjugated dyes in solution. The behavior of these molecules in solution was studied experimentally using a variety of techniques, including UV-Visible spectroscopy, Dynamic Light Scattering (DLS) and Small Angle X-Rays Scattering (SAXS). Moreover, using a combination of SAXS and Electronic Circular Dichroism (ECD) the shape of the objects in solution could be determined. The influence on aggregates formation and behavior in solution of some parameters, such as the solvent, the interaction with surfactants and with other glycoconjugated dyes was also studied using the same techniques. A computational study of glycoconjugated dyes was performed using Force Fields. Computational tools allowed to determine the preferential conformations assumed by these molecules as monomers and dimers. Since glycoconjugated dyes have been designed for leather and textile dyeing, an additional preliminary study on the end of the life cycle for glycoconjugated dyes was carried out using two different dye removal approaches. The first approach could be intended as a possible alternative or a support for the classical methods and involved a white rot fungus, Funalia trogii, as microorganism for dye removal. This approach was tested on glycoconjugated dyes simulated effluents. The second approach was the classical one, involving activated sludge, and was carried out on glycoconjugated dyes real leather dyeing effluents.

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