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Academic literature on the topic 'Électrophorèse capillaire'
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Journal articles on the topic "Électrophorèse capillaire"
Maréchal, V. "Électrophorèse capillaire." EMC - Biologie médicale 2, no. 3 (January 2007): 1–3. http://dx.doi.org/10.1016/s2211-9698(07)71383-3.
Full textCotton, F., F. Vertongen, and B. Gulbis. "Électrophorèse capillaire et hémoglobinopathies." Immuno-analyse & Biologie Spécialisée 21, no. 1 (February 2006): 45–50. http://dx.doi.org/10.1016/j.immbio.2005.11.002.
Full textDesbène-Monvernay, A., and N. Mofaddel. "Électrophorèse capillaire en milieu non aqueux." Analusis 27, no. 2 (March 1999): 144–50. http://dx.doi.org/10.1051/analusis:1999270144.
Full textMofaddel, N., and A. Desbènes-Monvernay. "L'analyse des acides gras en électrophorèse capillaire." Analusis 27, no. 2 (March 1999): 120–24. http://dx.doi.org/10.1051/analusis:1999270120.
Full textMorin, P. "Améliorations récentes dans l'analyse des ions par électrophorèse capillaire." Analusis 27, no. 2 (March 1999): 107–19. http://dx.doi.org/10.1051/analusis:1999270107.
Full textGrandjean, F., M. P. Rodenbach, F. Legros, V. Nuyens, J. M. Cirriez, F. de l'Escaille, and P. Vankerkhoven. "Analyse de la CDT par électrophorèse capillaire: comparaison de deux analyseurs." Immuno-analyse & Biologie Spécialisée 22, no. 5 (October 2007): 325–28. http://dx.doi.org/10.1016/j.immbio.2007.08.003.
Full textSaulnier, F., M. Calco, G. Humbert, and G. Linden. "Composition minérale et organique de différents lactosérums acides industriels, analysée par électrophorèse capillaire." Le Lait 76, no. 5 (1996): 423–32. http://dx.doi.org/10.1051/lait:1996532.
Full textForay, V., and C. Chapuis-Cellier. "Dépistage des variants génétiques de l'alpha-1-antitrypsine par électrophorèse capillaire sur Paragon® CZE 2000." Immuno-analyse & Biologie Spécialisée 19, no. 2 (April 2004): 117–20. http://dx.doi.org/10.1016/j.immbio.2003.12.011.
Full textKintz, P., P. Houzé, and F. Aknouche. "Exposition pédiatrique au méthanol : identification des ions formates par électrophorèse capillaire dans une couche et conséquences judiciaires." Toxicologie Analytique et Clinique 28, no. 2 (June 2016): S14. http://dx.doi.org/10.1016/j.toxac.2016.03.020.
Full textLabat, Laurence, Philippe Dallet, Marc Deveaux, and Jean-Pierre Dubost. "Étude du comportement analytique de la mirtazapine en chromatographie liquide haute performance et électrophorèse capillaire de zone." Annales de Toxicologie Analytique 13, no. 2 (2001): 104–12. http://dx.doi.org/10.1051/ata/2001001.
Full textDissertations / Theses on the topic "Électrophorèse capillaire"
Nehme, Hala. "Etude des réactions enzymatiques par électrophorèse capillaire." Thesis, Orléans, 2013. http://www.theses.fr/2013ORLE2041.
Full textEnzymes catalyze all enzymatic reactions. Their deregulation can be involved in several severe diseases. The study of these reactions is important to detect anomalies, to better understand enzyme functioning and to seek modulators of their activity. This thesis presents capillary electrophoresis based enzymatic assays developed to study kinetics of various enzymes. The pre-capillary mode in which the enzymatic reaction occurs outside the capillary and the incapillary plug-plug mode of homogenous assays where the reaction is performed inside the capillary are applied. The methods developed are optimized to ensure optimum reactant mixing and a good electrophoretic separation. The kinetic and inhibition constants (Vmax, Km and IC50) of the enzymatic reaction are determined by these assays and compared to the results obtained using conventional techniques. For in-capillary assays, several mixing types (by application of an electric field, by longitudinal diffusion or transverse diffusion) of the reactant plugs are used depending on the enzymatic system studied. Finally, up to four reactants injected successively in the capillary are successfully mixed. Many assays are performed on complex matrices (cells, plant extracts). Screening of referenced and synthesized inhibitors on several human kinases: CDK1/cyclin B, CDK5/p25, DYRK1A, GSK3!, PI3K, Akt and mTOR are performed. Developed assays proved to be quantitative, simple, economic, fast and robust
Nehmé, Reine. "Etude des greffages non-covalents de capillaires pour l'analyse des peptides et des protéines en électrophorèse capillaire." Montpellier 1, 2008. http://www.theses.fr/2008MON13519.
Full textMario, Nathalie. "Etude qualitative et quantitative des hémoglobines par électrophorèse capillaire." Paris 5, 1997. http://www.theses.fr/1997PA05P632.
Full textRic, Audrey Marie Amélie. "Caractérisation d'aptamères par électrophorèse capillaire couplée au séquençage haut-débit Illumina." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30388/document.
Full textAptamers are oligomers of small single-stranded DNA or RNA which can have strong and specific interactions with some targets when they fold into three-dimensional structures. The objective of this thesis was to complete existing studies on the use of capillary electrophoresis in order to develop a method for the selection of aptamers by CE coupled to laser induced fluorescence and Illumina high-throughput sequencing. In a first step, we developed a method of detection and separation by capillary electrophoresis coupled with the double detection UV-LEDIF of a DNA library interacting with a target: thrombin. It is a model already studied and for which two aptamers have been published. We used aptamer T29 as part of our study because it has the best affinity. Capillary Electrophoresis is a powerful analytical tool that facilitates the selection efficiency of aptamers and specifies the determination of the interaction parameters. We thus were able to determine the affinity constant KD by CE-UV-LEDIF on the basic model: thrombin. Moreover, we also show how the use of Tris buffer can degrade single-stranded DNA during capillary electrophoresis and we propose as an alternative the use of a dibasic sodium phosphate buffer which avoids the phenomenon of degradation. Finally, we explain the difficulty of amplification by qPCR and PCR of an aptamer such as T29 with a G-quadruplex structure. We showed that the Illumina high-throughput sequencing allowed us to find a correlation between the number of sequenced molecules and the number of sequences obtained. Analysis of the sequences obtained shows a significant amount (20%) of T29 sequences which do not correspond to the sequence of this aptamer. This shows that the PCR and high-throughput sequencing steps for the detection of G-quadruplex can induce bias in the identification of these molecules
Blanco, Stéphane. "Mécanismes de séparation des protéines par électrophorèse. Modélisation et analyse de sensibilité." Toulouse 3, 1996. http://www.theses.fr/1996TOU30326.
Full textMarie, Anne-Lise. "Electrophorèse capillaire couplée ou non à la spectrométrie de masse pour l’évaluation ou le contrôle qualité de protéines à visée thérapeutique." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS044/document.
Full textDuring this Ph.D., we developed analytical methods in order to check the quality of therapeutic proteins as finished products or to assess the potential of some proteins to be drug candidates. Two proteins were studied : human serum albumin (HSA) and antithrombin (AT). These proteins are very different regarding their structure, glycosylation, and biological functions. A capillary zone electrophoresis (CZE) method enabled to separate nine forms in commercial preparations of HSA issued from human plasma, among which native, cysteinylated, glycated, and truncated forms. Another CZE method allowed separating more than eight forms in commercial preparations of AT issued from human plasma, among which native, latent, and heterodimeric forms. Both CZE methods enabled to highlight significant differences in the composition of marketed preparations produced by five competitive pharmaceutical companies. Capillary electrophoresis-mass spectrometry (CE-MS) methods, using a quadrupole-time of flight (Q-TOF) analyzer and electrospray ionization (ESI), were also developed. These CE-MS methods enabled to identify not only a high number of glycoforms and related forms of AT, but also dimeric forms. A CE-MS method developed in non-denaturing conditions showed that native and latent forms of AT (two conformers) exhibited a specific mass spectrum, allowing to unambiguously distinguish them. With the aim to assess the binding affinity of AT variants toward heparin, we developed an affinity capillary electrophoresis (ACE) method. This ACE method enabled to analyze AT variants directly from the cell culture supernatants used to produce them. It has been shown that some AT variants had a very high affinity for heparin, in good agreement with the performed mutations. Finally, a new method based on Taylor Dispersion Analysis (TDA) was investigated to study the affinity between AT issued from plasma and heparin
Nouadje, Georges. "Electrophorèse capillaire et détection colinéaire de fluorescence induite par laser." Toulouse 3, 1996. http://www.theses.fr/1996TOU30054.
Full textOuadah, Nesrine. "Caractérisation de chlorhydrates d’aluminium et étude de leurs interactions avec des protéines par électrophorèse capillaire." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS007.
Full textAluminum chlorohydrates (ACH) are used by the cosmetics industry as antiperspirant active ingredients to limit sweating. Their mechanism of action, is still poorly understood. The development of new characterization tools to improve the understanding of their antiperspirant action at the molecular level is therefore crucial, to ultimately optimize their use, or even to replace them with other active compounds. The purposed of this work, was to characterize by a new analytical approach the oligomers contained in ACH and to study their interactions with model proteins. In a first part, a method was developed by capillary electrophoresis zone (CZE) for the separation, characterization and quantitative analysis of ACH oligomers (in particular Al13 and Al30). The choice of counter-ion, ionic strength and capillary coating was crucial for the success of the separation, the stability of the species during the electrophoretic process and the repeatability / reproducibility of the separation. The optimization of the separation conditions has made it possible to the separation of other oligomeric and colloidal species of aluminum, and to set up an on-line coupling of CZE to Taylor dispersion. analysis (TDA). Capillary isotachophoresis (ITP) was also explored for ACH analysis at high concentrations, close to those used in antiperspirant formulations. It was shown that it is possible to analyze samples up to 40 g / L in ACH. Finally, interactions of ACH with model proteins (BSA and lysozyme) were studied by capillary affinity electrophoresis (ACE) to shed more light on the phenomena of complexation leading to the obstruction of the sweat duct. The electrolyte used in ACE consists solely of ligands (ACH), at relatively high concentrations (up to 50 g / L), in order to mimic the conditions of application. From an analytical point of view, the challenge of this work was to correct the electrophoretic mobilities of the proteins from the experimental parameters varying with the concentration ACH (Joule heating, viscosity, state of charge of the protein as a function of the pH, ionic strength). It was possible to quantitatively demonstrate differences in the interactions between ACH and the two studied model proteins (BSA and lysozyme)
Renard, Charly. "Nouvelles approches pour la quantification et la réduction de l’adsorption de biomolécules en électrophorèse capillaire : capillaires superhydrophobes et multicouches de polyélectrolytes." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS013.
Full textThe main objective of this thesis is to study different approaches for the modification of the electrophoresis capillary intern wall to enhance separation efficiency and reproducibility for biomolecules (model peptides and/or proteins) in acidic conditions. The first chapter (outside of bibliographic study) is dedicated to superhydrophobic coatings study. The goal is to prevent analytes adsorption by suppressing any interaction between the superhydrophobic wall and the analytes (anti-wettability). An original coating process has been developed to obtain superhydrophobic capillaries by studying the influence of layers number, coating nature, and filling and flushing pressure during layers deposition. Superhydrophobic coatings have been obtained, for the first time, with diameters from 50 µm to 180 µm. Hydrodynamic and electrokinetic characteristics have been studied, giving slipping length of 23 µm and efficiency separation increased twofold compared to fused silica capillary in the same electrophoretic conditions. The second chapter studies an air microbubbles generation process using superhydrophobic capillaries. The experimental parameters (voltage, UV ray, marker, superhydrophobic coating) needed to obtain those bubbles have been identified. Those bubbles have been characterized (diameter ~35-39 µm; length ~10 mm; zeta potential ~ -62.6 mV). The third chapter offer an experimental methodology, based on the electrochromatography theory, allowing to evaluate the residual adsorption of proteins on the capillary wall. This approach have two interesting points: (i) allowing to compare separative performances of different coatings via residual adsorption, and (ii) optimizing the experimental parameters (length, internal diameter, applied voltage) to minimize the impact of adsorption on the separation efficiencies
Danel, Cécile. "Séparation des énantiomères d'inhibiteurs potentiels de l'aromatase par chromatographie liquide haute performance et électrophorèse capillaire." Lille 2, 2003. http://www.theses.fr/2003LIL2P014.
Full textBooks on the topic "Électrophorèse capillaire"
Patrick, Camilleri, ed. Capillary electrophoresis: Theory and practice. Boca Raton: CRC Press, 1993.
Find full textG, Righetti P., ed. Capillary electrophoresis in analytical biotechnology. Boca Raton: CRC Press, 1996.
Find full textRoberto, Rodriguez-Diaz, and Zhu Mingde, eds. Capillary electrophoresis of proteins. New York: M. Dekker, 1999.
Find full text1973-, Rathore Anurag S., and Guttman András, eds. Electrokinetic phenomena: Principles and applications in analytical chemistry and microchip technology. New York: Marcel Dekker, 2004.
Find full textvan, Eeckhaut Ann, and Michotte Yvette, eds. Chiral separations by capillary electrophoresis. Boca Raton: Taylor & Francis, 2009.
Find full textY, Aboul-Enein Hassan, ed. Analytical and preparative separation methods of biomacromolecules. New York: Marcel Dekker, 1999.
Find full textCamilleri, Patrick. Capillary Electrophoresis: Theory and Practice, Second Edition (New Directions in Organic and Biological Chemistry Series). 2nd ed. CRC, 1997.
Find full textCamilleri, Patrick. Capillary Electrophoresis: Theory and Practice (New Directions in Organic and Biological Chemistry). CRC Press, 1993.
Find full textLanders, James P. Handbook of Capillary and Microchip Electrophoresis and Associated Microtechniques. Taylor & Francis Group, 2007.
Find full textLanders, James P. Handbook of Capillary and Microchip Electrophoresis and Associated Microtechniques. Taylor & Francis Group, 2020.
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