Academic literature on the topic 'Encapsulation de principes actifs'
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Journal articles on the topic "Encapsulation de principes actifs"
Imzil, L., and MK Elamrani. "Encapsulation de nouveaux β-bloquants dans des liposomes de la lécithine du jaune d’œuf. Relations entre la cinétique de libération et la structure chimique des principes actifs." Journal de Chimie Physique 94 (1997): 18–30. http://dx.doi.org/10.1051/jcp/1997940018.
Full textBlanchemain, Nicolas, Florence Siepmann, and Juergen Siepmann. "Implants pour la délivrance de principes actifs." médecine/sciences 33, no. 1 (January 2017): 32–38. http://dx.doi.org/10.1051/medsci/20173301006.
Full textBourges, J. L., E. Touchard, L. Kowalczuk, M. Berdugo, A. Thomas-Doyle, A. Bochot, A. Gomez, F. Azan, R. Gurny, and F. Behar-Cohen. "Dispositifs de délivrance de principes actifs pour des applications ophtalmologiques." Journal Français d'Ophtalmologie 30, no. 10 (December 2007): 1070–88. http://dx.doi.org/10.1016/s0181-5512(07)79290-2.
Full textNicolas, Julien, and Patrick Couvreur. "Les nanoparticules polymères pour la délivrance de principes actifs anticancéreux." médecine/sciences 33, no. 1 (January 2017): 11–17. http://dx.doi.org/10.1051/medsci/20173301003.
Full textLe Corre, Pascal. "Bio-équivalence et génériques de principes actifs à marge thérapeutique étroite." La Presse Médicale 39, no. 2 (February 2010): 169–76. http://dx.doi.org/10.1016/j.lpm.2009.09.017.
Full textCastagnos, P., C. Mauroy, J. Teissié, M. P. Rols, M. Blanzat, and I. Rico-Lattes. "R94: Vésicules catanioniques pour la vectorisation de principes actifs anticancéreux : compréhension mécanistique." Bulletin du Cancer 97, no. 4 (October 2010): S53. http://dx.doi.org/10.1016/s0007-4551(15)31013-4.
Full textSy, Papa Mady, Peggy Ngadou Ntchobaha, Sidy Mouhamed Dieng, Louis Augustin D. Diouf, Alphonse R. Djiboune, Boucar Ndong, Mamadou Soumboundou, et al. "Systèmes à libération contrôlée pH-dépendants de principes actifs hydrophobes à partir d’oléogels." International Journal of Biological and Chemical Sciences 15, no. 2 (June 21, 2021): 388–98. http://dx.doi.org/10.4314/ijbcs.v15i2.2.
Full textFanet-Goguet, Marianne, Sylvie Martin, Christine Fernandez, Bruno Fautrel, and Pierre Bourgeois. "Le point sur les biothérapies dans la polyarthrite rhumatoïde : principes actifs disponibles, stratégie thérapeutique." Therapies 59, no. 4 (July 2004): 451–61. http://dx.doi.org/10.2515/therapie:2004077.
Full textBazus, Léa, Nicolas Cimetiere, Laurent Legentil, Guy Randon, and Dominique Wolbert. "Recherche de dérivés conjugués de médicaments dans l’eau de surface et en cours de potabilisation." Revue des sciences de l’eau 28, no. 1 (April 21, 2015): 19–25. http://dx.doi.org/10.7202/1030003ar.
Full textSalah, Benkherara, Bordjiba Ouahiba, and Djahra Ali Boutlelis. "Action des Principes Actifs Naturels d’une Plante Aromatique Algérienne Vis-à-Vis des Entérobactéries Pathogènes." Algerian Journal of Arid Environment 3, no. 2 (December 2013): 15–23. http://dx.doi.org/10.12816/0008896.
Full textDissertations / Theses on the topic "Encapsulation de principes actifs"
Fatnassi, Mohamed. "Microsphères nano-structurées obtenues par atomisation-séchage : synthèses, caractérisation, encapsulation et libération de principes actifs." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20243/document.
Full textFor the first time, a new one-pot synthesis approach associating sol-gel, self-assembly andspray-drying allows in forming microspheres with tuneable textures (worm-like mesophases,drug nano-domains, core-shell organisation) and drug delivery properties (from burst todelayed releases). The parameters which control these properties are the surfactant content,the nature of the couples (drug, surfactant) as well as the functionalisation of the siloxanenetwork
Bichara, Ali. "Étude des transferts de matière entre polymères et différents liquides : applications à l'encapsulation de principes actifs et à l'emballage." Saint-Etienne, 1998. http://www.theses.fr/1998STET4025.
Full textDeligey, Fabien. "Caractérisation RMN de matériaux hybrides pour l’encapsulation de principes actifs." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0093/document.
Full textNowadays, a way of developing novel medicinal compounds focuses on confinement of known active molecules inside nanoparticles. Therefore, hybrid materials emerge, exhibiting new properties related to nano-confinement. This work relies on the sensibility of solid-state Nuclear Magnetic Resonance (SS-NMR) towards molecular scale phenomena in order to perform structural and dynamical analysis of two delivery systems. They are modulated by the influence of residual solvent molecules (H2O). Temperature and hydration ranges are identified, for which the complex stays associated, although it is in a liquid-like state. Toward the limit of water absence, movement restrictions of the confined complexes are elucidated by characterizing dipolar host / guest interactions. The second system combines a double vectorization of hydrophobic curcumin molecules inside solid lipid nanoparticles, encapsulated inside a silica matrix (SBA-15). A joint SS-NMR and Differential Scanning Calorimetry (DSC) characterization strategy is put in place. The results show that other factors than compartmentalization (polymorphism, molecular dynamics of host compounds) should also be taken into account to understand the properties of these very heterogeneous materials. Despite resorting to the latest NMR instrumentation (1GHz spectrometer, 1.3mm MAS probehead), presence of the active ingredient is only detected inside the surfactant compartment. These results allow making new assumptions for the distribution of curcumin inside the material while showing the limits of an NMR approach relying solely on the study of 1H nuclei
Timbart, Laurianne Langlois Valérie. "Élaboration de copolymères à base de biopolyesters pour la libération contrôlée de principes actifs." Créteil : Université de Paris-Val-de-Marne, 2007. http://doxa.scd.univ-paris12.fr:8080/theses-npd/th0394295.pdf.
Full textVersion électronique uniquement consultable au sein de l'Université Paris 12 (Intranet). Titre provenant de l'écran-titre. Bibliogr. : 281 réf.
Bodin, Noémi. "Formation d'émulsions multiples stables, stimulables et biocompatibles; application à l'encapsulation et au relargage contrôlé de principes actifs." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX060/document.
Full textIn this work, we studied different kinds of emulsions stabilized by biocompatible diblock copolymers polydimethylsiloxane-b-poly(dimethylaminoethyle methacrylate) (PDMS-b-PDMAEMA). PDMAEMA is sensitive to pH and ionic strength thanks to the amine groups carried by the chain. Varying the latter parameters, we obtained direct, inverse and W/O/W double emulsions in only one emulsification step, by shearing an aqueous phase and a biocompatible oil (Miglyol® 812 or isopropyle myristate). For a copolymer having hydrophilic and hydrophobic blocks of similar lengths, PDMS60-b-PDMAEMA50, very stable multiple emulsions (more than two years) were obtained, for pH close to pKa of PDMAMEA and in a large range of salt concentrations. Cytotoxicity measurements were performed on intestinal human cells, proving the possibility of using the emulsions stabilized with these copolymers to develop applications for health care.pH lowering allows to turn direct emulsions to multiple ones, leading to the controlled release of encapsulated species in the inner water drops. Encapsulation tests have been carried out with a model molecule, sucrose, and with an antioxidant extracted from green tea, catechin. Both molecules could be released from our emulsions by reducing the pH, despite the formation of hydrogen bonds between the encapsulated compounds and the copolymer which prevented complete deliverance. We demonstrated the ability of our multiple emulsions to protect the fragile catechin molecule during storage and preserve its antioxidant capacity.Additionally, we achieved the formation of PDMS-b-PDMAEMA stabilized emulsions by microfluidics. An innovative method was developed to allow the formation of double emulsions on PDMS microchips in an easy way. W/O/W emulsions were obtained for precise pH and salt concentrations, and catechin could also be successfully encapsulated in the internal water droplets by this method
Timbart, Laurianne. "Élaboration de copolymères à base de biopolyesters pour la libération contrôlée de principes actifs." Paris 12, 2005. https://athena.u-pec.fr/primo-explore/search?query=any,exact,990003942950204611&vid=upec.
Full textPoly(3-hydroxyalkanoate)s (P(3-HA)s), are aliphatic biopolyesters with saturated and unsaturated side chains of different lengths. They are produced by a wide range of microorganisms. These biopolymers are biodegradable and biocompatible and can be used for biomedical applications. The aim of the study was to investigate and improve the properties of novel materials based on P(3-HA)s. Copolymers based on P(3-HA)s and semi-crystalline polymers (poly(ε-caprolactone) or poly(lactic acid)) with different structures e. G. Block, graft or statistic copolymers, were synthesized. The presence of unsaturated units on side chains affords us the ability to prepare functionalised copolymers. Block copolymers were used to prepare mucoadhesive nanoparticles by nanoprecipitation and encapsulating doxorubicin. Doxorubicin is a chemotherapeutic agent used to treat bladder disease. The amount of P(3-HA) in the copolymers was used to control the release of doxorubicin
Chausson, Mickaël. "Développement de nouveaux systèmes dispersés pour la vectorisation de principes actifs à visées cosmétiques par polymérisation en miniémulsion." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10112.
Full textThe aim of this work is the encapsulation of active ingredients by vinyl acetate miniemulsion polymerization for cosmetic use. This process allows to obtain latexes with high solid content and containing high amount of active molecule. This work is divided into two parts: 1) nanoparticles formation by miniemulsion polymerization and incorporation of different active principles 2) determination of the nanoparticles morphology. At first, the process of radical miniemulsion polymerization in for vinyl acetate is optimized. The hydrophobe compound, which is essential for the miniemulsion stability, is ensured by the active principle itself. We obtained several stable latexes with different active molecules at three different temperatures: 277 °K, 293°K and 313°K during six months. In the second part of this work, we studied the internal morphology of nanoparticles. A predictive study, based on the surface and the interfacial tension measurements between the different compounds of miniemulsion has been undertaken, which indicates a partial engulfing of the active principle by the polymer. Although the observation of PVAc lattices by electronic microscopy may be questionable, these studies seem to confirm this trend. The change of the surfactant and the monomer addition during the reaction of polymerization can favour the formation of nanocapsules
Chaouat, Clara. "Conception de nouveaux systèmes de formulation d'actifs dépigmentants, en vue de leur utilisation par voie cutanée." Toulouse 3, 2013. http://thesesups.ups-tlse.fr/1947/.
Full textThe encapsulation of active molecules is central to the toolbox of the formulator of the third millennium. The use of this technique is increasingly used because it has many advantages; controlled release of active molecules in their environment, decrease the toxicity of assets or carry the active ingredient to the target. The skin which is a physiological barrier function is to protect biological and physiological preventing the penetration of pathogens and xenobiotics. The industry does not develop new active molecules specifically designed to topically; the major challenge of this mode of administration is to find techniques to counter the disadvantages of this route of administration. This work done in collaboration with Pierre Fabre Laboratories consists in developing new systems depigmenting agents, to use topically. To do this we wanted to operate numerous properties of chitosan, polysaccharide biocompatible, biodegradable, to place this work in a sustainable development approach. It is then, in this work, to develop systems combining active depigmenting skin penetration enhancer, salt encapsulated chitosan to form complexes with depigmenting properties. Complexes formed, may through penetration enhancer facilitate the passage of the active molecule through the different layers of the epidermis, to facilitate the delivery of the asset to its site of action, ie ie, the melanocyte. These original systems are then used to develop new bioactive formulations that can be used in therapy hyperpigmentation
Monza, Da Silveira Airton. "Formulation et caracterisation de nanoparticules combinees de poly(cyanoacrylate d'isobutyle) et de cyclodextrines destinees a l'administration de principes actifs faiblement solubles dans l'eau (doctorat : pharmacotechnie et biopharmacie)." Paris 11, 1998. http://www.theses.fr/1998PA114858.
Full textQuellec, Patricia. "Nanosphères "furtives" à base de copolymères biodégradables pour la libération contrôlée de principes actifs hydrophobes et de protéines." Vandoeuvre-les-Nancy, INPL, 1997. http://www.theses.fr/1997INPL133N.
Full textBook chapters on the topic "Encapsulation de principes actifs"
Azzouz, M. "Toxicité et principes actifs des plantes." In Plantes toxiques à usage médicinal du pourtour méditerranéen, 291–96. Paris: Springer Paris, 2013. http://dx.doi.org/10.1007/978-2-8178-0375-3_34.
Full textRavelli, Quentin. "4. Principes actifs : entre expérimentation et productivité." In Les travailleurs du médicament, 107. ERES, 2014. http://dx.doi.org/10.3917/eres.four.2014.01.0107.
Full text"Annexe : Noms de spécialité des principes actifs (DCI)." In Chimie bioorganique et médicinale du fluor, 346–52. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0266-1-010.
Full text"Annexe : Noms de spécialité des principes actifs (DCI)." In Chimie bioorganique et médicinale du fluor, 346–52. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0266-1.c010.
Full text"Considérations particulières applicables aux actifs incorporels." In Principes de l'OCDE applicables en matière de prix de transfert à l'intention des entreprises multinationales et des administrations fiscales, 277–357. OECD, 2017. http://dx.doi.org/10.1787/tpg-2017-10-fr.
Full text"Annexe au chapitre VI. Exemples illustrant les principes relatifs aux actifs incorporels." In Principes de l'OCDE applicables en matière de prix de transfert à l'intention des entreprises multinationales et des administrations fiscales, 621–56. OECD, 2017. http://dx.doi.org/10.1787/tpg-2017-25-fr.
Full text"Annexe au chapitre VI. Exemples sur les actifs incorporels dont l'évaluation est très incertaine." In Principes de l'OCDE applicables en matière de prix de transfert à l'intention des entreprises multinationales et des administrations fiscales 2010, 399–402. OECD, 2010. http://dx.doi.org/10.1787/tpg-2010-19-fr.
Full textAligica, Paul Dragos, Peter J. Boettke, and Vlad Tarko. "Dynamic Governance." In Public Governance and the Classical-Liberal Perspective, 60–80. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190267032.003.0004.
Full textBrown, Alan W., David J. Carney, Edwin J. Morris, Dennis B. Smith, and Paul F. Zarrella. "Replacing the Message Service in a CASE Integration Framework." In Principles of CASE Tool Integration. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195094787.003.0015.
Full textConference papers on the topic "Encapsulation de principes actifs"
Maestro, Alicia, Esther Santamaria, Jose Maria Gutierrez, and Carmen Gonzalez. "Encapsulation of hydrophilic and lipophilic active principles in coloured polysaccharide hydrogels: study of stability." In 14th Mediterranean Congress of Chemical Engineering (MeCCE14). Grupo Pacífico, 2020. http://dx.doi.org/10.48158/mecce-14.dg.08.03.
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