Academic literature on the topic 'Composé lipophile'
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Journal articles on the topic "Composé lipophile"
S. Pragati, S. Kuldeep, S. Ashok, and M. Satheesh. "Solid Lipid Nanoparticles: A Promising Drug Delivery Technology." International Journal of Pharmaceutical Sciences and Nanotechnology 2, no. 2 (2009): 509–16. http://dx.doi.org/10.37285/ijpsn.2009.2.2.3.
Full textKrouit, Mohammed, Robert Granet, Pierre Branland, Bernard Verneuil, and Pierre Krausz. "New photoantimicrobial films composed of porphyrinated lipophilic cellulose esters." Bioorganic & Medicinal Chemistry Letters 16, no. 6 (2006): 1651–55. http://dx.doi.org/10.1016/j.bmcl.2005.12.008.
Full textBenouadah, Nacera, Andrey Pranovich, Djamel Aliouche, Jarl Hemming, Annika Smeds, and Stefan Willför. "Analysis of extractives from Pinus halepensis and Eucalyptus camaldulensis as predominant trees in Algeria." Holzforschung 72, no. 2 (2018): 97–104. http://dx.doi.org/10.1515/hf-2017-0098.
Full textGonzaga, Ferdinand, Bénédicte Segues, Émile Perez, Isabelle Rico-Lattesh, and Armand Lattes. "Decontamination chimique. II. Oxydation de composés soufrés en milieu micellaire: rôle de la lipophilie des substrats." Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry 1, no. 3 (1998): 209–16. http://dx.doi.org/10.1016/s1387-1609(99)80082-6.
Full textKumar R., Selva, S. K. Ashok Kumar, Kari Vijayakrishna, et al. "Development of highly selective potentiometric thorium(iv) ion-selective electrode: exploration supported with optical and DFT analysis." Analytical Methods 11, no. 10 (2019): 1338–45. http://dx.doi.org/10.1039/c8ay02740d.
Full textPieraccini, Silvia, Michael A. Terzidis, Enrico J. Baldassarri, et al. "A lipophilic “fully-anti” dodecamer from a (5′S)-5′,8-cyclo-2′-deoxyguanosine." Chem. Commun. 50, no. 73 (2014): 10722–25. http://dx.doi.org/10.1039/c4cc04275a.
Full textRYCHEN, G., C. DUCOULOMBIER-CREPINEAU, N. GROVA, S. JURJANZ, and C. FEIDT. "Modalités et risques de transfert des polluants organiques persistants vers le lait." INRAE Productions Animales 18, no. 5 (2005): 355–66. http://dx.doi.org/10.20870/productions-animales.2005.18.5.3538.
Full textHernandez-Delgadillo, Rene, Appala Raju Badireddy, Valentin Zaragoza-Magaña, Rosa Isela Sánchez-Nájera, Shankararaman Chellam, and Claudio Cabral-Romero. "Effect of Lipophilic Bismuth Nanoparticles on Erythrocytes." Journal of Nanomaterials 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/264024.
Full textNg, S. H., P. M. WOI, and C. C. ENG. "Phase Manifestation and Formation of Nanoemulsions Composed of Imidazolium-based Ionic Liquid, Tween 80/Span 80 and Labrafac Lipophile WL 1349." ASEAN Journal on Science and Technology for Development 32, no. 2 (2017): 85. http://dx.doi.org/10.29037/ajstd.60.
Full textCoelho, Felipe Lange, Fabiano Severo Rodembusch, and Leandra Franciscato Campo. "Synthesis, characterization and photophysics of new photoactive ESIPT lipophilic dyes. Partition experiments with different composed liposomes." Dyes and Pigments 110 (November 2014): 134–42. http://dx.doi.org/10.1016/j.dyepig.2014.04.024.
Full textDissertations / Theses on the topic "Composé lipophile"
Behaeghel, Amélie. "Etude des transferts de matière (eau/solutés : urée et nacl) à travers trois membranes huileuses." Compiègne, 1997. http://www.theses.fr/1997COMP1044.
Full textÉmond, Claude. "Modèle pharmacocinétique à base physiologique (PBPK) pour les composés hautement lipophiles." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ65355.pdf.
Full textSoayfane, Zeina. "Implication des transporteurs SR-B1, NPC1L1 et la P-glycoprotéine dans l'absorption intestinale des composés lipophiles." Toulouse 3, 2011. http://thesesups.ups-tlse.fr/1399/.
Full textIntestinal absorption of lipids and lipophilic micronutrients involves apical membrane transporters of the enterocyte such as NPC1L1, SR-B1 and CD36. In addition, multidrug ABC transporters such as P-glycoprotein (Pgp) or MRP or BCRP, are involved in effluxing and in limiting the bioavailability of lipophilic xenobiotics including drugs in the body. They can also transport lipids such as cholesterol or phospholipids, suggesting a role of these transporters in the lipid turn-over. The objectives of the thesis were (i) to characterize the contribution of NPC1L1 and SRB1 in the cholesterol and vitamin E (tocopherol) absorption throughout the small intestine, (ii) to identify the role of Pgp in the lipid homeostasis in the body and (iii) to evaluate the influence of lipid formulations on the Pgp-mediated transport of ivermectin, a lipophilic drug from anthelmintic macrocyclic lactone family. In Caco-2 cells, in the presence of oleic acid, the cholesterol and tocopherol share common uptake pathways through NPC1L1 and SR-B1. In mice, we showed that the absorption of tocopherol occurred in the medial and distal jejunum. Specific roles in the absorption of cholesterol and tocopherol were envisaged for these transporters based on their intestinal localization. NPC1L1-mediated intestinal absorption of cholesterol occurs throughout the small intestine while it takes place in the distal part for tocopherol. SR-B1 is involved in the in distal intestinal absorption of cholesterol and in the proximal intestine for tocopherol (Publication 1: Soayfane et al. , 2011). In addition, Pgp-deficient mice developed metabolic disorders and obesity suggesting an important role of this transporter in the maintenance of lipid homeostasis (Publication 2: Foucaud- Vignault et al. , 2011). Moreover, a significant decrease in postprandial triglyceride levels was observed in these mice. Indeed, we have shown that Pgp deficiency is associated with a decrease in intestinal fat absorption and increased uptake of lipids by adipose tissue (Publication 3: Soayfane et al. , in preparation). Finally, the bioavailability of ivermectin, formulated in oil or in excipient such as polysorbate 80, was determined. We showed that a polysorbate based-formulation enhanced the bioavailability of ivermectin in mice by inhibiting the Pgp (Publication 4: Soayfane et al. , in preparation). In conclusion, we have contributed to the understanding of some mechanisms underlying the intestinal absorption of several lipophilic compounds. Specific roles of NPC1L1 and SR-B1 were determined along the intestine in the absorption of cholesterol and tocopherol. In addition, other transporters may be involved in tocopherol absorption in the medial and distal intestine. Moreover, lipid homeostasis is disturbed in the absence of Pgp. An obesity and a decrease in the postprandial triglyceridemia occurred in Pgp-deficient mice. These results could reveal new physiological functions of Pgp. Finally, vehicule-based formulations which are able to inhibit Pgp, should improve the bioavailability and certainly the efficacy of lipophilic drugs. This work should contribute to better understand the mechanisms underlying lipid absorption and will allow to propose strategy to enhance the absorption of key lipophilic compounds such as those contained in our diet or therapeutical agents
Poaty-Poaty, Bouddah. "Modification chimique d'antioxydants pour les rendre lipophiles: application aux tannins." Phd thesis, Université Henri Poincaré - Nancy I, 2009. http://tel.archives-ouvertes.fr/tel-00411819.
Full textZhu, Ying. "Hydrotopes et tensioactifs nonioniques à tête polaire dérivée de polyols : isosorbide, glycérol et éthylène glycol." Thesis, Lille 1, 2008. http://www.theses.fr/2008LIL10158/document.
Full textThis work presents the synthesis and physico-chemical characterization of nonionic amphiphilic compounds (hydrotropes or surfactants) derived from ethylene glycol, glycerol and isosorbide. The replacement of an ether bond by an ester linkage in polyethoxylated derivatives is a way to access compounds with enhanced biodegradability. Long-chain polyethoxylated esters (C9COE3, C9COE4) are more hydrophilic and exhibit reduced liquid crystal dornains compared to the corresponding ethers (C10E3, C10E4). The short-chain ester C3COE1 is as efficient as C4E1 in applications and allowed to show that there is a lower limit in amphiphilicity to get a structuration in microemulsion, whereas the self-association in water exhibits a progressive evolution from solvents to "solvosurfactants" . The isosorbide derivatives are of special interest because this diol, obtained from starch, will undergo a significant production increase. Hydrotropes with an isosorbide polar head (CiIso, i = 4-6) exhibit better perfonnances in application than standard glycol ethers. Moreover, they are non- VOC. When substituted on the 5-position, isosorbide brings a hydrophilicity slightly higher than two ethylene oxyde units, whereas it is equivalent to one when substituted on the 2-position, due to the persistence of an intramolecular hydrogen bond. Isosorbide is a promising polar synthon for the design of "green" amphiphiles
Durand, Grégory. "Synthèse, études physico-chimiques et biologiques de nouveaux spin traps amphiphiles." Avignon, 2002. http://www.theses.fr/2002AVIG0213.
Full textThe works described here, have been focused on the synthesis, the physico-chemical and the biological studies of a novel series of a-phenyl-N-tert-butylnitrone (PBN) derived amphiphilic spin-traps. The amphiphilic character of these compounds was supposed to enhance their membrane-crossing ability and thus to provide a better cellular protection against free radicals. The spin-trapping efficacy of these compounds has been specified by different experimental assays (ESR studies and in vitro biological models). Such new compounds should play a crucial role for the treatment of various diseases involving a free radicals generation
Ali, Moussa. "Contributions à la détermination du mode d'action de ruthénacycles anti-tumoraux." Strasbourg, 2011. http://www.theses.fr/2011STRA6217.
Full textThis work falls within the research field of bio-organometallic chemistry developed in a research laboratory. For many years, cycloruthenated compounds have been synthesized, and the first studies revealed that these compounds showed cytostatic and cytotoxic properties. RCD 11 is the current prototype in this family. Previous studies have revealed that the mechanism of action is because this compound possesses an affinity for DNA, however it is weaker than cisplatin. The reduction of the compounds that will interact with the DNA suggests that other alternative ways than altering to DNA can be implied. Following these results, we decided to research into the mechanism of action of these organometalic compounds by establishing the structure or property-activity correlation on the one hand, and studying their relationship with proteins on the other hard. A series of new compounds were synthesized and characterized by their physico-chemical properties like lipophilicity and redox potential. The anticancer properties were determined in vitro. It showed that hydrophobicity of the compounds is one of the necessary properties needed to cross the membrane wall. As for redox potential, it changes the chemical origin of the biological activity. The other approach consisted of preparing affinity chromatography support aids from the matrix type Hypogel-400 and Toyopearl-AF-carboxylique-650 M. We operated our compounds with amino function in order to click them with these matrixes which possess carboxylic acid function. To carry out the affinity chromatography, we used macro-molecules from cancerous cells from human glioblastome (U87). These studies showed the presence of three proteins indentified by spectrometry of mass that corresponds to histones H4, H2A, H2B and H3. 1. Even though they are preliminary, these experiments are encouraging because they suggest that the derivative of ruthenium directly or indirectly interact with histones, resulting in post-operational modifications (phosphorylation, acétylation) Finally we carried out pharmacokinétical studies in order to observe, through time, the outcome of the introduction of our compounds in a living organism. We concluded that the distribution of the ruthenium differs from one organ to the other. After administering a dose of cisplatin and a compound of ruthenium in a mouse, we observed that the platine concentration was mainly found in the brain and the liver. However, ruthenium was not found in the brain. These results are very significant because neurotoxicity is one of the secondary effects of cisplatin
Auberlet, Delle-Vedove Agnès. "Synthèse et étude structurale de n-benzoyl-n'-phenylurees, insecticides, en vue d'établir une relation entre la structure, la rétention dans des adsorbants modèles et le mode de dégradation. Suivi de recherches sur l'enseignement expérimental de la formulation : étude d'une famille de tensioactifs." Angers, 1995. http://www.theses.fr/1995ANGE0002.
Full textChailloux, Nelly. "Synthèse et propriétés amphiphiles des carboxylates de sodium des monoesters d'acides α, [omega]-dicarboxyliques". Lille 1, 2004. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2004/50376-2004-107-108.pdf.
Full textBook chapters on the topic "Composé lipophile"
Setiati, Rini, Aqlyna Fatahanissa, Shabrina Sri Riswati, Septoratno Siregar, and Deana Wahyuningrum. "Potential of Bagasse as Raw Material for Lignosulfonate Surfactant." In Sugarcane [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96373.
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