Dissertations / Theses on the topic 'Lipophilie'
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Talab, Akram. "Synthèse de modèles de métabolites et étude biologique de trois barbituriques à chaîne ramifiée (méthyl-3 butyle ou méthyl-2 propyle), en vue de la mise en évidence du rôle de la lipophilie." Paris 11, 1989. http://www.theses.fr/1989PA114824.
Full textDarrouzain, François. "Lipophilie moléculaire et mécanisme d'association de molécules dérivées de l'huperzine A avec l'albumine humaine : approche biochromatographique." Besançon, 2006. http://www.theses.fr/2006BESA2069.
Full textLong known for their military and phytosanitary use, cholinesterase inhibitors nowadays also have many therapeutic uses. Many molecules have proven useful in treating Alzheimer's disease, but have some limitations. Which is why new products, more selective and less toxic, are constantly being sought. The recent discovery of the Huperzine A plant in the Chinese pharmacopeia has aroused widespread interest in the scientific community. Nonetheless, as is always the case for new molecules, many points of its pharmacology have yet to be elucidated, notably a better understanding of the molecules distribution within the organism. This distribution is limited by two points of its profile : the fraction un-bound to proteins and the lipophilic character of Huperzine A. Among the methods used to elucidate the binding of the molecule to proteins and study the molecular lipophilicity of the alkaloid, high performance liquid chromatography holds pride of place. Thus, via modern chromatographic techniques, the first part of the required research is based on the study of the interactions that dominate the binding of analogues of Huperzine A to a key protein : Albumin. This study clearly shows the importance of hydrophobic forces in the binding mechanism. Meanwhile, the analysis of the thermodynamic data and the comparison with a series of molecules with known sites for binding the albumin protein establish elements needed for determining the binding site for Huperzines. The second part of the required research is based on the determination of the lipophilic character of the Huperzine A series. This study proved that the chromatographic techniques employed enabled accurate predictions of the molecular lipophilicity of Huperzines, and the comparison of the parameters thus obtained with the apparent binding with Albumin confirmed the preponderance of hydrophobic interactions in Huperzine-protein binding
Chaimbault, Corinne. "Pharmacomodulation en série oxazoline : application à la mise au point de ligands des récepteurs aux imidazolines." Bordeaux 2, 1999. http://www.theses.fr/1999BOR2PB01.
Full textHerber, Bernd. "Verteilung von Pharmaka ins Gehirn Korrelation mit der Lipophilie und Abhängigkeit vom Applikationsweg /." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=967122228.
Full textSteiner, Samuel Hans. "Kinetik der Verteilung und Fettgewebsspeicherung von Barbituraten in Abhängigkeit von Lipophilie und Strukturmerkmalen /." [S.l : s.n.], 1988. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Full textJagou, Maryline. "Fixation protéique des antiinflammatoires non stéroi͏̈diens et lipophilie moléculaire. Application aux dérivés arylpropioniques." Bordeaux 2, 1996. http://www.theses.fr/1996BOR2M086.
Full textFournet, Marie-Pierre. "Distribution pulmonaire et bactérienne des macrolides : lincosamides, streptogramines et tétracyclines." Paris 12, 1987. http://www.theses.fr/1987PA120039.
Full textDelbos-Guesdon, Marie-Pierre. "Etude des corrélations log P." Bordeaux 2, 1997. http://www.theses.fr/1997BOR2B002.
Full textBrée, Françoise. "Interactions de quelques agonistes et antagonistes béta-adrénergiques avec leurs protéines fixatrices : recherche de corrélations entre la structure chimique de ces médicaments, la fonction de la protéine fixatrice et l'effet pharmacologique." Paris 12, 1987. http://www.theses.fr/1987PA120024.
Full textYebga, Albert. "Etude de l'influence de l'introduction du soufre sur le métabolisme de barbituriques porteurs d'une chaîne ramifiée." Rouen, 1994. http://www.theses.fr/1994ROUE04NR.
Full textLakin, Elisa [Verfasser]. "Charakterisierung des IgE von Patienten mit Chronischer Spontaner Urtikaria hinsichtlich der Autoreaktivität und Lipophilie / Elisa Lakin." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2021. http://d-nb.info/1228859493/34.
Full textNguyen, Ngoc Thanh Dien. "Détermination de nouvelles constantes atomiques de lipophilie utilisables pour la prévision du log P d'une molécule." Bordeaux 2, 1996. http://www.theses.fr/1996BOR2B002.
Full textGhaib, Amar. "Pharmacomodulation autour du squelette octahydropyrimido[3,4-a]-s-triazines : introduction de restes alkyles de lipophilie croissante." Rouen, 2001. http://www.theses.fr/2001ROUE03NR.
Full textIminodimethylation of 6 monoalkyl and dialkyl 5-aminopyrimidinediones by various primary amines was studied. The synthesis of these synthons was performed from ethyl cyanacetates, previously alkylated in 2 position, which reacted with area in alkaline medium. Alkylation of the strongly activated methylenes, situated between a nitrile and an ester groupe, in alkaline medium, leads to a mixture of unalkylated, monoalkylated and dialkylated derivatives. It was then necessary to use the différences of solubilities of the salts of theses compounds to separated them. In order to avoid these difficulties, two other synthetic pathways were used. Iminodimethylation of these synthons yielded 24 octahydropyrimido[3,4-a]-striazines, variously dialkylated, which were submitted to an automated pharmacological screening, especially in the area of antimicrobial agents. A series of 23 pyrimido[3,4-a]-s-triazines monoalkylated in position 9 were synthetized by iminodimethylation of 5-monoalkyl-6-aminopyrimidine 1,3-diones. It was shown that the structure was triazinic and not pyrimido pyrimidinic as it could have been. These compounds, despite a good overlay with Ketanserin, a well known anti 5-HT2, only showed a weak activity in automated screening
Vilarem, Gérard. "Synthèse, activité anticholinestérasique et étude toxicocinétique de quelques N-méthyl, carbamates d'oxime." Toulouse, INPT, 1988. http://www.theses.fr/1988INPT037G.
Full textGautier, Sandrine. "Hydrophobisation du vecteur poly(L-lysine citramide) : comportement physico-chimique et aptitude à solubiliser des molécules lipophiles dans l'eau." Montpellier 1, 1995. http://www.theses.fr/1995MON13503.
Full textAdetchessi, Ouro-Sama. "Conception et synthèse de 2-Amino-2-Oxazolines : contribution à l'étude de leur réactivité." Bordeaux 2, 1996. http://www.theses.fr/1996BOR2B003.
Full textRoblin, Jean-Philippe. "Synthese de modeles oligomeriques de lignines et greffage sur support solide : etude de leurs proprietes physicochimiques et de leur lipophilie." Toulouse 3, 1998. http://www.theses.fr/1998TOU30090.
Full textBenali, Saïda. "Etude analytique de la mise sous forme de nanocapsules de deux substances lipophiles : conséquences sur le métabolisme de la phénylbutazone." Rouen, 2000. http://www.theses.fr/2000ROUES043.
Full textSchmitt, Monique. "Relations entre la lipophilie des principes actifs, l'hydrophilie des excipients et l'absorption rectale étude biopharmaceutique appliquée aux suppositoires d'antiinflammatoires non stéroïdiens /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376097950.
Full textClédat, Dominique. "Influence de la structure sur la basicite, la lipophilie et la stabilité de quelques dérivés du benzamido-2 nitro-5 thiazole." Limoges, 1989. http://www.theses.fr/1989LIMO0055.
Full textSCHMITT, MONIQUE. "Relations entre la lipophilie des principes actifs, l'hydrophilie des excipients et l'absorption rectale : etude biopharmaceutique appliquee aux suppositoires d'antiinflammatoires non steroidiens." Strasbourg 1, 1987. http://www.theses.fr/1987STR13063.
Full textNicolai, Anja. "Amid- und esterfunktionalisierte Amine sowie deren Verwendung als Ionophore bzw. als Trägermaterialien in der Suzuki-Reaktion." Doctoral thesis, Universitätsbibliothek Chemnitz, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200901138.
Full textPehourcq, Fabienne. "Relations structure-activité dans la série des 2-amino-2-oxazolines." Bordeaux 2, 1991. http://www.theses.fr/1991BOR2B002.
Full textGraton, Jerome. "Basicité des Amines et de Nicotines : Liaison Hydrogène et Protonation." Phd thesis, Université de Nantes, 2001. http://tel.archives-ouvertes.fr/tel-00090950.
Full textDamatte, Elisabeth. "Etude expérimentale et théorique de l'influence de la structure, de la lipophilie et de la fixation tissulaire des médicaments sur quelques paramètres pharmacocinétiques et pharmacologiques." Clermont-Ferrand 1, 1993. http://www.theses.fr/1993CLF1PP06.
Full textOliveira, Maria Manuela Pereira de. "Optimisation des paramètres biopharmaceutiques de l'indinavir." Poitiers, 2005. http://www.theses.fr/2005POIT1801.
Full textSai͏̈d, Abdou Elmadjid. "Contribution à l'étude de la relation structure-activité des psoralènes utilisés en thérapeutique." Besançon, 1996. http://www.theses.fr/1996BESA3502.
Full textZhang, Chen. "Metal-NHC complexes for anti-cancer applications : gold(I) for antimitochondrial activity and iridium(III) for photodynamic therapy." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30129/document.
Full textIn this work of thesis, several groups of novel NHC-based gold(I) complexes containing aliphatic and aromatic amino-side arms with interesting potential in biomedical applications have been synthesized and fully characterized. Also, a series of iridium(III) complexes containing NHC ligands with pronounced PDT anticancer activities has been prepared and fully characterized. The first group represents a family of cationic bis(NHC)-gold(I) complexes containing aliphatic amino-side arms. These complexes have been synthesized and investigated for their antiproliferative activities towards four human cancer cell lines and the non-cancerous MDCK cell line. In this series, the lipophilicity correlates directly with the cytotoxic activity against cancer cells. The second family of compounds concerns cationic gold(I) bis(NHC) complexes containing aromatic amino-side arms. The in vitro cytotoxicity of these complexes and proligands on the representative PC-3 prostate and T24 bladder cancer cell lines has been evaluated. All these complexes show higher Log P values (lipophilicity) than the first series of complexes, and in line with this higher cytotoxicity, nevertheless too high lipophilicity can also lead to lower selectivity. In order to develop a drug candidate with optimized activity and selectivity, we designed and synthesized the third family of cationic gold(I) bis(NHC) complexes. The Log P values of this series were between the first series and the second series. The lower cytotoxicity towards non-cancerous NIH3T3 cells was found for this series of complexes whereas they also displayed less activities towards cancer cells than the second series. The mechanistic studies on two gold complexes by monitoring the cellular uptake showed the rapid cellular accumulation of the intact gold bis(NHC) and a good bioavailability, in good agreement with the antiproliferative activity of these two complexes. Moreover, both complexes inhibit TrxR, a common target for gold(I) complexes. The cell death induced by these two complexes was ROS-dependent. Besides anticancer activities, we also tested gold(I) mono-NHC complexes for other biomedical applications in parasite disease Leishmaniasis. They were screened in vitro against both promastigote and axenic amastigote forms of L. infantum. Moreover, their cytotoxicity was evaluated on the murine J774A.1 macrophages in order to determine their selectivity of action. Another topic of this thesis concerns iridium(III)-NHC complexes. Three families of theranostic iridium(III)-NHC complexes were prepared and characterized. The in vitro cytotoxicity of all the complexes against PC-3 prostate, T24 bladder cancer cells and non-cancerous NIH3T3 cells was evaluated. Moreover, all complexes are theranostic agents, and the confocal microscopy experiments of one complex showed that it can be quickly and effectively taken up into PC-3 cells and specifically localize into mitochondria. Interestingly, these complexes can act as efficient photosensitizers. The cytotoxicity of these complexes was increased substantially upon 365 nm light irradiation, which suggested the high potential to be mitochondria-targeting theranostic anticancer agents for photodynamic therapy
Di, Battista Marie. "Optimisation d'une formulation par compression directe : application à deux formules de comprimés effervescents destinés à la voie orale." Bordeaux 2, 2000. http://www.theses.fr/2000BOR2P073.
Full textEnot, David. "La modélisation moléculaire en tant qu'outil prédictif et de compréhension du comportement thermotrope et lyotrope de sucres. Approche QSPR de la lipophilie de 1,2-dithiole-3-thiones et 1,2-dithiole-3-ones." Rennes 1, 2001. http://www.theses.fr/2001REN10117.
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
Chemali, Jad. "Synthèse, études physico-chimiques et biologiques de conjugués oestradiol - rose bengale pour la thérapie photodynamique anticancéreuse." Toulouse 3, 2012. http://www.theses.fr/2012TOU30347.
Full textPhotodynamic therapy (PDT) is an anti-cancer therapeutic treatment based on the release of reactive species oxygenated by a photosensitizer in the presence of light and oxygen. To increase the photocytotoxic activity of the photosensitizer, the active vectorization of the Rose Bengal by targeting the nuclear receptor of estradiol was carried out. To achieve this objective, the derivatisation of the estradiol in position 17 beta using succinic anhydride was optimized in the first time according to solvents and temperature. In the second time, the fixing of the Rose Bengal to the 17 estradiol hémisuccinate via an arm spacer, the dioxadodécanodiamine, via the formation of bonds amides, was carried out by comparing the effectiveness of the activators of acid function benzotriazolyl-N-oxytris-(diméthylamino) phosphonium (BOP), dicyclocarbodiimide (DCC), N (3-diméthylaminopropyl)-éthylcarbodiimide (EDC) and 1-hydroxybenzotriazole (HOBT). In the third time the arm spacer, dioxadodécanodiamine which measures 16 Angstrom was substituted by four different arms length, 7. 4; 30; 38 and 76 Angstrom, the physicochemical properties (UV-visible absorbtion, fluorescence, generation of singulet oxygen) of the 5 conjugates were characterized. The photocytotoxic activity, as well as the cellular penetration towards human breast cancer cells (MCF-7) of the different conjugates were studied. The length and the lipophilicity of the arm spacer are limiting factors to the photocytotoxic activity. The E-RB (16 Angstrom) conjugate show a photocytotoxic activity 13 times superior to that of the Rose Bengal, the E-RB (7,4 Angstrom) conjugate is 6 times superior to the Rose Bengal in term of photocytotoxic activity, the E-RB (30 Angstrom) and E-RB (38 Angstrom) conjugates are 2. 5 times superior to the Rose Bengal, the E-RB (70 Angstrom) conjugates has a photocytotoxic activity similar to Rose Bengal. The images carried out in confocal microscopy showed that the E-RB (16 Angstrom) conjugate targets the nucleus of the human breast cancer cells (MCF-7). The others conjugates, just like Rose Bengal are excluded very quickly from the cancer cells
Debord, Jean. "Relation structure chimique-activité biologique pour quelques phosphoramides et benzamides." Poitiers, 1988. http://www.theses.fr/1988POIT2331.
Full textImbert, Daniel. "Nouveaux ligands à charpente tripodale carbonée en vue de la complexation du fer en milieu hydrophile ou lipophile." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10112.
Full textLoew, Martin. "Lipophilic nucleic acids." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/16251.
Full textLipid membranes are versatile tools for the spatial organization of biomolecules. On one hand, lipid vesicles represent enclosed compartments to maintain chemical environments and allow the efficient entrapment of substances. On the other hand, lateral inhomogeneous membranes provide the two dimensional sorting of membrane-bound compounds. In this work, lipophilic nucleic acids were used to build multicompartment systems based on lipid membranes by the controlled assembly of vesicles and the domain specific functionalization of inhomogeneous membranes. Three dimensional architectures of vesicles were formed by the sequential assembly of vesicles on layer-by-layer coated particles. Upon binding of the vesicles to the particles the vesicles remained stable – they did not fuse neither became leaky. Molecules could be entrapped inside the vesicles and released on demand. It was shown that the vesicles assembled on a particle can be transported to a defined destiny using an optical tweezer. Thus, the targeted delivery and the release of encapsulated molecules on site was achieved. It was also shown that vesicles immobilized on the particles can be fused by remote control, resulting in a mixing of membrane associated compounds. Different lipophilic nucleic acids were arranged in two dimensional patterns by incorporation into domain-forming vesicles. Cholesterol-modified DNA revealed an equal distribution to both domains in liquid-liquid phase-separated membranes, whereas palmitoylated peptide nucleic acid partitioned into the liquid-ordered domain, which resembles lipid rafts of cellular membranes. Using the palmitoylated peptide nucleic acid and tocopherol-modified DNA both domains of liquid-liquid phase-separated vesicles were functionalized with different DNA recognitions sites. Both constructs could be mixed and separated by temperature control.
Babin, Victor. "Conception de nouveaux agents iodés pour l'imagerie TEMP des récepteurs 5-HT4." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC244/document.
Full textAlzheimer’s disease is a neurodegenerative disorder affecting almost 50 millions people in the world. Even if the biological mechanisms implied on this pathology are known, no treatments stop or reverse its progression. Serotoninergic receptor 5-HT4R is one of the incriminated target and many ligands have been synthesized in order to develop an efficient treatment but a functionnal study of the brain is impossible. That’s why, development of efficient radiotracers is essential for the in vivo evaluation of new drugs targeting 5-HT4R and also for investigation of the receptor involvement in a variety of neurodegenerative and neuropsychiatric disorders. Starting from previsous studies made in the laboratory, a new generation of ligands, focused on diazaphenanthridine scaffold and with reduced lipophilicity, have been designed. Various hydrophilic functions have been introduced and 25 new ligands have been synthesized and biological assays have been realised. Five of this compounds have been radiolabeled and the in vitro imaging experiments on human slice brain showed the ability of the new « hit » compound to move the radioligand of reference and to label the 5-HT4R.Due to the difficulties encountered to the synthesis of tin precursors for the radiolabeling, a new strategy of radioiodation has been developed based on palladium mediated C-H activation. Using first N-tosylbenzamide as directing group for the proof of concept, the scope of this methodology have been enhanced to about fifteen directing groups. Finally, the C-H radioiodation have been applied to more complex biological molecules
Le, Solleu Hervé. "Etude de l'interaction Ligand-Récepteur par les méthodes de modélisation Moléculaire : application aux antagonistes du Facteur d'Activation Plaquettaire(PAF)." Bordeaux 2, 1996. http://www.theses.fr/1996BOR2B001.
Full textLabat, Laurence. "Relations structure-activité des dérivés arylpropioniques antiinflammatoires non stéroi͏̈diens appliquées à leur liaison aux protéines plasmatiques et à leur liaison aux tissus." Bordeaux 2, 1997. http://www.theses.fr/1997BOR2B005.
Full textPalmer, Simon Richard Faunch. "Electroanalytical sensors using lipophilic cyclodextrins." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4753/.
Full textMajid, Samia. "Synthèse, marquage à l'iode et comportement biologique de [beta]-bloquants potentiels." Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE10074.
Full textBaker, Neil D. "Lipophilic antifolates as potential antipsoriatic agents." Thesis, Aston University, 1989. http://publications.aston.ac.uk/12569/.
Full textAli, 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
Pust, Tim. "Lipophile fluoreszierende Nanostrukturen in hydrophiler Phase." Diss., lmu, 2009. http://d-nb.info/1000905438/34.
Full textThach, Ut Dong. "Echanges d’anions sur ionosilices : de l'élaboration des matériaux aux études physicochimiques et leurs applications en séparation et catalyse." Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTT239/document.
Full textThe objective of this thesis is the development of new anion exchangers based on ionosilica materials. Various materials containing ammonium groups were synthesized by template directed hydrolysis-polycondensation reactions starting from silylated ammonium precursors. Solids displaying different textures, architectures and morphologies were obtained via the modifications of reaction parameters, such as the nature of the used surfactant. Besides the standard structural and textural characterizations (N2 adsorption, XRD, TEM / SEM), we focused on a more detailed physico-chemical analysis of these original and innovative materials. Ionosilicas show an unusually high hydrophilicity compared to classical mesoporous silica or organosilicas of the PMO-type (Periodic Mesoporous Organosilica). Furthermore, the hydrophilicity of ionosilicas can be finely tuned either by the use of various ammonium precursors or the incorporation via exchange of hydrophobic anions. Finally, we used these new anion exchangers for the removal of various anionic species in aqueous media. Our studies show that ionosilicas are highly efficient anion exchanger displaying high capacity for the adsorption of Cr (VI) (up to 2.5 mmol g-1). These materials exhibit also high capacity of iodide combined with high radiolytic stability for radionuclides uptake. Similar results were obtained for organic anionic pollutants, e.g. drugs (diclofénac, sulindac and p-aminosalicylate) and dyes (methyl orange). Besides the high potential of these materials in separation processes, this study gives interesting insights in the materials morphology through the nearly complete accessibility of the cationic sites. All these features make ionosilicas materials of choice for solid-liquid separation processes in water treatment, depollution of industrial wastewater, the nuclear fuel cycle or catalytic support
Brückner, Erik. "Solubilisierung lipophiler Substanzen durch Phospholipidvesikel." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=96273103X.
Full textCroughton, Karen. "Novel pharmacology of the lipophilic antifolate methylbenzoprim." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368236.
Full textGramigna, Lucia <1986>. "Lipophilic nucleosides: studies toward self-assembled functional materials." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6397/.
Full textPaetz, Christian. "Synthese und Untersuchung lipophiler Platinverbindungen." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97251712X.
Full textBoff, Bastien. "Synthesis, physicochemical and biological evaluation studies of ruthenium(II) and osmium(II) anticancer organometallic complexes." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00796216.
Full textXavier-Junior, Francisco Humberto. "Systèmes disperses pour l’administration orale de paclitaxel à base de microemulsion et de nanocapsules mucoadhesives contenant de l’huile de copaïba." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA114810/document.
Full textAnticancer drug are still mainly administered by the parenteral route. Oral delivery is limited the physicochemical properties of drugs and physiological. Systems based on lipids and polymeric nanoparticles may overcome these limitations. The aim of our project was to develop dispersed systems containing copaiba oil in their internal phase as vehicle for oral administration of paclitaxel, an anticancer drug, paclitaxel. The work was carried on in three parts. At first, methods of analysis of copaiba oil and of dosage of paclitaxel in this oil were developed and validated based on gas chromatography and HPLC respectively. Then, copaiba oil/water microemulsion was formulated from a new approach based on the pairing of chemical properties of the oil components and the surfactants. Stable microemulsion containing remarkably high amount of copaiba essential oil (volume fraction 19.6%) and a low surfactant concentration (13.7%) were obtained and could incorporate paclitaxel. Finally, an experimental design approach was proposed to develop mucoadhesive nanocapsules encapsulating copaiba oil, paclitaxel and that can be labeled with a fluorescent. These systems were tested for their ability to concentrate paclitaxel on the gut mucosa by evaluating their mucoadhesion using a ex vivo model based on the Ussing chambers. The nanosystems proposed in this work are ready for an evaluation for their capacity to deliver this anticancer drug by the oral route