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Showing 1 to 20 of 72 for “"amphiphiles"”.
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Synthèse de calix[4]arènes-cyclodextrines amphiphiles
… telle structure permet la formation d'entités amphiphiles de complexes d'inclusion avec des médicaments dans leurs sites actifs ou l'augmentation de leur solubilité. L'ensemble formé présente la cavité hydrophobe de la β-cyclodextrine, la partie calix [4] arène-couronne étant plus lipophile, …
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Self-assembly of helical ribbons from chiral amphiphiles
The study of the self-assembly of helical structures has been motivated by their newly found biological and technological importance. In many systems, helical ribbons are precursors to the formation of tubules, which may be used in the controlled release of drugs or as templates for micron scale …
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Synthesis, Characterization, and Micellar Properties of Dendritic Amphiphiles
Two new homologous series of amphiphiles–five long-chain, three-headed amphiphiles [3CCb14, 3CCb16, 3CCb18, 3CCb20, 3CCb22; CH3(CH2)n-1OCONHC(CH2CH2COOH)3, n = 14, 16, 18, 20, 22], and six branched-chain, three-headed amphiphiles [3CCb1(7,7), 3CCb1(8,8), 3CCb1(9,9), 3CCb1(10,10), 3CCb1(11,11), …
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Self-assembly of inorganic nanoparticle amphiphiles for biomedical applications
… My dissertation is focused on the design of NP amphiphiles (NPAMs) and the use of NPAMs as building blocks to construct polymer-inorganic hybrid materials. The NPAMs are made from NPs surface-grafted with amphiphilic block copolymers (BCPs). In this way, the NPAMs synergistically combine the …
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Geometric and optical transformations of supramolecular host-guest amphiphiles
Molecular self-assembly has been an area of recent interest due to its application in a variety of important contexts including drug delivery, regenerative medicine, energy applications, and others. Simultaneously, host-guest chemistry provides a robust and powerful mechanism for inducing switching …
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RGD based peptide amphiphiles as drug carriers for cancer targeting
… to α v β 3 integrin overexpressing cancers. Amphiphiles composed of conjugates of different analogs of RGD (linear, cyclic or glycosylated) and aliphatic fatty acid with or without 8-amino-3,6-dioxaoctanoic acid (ADA) as linker were synthesized and characterized. The amphiphiles exhibited …
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Synthesis and Characterization of Polyhedral Oligomeric Silsesquioxane (POSS) Based Amphiphiles
… extension of these studies has been POSS-based amphiphiles and thin film coatings. Studies at the air/water (A/W) interface have shown that trisilanol-POSS derivatives are amphiphilic and form uniform Langmuir films, whereas closed-cage POSS derivatives are hydrophobic and aggregate. In previous …
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Synthesis and Characterization of Polyhedral Oligomeric Silsesquioxane (POSS) Based Amphiphiles
… of these studies has been working on POSS-based amphiphiles and thin film coatings. Studies at the air/water (A/W) interface have shown that trisilanol-POSS derivatives are amphiphilic and form uniform Langmuir films, whereas closed-cage POSS derivatives are hydrophobic and aggregate. In this …
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Synthesis, self-assembly, and cross-linking of polymer amphiphiles in-situ
Includes bibliographical references.
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Synthesis, Characterization, and Antimicrobial Activity of Water-soluble, Tri-carboxylato Amphiphiles
… of biological activity in a homologous series of amphiphiles have shown a cut-off effect, where the biological activity increases with an increase in chain length, after which the activity plateaus or weakens. One factor suspected to cause this problem is solubility issues. We have designed …
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Synthesis, characterization, and evaluation of photo-active amphiphiles for gene delivery applications
Gene therapy has the potential to alter the landscape of medical therapeutic techniques by offering a means of introducing or knocking out genes to treat a number of diseases. Both viral and nonviral vectors are currently being utilized in gene therapy clinical trials. To overcome the obstacles in …
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Phenylene Vinylene Based Supramolecular Materials: Triblock Rodcoil Molecules and Highly Branched Amphiphiles
… formation. More recently, a series of novel amphiphiles were designed based on block copolymeric dendrimers and their self assembly in aqueous solution was investigated. The amphiphiles contain lysine derivatives as the hydrophilic segments and phenylene vinylene as the rigid hydrophobe. The …
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Synthesis of guanidinium-functionalized amphiphiles for the exploration of chaotropic supramolecular nanoribbons
… before breaking down. Aromatic amide (aramid) amphiphiles, which can form strong hydrogen bonding and pi-pi stacking between them, self-assemble into stable, mechanically strong nanofibers, in stark contrast to the assemblies that precede them. This study seeks to functionalize the aramid …
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Synthesis, Characterization, Critical Micelle Concentration and Antimicrobial Activity of Two-headed Amphiphiles
… of homologous series of two-headed, long-chain amphiphiles (the 2CCbn series, where n = 16, 18, 20, 22, 30, 5α-cholestan-3Ã -ol). The 2CCbn series was synthesized in five steps. The first step involves a reaction of nitroethane and two equivalents of tert-butyl acrylate to form nitrodiester by …
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Synthesis, Characterization, Critical Micelle Concentration and Biological Activity of two-Headed Amphiphiles
… homologous series of five long-chain, two-headed amphiphiles [2CAm13, 2CAm15, 2CAm17, 2CAm19, 2CAm21; CH3(CH2)n-1CONHC(CH3)(CH2CH2COOH)2, n = 13, 15, 17, 19, 21]. The synthesis of the 2CAmn series was accomplished in four steps. The first step involves a reaction of nitroethane and two equivalents …
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Impact of Amphiphiles in Cellulase Stabilization, Recycling and Ethanol Production from Pretreated Biomass
… And the potential mechanisms of action of these amphiphiles and their economical viability were inspected. Formation of irreversible-bound monolayers of casein, on hydrophobic surfaces was shown to alleviate the de-activation of protein of interest. Application of colloidal proteins of casein on …
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