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Showing 1 to 20 of 683 for “"water-soluble"”.
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Towards Water-Soluble Peroxyl Radial Clocks
… we present our work towards the development of a water-soluble peroxyl radical clock, such that the kinetics of reactions of peroxyl radicals with water-soluble reductants can be determined. To do so, we have designed β,γ-unsaturated peroxyesters analogous to those we have previously developed, …
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Studies on water-soluble taxol derivatives
… mechanism of action. Unfortunately, taxol is not water-soluble and therefore must be given in conjunction with emulsifying agents. Modifications of taxol were carried out in order to prepare water-soluble taxol derivatives. The C-2’ hydroxyl group of taxol was substituted with various groups to …
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Fabrication of water-soluble gold nanoparticle aggregates
… with a polar head group. A two-phase test of the water-solubility indicated that the aggregates were fully soluble. TEM images showed a slight increase in size, though similar morphology to the insoluble aggregates. The ability to induce water solubility in the aggregates opens up many potential …
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Conformational-configurational characteristics of water-soluble acrylamide polymers
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1991.
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Synthesis and hydrogenation of iridium complexes with bidentate and water-soluble phosphine ligands: developing novel water-soluble catalysts for hydrogenation of unsaturates
… These compounds have been found to be both water soluble and reactive towards molecular hydrogen at room temperature, qualities that make them ideal for serving as catalysts for the aqueous hydrogenation of unsaturates. Water-soluble ligands were also allowed to react with [Ir(COD)Cl]₂. In …
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A study of selected water-soluble hydrazyl free radicals
… RNS/ROS are free radicals. In response, a stable water-soluble free radical able to react with other free radicals could, in theory, act as a free-radical scavenger in vivo and detect, decrease or eliminate harmful free-radical activity. Salts of water-soluble analogs of the well-known free …
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Synthesis of symmetric and asymmetric water-soluble porphyrin derivatives
Novel symmetric and asymmetric water-soluble tetrabenzoporphyrin are synthesized in relatively good yields. These compounds are synthesized by the condensation of butanopyrrole with several aldehydes that contain masked water solubilizing groups followed by metal insertion, oxidation and …
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ENGINEERING WATER-SOLUBLE VARIANTS OF THE SINGLE-SUBUNIT OLIGOSACCHARYLTRANSFERASE
… with high levels of expression to generate water-soluble variants of the bacterial OST. Specifically, we designed several OST chimeras where the N-terminus of the OST is fused with the amphipathic protein including engineered human apolipoprotein A-I. Using E. coli culture as an expression …
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Water Soluble Phosphines, Their Transitional Metal Complexes, and Catalysts
… use of special properties and effects of water as a solvent, and low environmental impact. For higher olefins (* C6), the reaction suffers low activity due to low water solubility of higher olefins. Tricesium analog of TPPTS, m,m,m-trisulfonated triphenylphosphine, was synthesized and …
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Factors involved in the oxidative gelation of water-soluble pentosans
Call number: LD2668 .T4 GRSC 1988 M66
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Water-Soluble Redox Materials and Their Applications in Aqueous Batteries
Ever-increasing worldwide energy requirements and concerns on global warming have stimulated the development of renewable energy resources. However, intermittency of renewables is the biggest challenge for their widespread application. Advanced large-scale energy storage technologies are thus …
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Simulation Study of Warm VAPEX Process Using Water-soluble Solvent
… Thermal dynamic properties of a bitumen-DME-water system were modelled and validated with experimental measurements. The performance of hot DME VAPEX is compared with a SAGD process in terms of an oil rate, cumulative oil production and energy input. Simulation results indicate that the oil …
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Solubility enhancement of poorly water soluble drugs using liposome technology
… influence of the physical properties of poorly water-soluble drugs on bilayer loading. Initial work investigated on the solubilisation of ibuprofen, a model insoluble drug. Drug loading was assessed using HPLC and UV spectrophotometric analysis. Preliminary studies focused on the influence of …
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Ligand modification and catalysis : water-soluble phosphines and chiral cyclopentadienes.
Thesis. 1977. Ph.D.--Massachusetts Institute of Technology. Dept. of Chemistry.
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New water-soluble porphyrins for oxygen sensing in protein-based materials
… to avoid leaching and cell uptake, and (3) water-solubility to allow conjugation in aqueous solutions. We first focused our attention on the synthesis of tetra meso-substituted porphyrins bearing a carboxylic group as the conjugatable function on one of the beta-positions of the macrocycle. …
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Synthesis of organically capped and water soluble metal sulfide semiconductor nanoparticles
Well-defined faceted shaped organically and water soluble metal sulfide nanoparticles have been successfully synthesized using a hybrid solution based high temperature colloidal route in the presence of organic surfactants as both stabilizers and crystal growth modifiers. The structure and …
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