Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Water-dispersible"”.
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Sizing and characterization of carbon fibers with aqueous water-dispersible polymeric interphases
… to uniformly coat carbon fiber tow with water-soluble and dispersible polymers. Few such devices have been developed for use in academic settings because of the processing complexities presented by the aqueous coating system. Due to the high surface tensions of the aqueous solutions, …
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Surface Functionalized Water-Dispersible Magnetite Nanoparticles: Preparation, Characterization and the Studies of Their Bioapplications
… fabrication route and directly produces water-stable magnetite-silica hybrid materials with surface availability for subsequent modifications.</p> <p>In addition to polyalcohol, the potential of polyamine in the preparation of water-soluble magnetite nanoparticles with amine surface …
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Colloidal CdSe quantum nanowires: Synthesis, photo-induced photoluminescence enhancement and fabrication of core/shell, water-dispersible structures
… were also synthesized to achieve the water-dispersibility.
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Studies of the mechanisms of stabilization of organic matter in semiarid soils
… consistently different for the ultrasonically dispersible and readily water-dispersible fine soil particle-sizefractions. Carbon contents of the fine fractions ultrasonically dispersed from water-stable aggregates of >50 μm equivalent spherical diameter (ESD) were greater than those from …
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Functionalized Graphene: Characterization and Mechanical Reinforcement
… the compatibility necessary for inclusion in a water dispersible polyurethane matrix. Functionalized graphene was well dispersed in these systems and provided storage modulus mechanical reinforcement of 150% at 1.0% loading which is higher than the level of reinforcement reported in comparable …
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Vitamin A and glycoproteins of rat corneal epithelium
… Topical application for one hour in vivo of water-dispersible vitamin A palmitate to corneas of deficient rats resulted in a stimulation of glycoprotein/glycopeptide synthesis upon subsequent incubation in vitro. Upon fractionation of glycopeptide prepared from vitamin A-deficient control and …
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Vitamin A depletion and repletion in thoroughbred horses
… the recommended level (A), the equivalent in water dispersible β-carotene (B), or a placebo (C). Supplementation continued for 20 months during which the vitamin A status was assessed every 60 days in the mares, and at birth in the neonates. During both the depletion and the repletion phase …
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Synthesis of Amphiphilic Block Copolymers for Use in Biomedical Applications
… known for its DNA binding efficiency but the water solubility of the resulting DNA/polymer complex is limited. Addition of a PEO block is directed towards the formation of a water dispersible DNA/copolymer complex. Dynamic light scattering of the PEO-b-PEOX and PEO-b-PEI block copolymers …
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Preparation and characterization of multifunctional chitosan microparticles for lung delivery
… The iron oxide nanoparticles were made water dispersible by adding an oleic acid-poloxamer coat to the surface of the iron oxide particles. These nanoparticles were incorporated into chitosan microparticles along with gemcitabine by spray drying using a Buchi Mini Spray dryer B-290. The …
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Multiscale Design And Life-Cycle Based Sustainability Assessment Of Polymer Nanocomposite Coatings
… The in-silico paint resin system is a water-dispersible acrylic polymer with hydrophilic nanoparticles incorporated into it. The nano-scale atomistic and micro-scale coarse-grained (CG) level simulations are performed using molecular dynamics methodology to study several structural and …
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Design of functional colloidal magnetic nanoparticles for biomedical applications
… inorganic coatings in order to convert them into water dispersible systems. To this end, a multi-technique approach is used. A first structural analysis is performed by wide-angle X-ray Diffraction to obtain information about the crystalline phases and the crystallite size (coherent domain). …
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The Effect of Chemistry and Network Structure on Morphological and Mechanical Properties of Diepoxide Precursors and Poly(Hydroxyethers)
… transition temperatures, from 71°C to 92°C, and water absorption, from 1 wt % to 5.5 wt %, due to the polar nature of the phosphine oxide bond. Higher char yields were also observed with the addition of the phosphorus, 27 wt % compared to 11 wt % for bisphenol-A epoxy networks. The bisphenol-A …
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Design of Functional Polyesters for Electronic and Biological Applications
… delivery vectors. Melt polycondensation produced water dispersible polyesters which bound deoxyribonucleic acid at low N/P ratios. The v polyplexes showed stability in water over 24 h and no cytotoxic effect on human cervical cancer cells (HeLa). A luciferase transfection assay revealed the …