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 10 of 10 for “"osmium tetroxide"”.
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The electrolytic reduction of osmium tetroxide in perchloric acid solution
… is a study involving some of the chemistry of osmium tetroxide in perchloric acid solution. The research was originally instigated from a seminar report on the ruthenium III thiocyanate complex ion which was studied in perchloric acid solution. The seminar report given by Craig Townsend …
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Thiocyanate complexes of osmium
<p>Osmium is a hard grey brittle metal which scratches glass. It has a melting point of 2700[degree]C, and a specific gravity of 22.4, which is greater than any other known substance. The grey color of osmium resembles the grey color of iron and ruthenium. Osmium was discovered in 1803 by Tennant …
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The Synthesis of (+/-)-Presilphiperfol-7(8)-Ene and Tertiary Tricyclo(5.3.1.0(4,11))undecanols Related to Presilphiperfolan-8-Ol
… investigated. Reaction of nor-PSP-7(8)-ene with osmium tetroxide afforded nor-presilphiperfolan-7a,8a-diol, which underwent pinacol rearrangement to 8,10,10-trimethyltricyclo[6.2.1.01,5]undecan-11-one. The same ketone was formed directly by reaction of nor-PSP-7(8)-ene with chromyl chloride. The …
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A Fiber Count and Caliber Spectral Study of the Cat Ulnar Nerve and Some of Its Branches
… of the rat, cat, cow and pigeon stained with osmium tetroxide or pyridine silver, that there exists a critical axis cylinder diameter, between 1-2 m , above which the cylinder is myelinated and below which it is unmyelinated. Schwarzacher (154) from his studies on various human motor and …
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Developing test strips for naked-eye detection of alpha-hydroxy acids using indicator-displacement assays: an application of molecular recognition
… of maleic acid and fumaric acid catalyzed by osmium tetroxide in water, and the hydrolysis of D-dimethyl tartrate. The assay employed a receptor that has 1,3,5-trisubstituted-2,4,6- triethylbenzene scaffold incorporating boronic acid and guanidinium moieties as functional sensing components. …
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Characterization of alginate scaffolds using X-ray imaging techniques
… even without any staining material, such as osmium tetroxide (OsO4). These three pieces of research work show the potential in applying the emerging X-ray imaging in soft tissue engineering.
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Synthesis and Surface Characterization of Silica-Polypeptide Composite Particles
… was visualized by using positive staining with osmium tetroxide (OsO4) vapors when the particles were dispersed in pyridine. The stained composite particles were observed using transmission electron microscopy (TEM). They appear as spheres with a light corona around them. The use of an internal …
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Morphological and Neuroanatomical Changes Associated with the Induction of Neurodegeneration and Life Span Reduction in Drosophila melanogaster by Glia Targeted Expression of Cdh1/Rap/Fzr, An Activator of the Anaphase Promoting Complex
… were then rinsed in buffer and post-fixed in osmium tetroxide. After post-fixation, the brain samples were then dehydrated in graded series of different concentrations of ethanol followed by a 5 minute rinse in propylene oxide and then incubated in 100% resin containing Embed 812, Dodecenyl …
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The Localization of Glucose-6 Phosphatase in Developing Rat Liver: A Histochemical and Biochemical Study
… buffer, pH 6.6. The slices were post-fixed in osmium tetroxide, oriented during embedding, and sectioned perpendicular to their length so that the complete width of a slice could be examined. Observations were confined to the outermost layers of cells where consistent results implied adequate …
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Neue cycloaliphatische Polymere und Polymerdispersionen durch übergangsmetallkatalysierte Polymerisation cyclischer Olefine und polymeranaloge Reaktionen
Ziel der Dissertation war die Untersuchung der ringöffnenden Metathesepolymerisation (ROMP) von Cycloolefinen in organischen und wässrigen Reaktionsmedien. Durch Kombination von ROMP und polymeranaloger Reaktionen, konnte der Zugang zu neuen thermooxidaktiv beständigen Polymeren, …