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 20 of 119 for “"Immobilisation"”.
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The Immobilisation of Radioactive Wastes
… Section 2 reviews the choice of cement as the immobilisation system for low and intermediate level wastes. The desire to improve cement based characteristics is discussed and the technique of incorporating polymers is reviewed. The importance of leaching characteristics is highlighted and …
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Immobilisation von Enzymen auf sphärischen Polyelektrolytbürsten
In dieser Arbeit wurde die adsorptive Immobilisation von Enzymen auf kolloidalen Partikeln untersucht. Diese Partikel bestehen aus Polystyrolkernen auf denen Polymerketten durch eine grafting from-Technik angeknüpft wurden. Sie werden als sphärische Polyelektrolytbürsten bezeichnet. Die Parameter …
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Graphite immobilisation in glass composite materials
… describes the use of glass materials for the immobilisation of irradiated graphite prepared by microwave, conventional and sparks plasma sintering methods. Several potential glass compositions namely iron phosphate, aluminoborosilicate, calcium aluminosilicate, alkali borosilicate and obsidian …
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Protein refolding via immobilisation on crystal surfaces
… of PCMC is a recently developed method for the immobilisation protein upon the surface of a watersoluble excipient (salt, amino acid or sugar) via a co-precipitation reaction in a water miscible organic solvent. These proteins can then be used as immobilised biocatalysts in both the aqueous and …
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Immobilisation of copper, chromium and arsenic on stabilised domestic refuse
The disposal of copper-chromium-arsenic, whether in solution or in combination with wood, has the potential to become a global problem. This chemical is commonly called CCA or Tanalith, and is classed as a waterborne wood preservative. Current global production of this class of chemicals is …
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The immobilisation of Thermus strain Rt41A proteinase and its use in peptide synthesis
… less than 10%. Stability towards pH increased on immobilisation, the greatest increase in half-life being approximately 12 fold at pH 7.0 at and 80 °C. Temperature activity profiles for both the free and immobilised enzymes were very similar when using either substrate. The stability of the …
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Immobilisation of Bio-molecules on Magnetisable Solid Supports for Applications in Bio-catalysts and Bio-sensors
A series of core and core-shell nanoparticles with superparamagnetic properties were synthesised and surface functionalised using three different amino-silanes by a chemical conjugation method. The functionalised nanoparticles were characterised and further modified by chemical conjugation with two …
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The synthesis and chemistry of new carbosilane dendrimers and their use in polymerisation catalysis
The immobilisation of homogeneous catalysts is an area of research that attracts a great dela of attention. The immobilisation of catalysts on organic polymers and on inorganic materisl such as silica is a well known strategy. Recently, dendrimers have also been used as support materials. In this …
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The effects of biochar on trace element and nutrient solubility in the presence of low-molecular-weight organic acids
… batch experiments examined the biochar-driven immobilisation of trace elements and nutrients with and without LMWOAs. Then, batch studies tested if biochar would reduce the LMWOA-driven solubilisation of trace elements and nutrients in soil. Later, rice husk biochar and LMWOA-activated rice …
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Preparation of a self-contained NADH co-factor recycling particle system
… recycling method. A few methods for the co-immobilisation of enzymes and co-factors have been developed. These systems are of interest as they offer the advantages of recycling the enzymes together with the co-factor, thereby enabling re-use. The immobilisation of enzymes also provides a …
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Characterisation of the hydantoin-hydrolysing activity of pseudomonas putida strain RUKM3s and development of biocatalyst for amino acid production
… purified for characterisation, stabilised by immobilisation, and applied as a biocatalyst for production of amino acids from 5-mono-substituted hydantoin substrates. Experiments were devised to optimise conditions for the production of RUKM3s biomass with high levels of hydantoin hydrolysing …
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Klinische Studien über die Immobilisation von Mantelpavianen (Papio hamadryas) unter Verwendung der "Hellabrunner Mischung" und über den postnarkotischen Einfluss von Atipamezol und Yohimbin im Vergleich zu Etilefrin als Aufwachbeschleuniger
The objective of the present study was to examine the effectiveness of the anesthetic combination "Hellabrunne mixture" ("HM" = approximately 125mg xylazine/ml and 100mg ketamine/ml) on hamadryas baboons, as well as the influence of various drugs over the time it took the baboons to wake up (their …
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Development and physiological characteristics of avian fast and slow contracting muscles
… during the first two weeks of ex ovo growth. Immobilisation in both positions caused the histochemically displayed activities of these enzymes to become reduced. 3. Biochemically assays for Mg 2+-activated myofibrillar ATPase (both a alone and total activity a+ b) activity were developed for …
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Detection and enrichment of cytochrome P450s using bespoke affinity chromatography and proteomic techniques. Development of chemical immobilisation and novel affinity chromatography methods, with subsequent proteomic analysis, for the characterisation of cytochrome P450s important in cancer research.
Introduction: Cellular membrane proteins, such as the cytochrome P450 enzyme superfamily (P450), have important roles in the physiology of the cell. P450s are important in metabolising endogenous molecules, as well as metabolising xenobiotic substances for detoxification and excretion. P450s are …
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Biosensor design utilizing particle-bound enzymes
… the analyte, simultaneous isolation and immobilisation onto silica carrier particles was achieved directly from lysate. In addition, the incorporation of a coloured fluorescent protein in the fusion enabled the protein production and immobilisation to be followed visually without …
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Printing protein-engineered paper for biosensors
… properties and reduce the cost of production and immobilisation of bioreagents onto paper. This thesis explores whether introducing digital printing into papermaking in combination with the recombinant protein production of paper-binding bioreagents could provide an accessible, scalable tool for …
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Investigations into the sensing capabilities of an electrochemical immunosensor employing polyaniline as a mediator species
… paste electrode used as a substrate for the immobilisation of antibody, and the subsequent competition assays of protein analytes. Chapter 1 is a literature review encompassing the field of electrochemical immunosensing. chapter 3 outlines work towards developing real-time imrnunosensors to …
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“Out with the old and in with the new” - A retrospective review of paediatric craniocervical junction fixation: indications, techniques and outcomes
… Traditionally, on-lay fusion with external Halo immobilisation has been used. Instrumented fusion offers intra-operative reduction and immediate stability. Methods: A retrospective review of a single surgeon’s prospectively maintained database was conducted for all cases of paediatric patients …
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Switchable biological surfaces
… properties such as wettability and bio-molecule immobilisation onto self-assembled monolayers (SAMs) has many potential biological and medical applications. The aim of this project was to produce mixed biotinylated peptide monolayers that are responsive to an electric potential, thus providing a …
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