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 11 of 11 for “"Hydrogel beads"”.
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Application of chitosan-carbon nanotube hydrogel beads composite in the removal of antibiotic compounds and perfluoroalkyl substances from aqueous solution
This thesis is submitted for the fulfilment of academic requirements for the degree of Doctor of Engineering: Chemical Engineering, Durban University of Technology, Durban, South Africa, 2025.
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The Development of Chitosan Microspheres for Use as Agrochemical Delivery or Agropollutant Adsorption Systems
The aim of this thesis was the development of a hydrogel bead agrochemical delivery system for the nitrification inhibitor, dicyandiamide (DCD) and the development of a hydrogel bead adsorption system for the herbicide, paraquat. The hydrogel bead was based on the biopolymer chitosan which was …
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Preparation and Characterisation of Alginate Composite Beads and Investigations into their Potential Use in Environmental Applications
… inhibitor (NBPT) from different calcium alginate hydrogel beads. Four bead types were chosen for this study, calcium alginate, charcoal-loaded and bentonite-loaded calcium alginate, and polypyrrole-coated calcium alginate beads. The surface morphology of the beads was investigated using SEM. The …
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Novel polymers for artificial liver support systems
… the purpose-design, synthesis and evaluation of hydrogel particulate polymers for use in artificial liver support systems. The introductory chapter concentrates on various aspects of liver functions, diseases of the liver, and the role that hydrogels can play to improve the condition of patients …
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Solid Dispersions in Medium-Insoluble Hydrogels for Enhancing the Solubility and Bioavailability of Poorly Soluble Drugs
… Dispersions (ASDs) based on medium-insoluble hydrogels is an emerging approach showing promise for tackling solubility related oral bioavailability problems. However, critical parameters important to the design of these ASDs have not been fully elucidated. Thus, the first part of the present …
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Generating artificial metalloenzymes containing new-to-nature organometallic cofactors via controlled ligand exchange and microfluidic screening technologies
… phenotype is achieved by covalent attachment to hydrogel beads, mitigating the possibility of catalytic poisoning when using an *in vivo* approach. The concluding chapter summarises the key results of this work and gives perspective on potential future developments.
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Evaluation of glucose supplement provided with enrichment to reduce hunger induced stress in gestating sows
… effect of glucose supplementation via alginate hydrogel beads (AHBs) using enrichment using measures of behavior, farrowing performance, and physiology of feed restricted pregnant sows. First parity pregnant sows (N =36) with an average weight of 200 kg were randomly assigned into three …
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Microfludic point of care platforms for the detection of viruses, proteins, and nucleic acids
… detection platform that used the capture of beads between an entrance and exit count in order to detect the presence of specific biomarkers in a biological solution. Multiplexing capabilities were incorporated onto this existing platform by utilizing different beads with distinct electrical …
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Microfludic point of care platforms for the detection of viruses, proteins, and nucleic acids
… detection platform that used the capture of beads between an entrance and exit count in order to detect the presence of specific biomarkers in a biological solution. Multiplexing capabilities were incorporated onto this existing platform by utilizing different beads with distinct electrical …
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Biophysical approaches to single-cell characterization
… in single cells by capturing cells in hydrogel beads and arraying the hydrogels on a series of microfluidic traps. Each hydrogel acts as a scaffold to display the captured transcriptome of individual cells. Transcript abundance measurements across a panel of genes can then be quantified …
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High-throughput protein engineering tools for efficient exploration and quantitative mapping of protein fitness landscapes
… By replacing single cells with monodisperse hydrogel beads displaying individual enzyme variants at precisely controlled concentrations and encoding their corresponding genetic sequences, the platform eliminates two limitations that are inherent to cell-based microfluidic screening: …