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 630 for “"Hydrogels"”.
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Biomimetic hydrogels under stress
Contains fulltext : 225040.pdf (Publisher’s version ) (Open Access)
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Ocular Compatibility of Hydrogels
The primary objective of this research was to investigate the effects of long term wear on the ocular compatibility of hydrogel contact lenses with reference to the incidence of deposits. A number of spoilt lenses, representative of a wide range of lens chemistries were examined. A variety of …
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Hydrogels for dermal applications
This thesis is concerned with the development of hydrogels that adhere to skin and can be used for topical or trans dermal release of active compounds for therapeutic or cosmetic use. The suitability of a range of monomers and initiator systems for the production of skin adhesive hydro gels by …
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Cellular interactions with hydrogels
… backbone chain. This effect is most apparent on hydrogels containing methacrylic acid. Dynamic contact angle measurements confirm sequence distribution irregularities and demonstrate the mobility of surface groups. Incorporation of NVI or DEAEMA into the hydrogels does not affect the mobility of …
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Novel hydrogels for keratoprosthesis
Hydrogels may be described as cross~linked hydrophilic polymers that swell but do not dissolve in water. They have been utilised in many biomedical applications, as there is the potential to manipulate the properties for a given application by changing the chemical structure of the constituent …
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Mechanics of Composite Hydrogels
Composite hydrogels – which consist of fillers in a swollen polymeric matrix – are ubiquitous structural components of biological materials, biomedical devices, food, and consumer products. The mechanical properties of composite hydrogels are pivotal for their respective applications, and are …
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Novel high water content hydrogels
Hydrogels may be described as cross-linked hydrophilic polymers that swell but do not dissolve in water. The production of high water content hydrogels was the subject of investigation. Based upon copolymer compositions that had already achieved commercial success as biomaterials, new monomers were …
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Dynamics of super-absorbent hydrogels
This thesis explores the behaviour of hydrogels, a broad class of materials comprising a hydrophilic polymer scaffold surrounded by adsorbed water molecules, potentially comprising over 99% water by volume. In general, hydrogels are soft, elastic, porous materials that can swell or dry to a …
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DNA scaffolds for functional hydrogels
… can be tailored to build thermally reversible hydrogels with target binding sites. These hydrogels exhibit highly selective binding properties due to the specificity of DNA and also provide an aqueous environment for various reactions to happen within the network constraints. Hence, a careful …
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Hindered transport in composite hydrogels
… through synthetic, two-fiber, agarose-dextran hydrogels at very small or very high Pe, respectively. By comparing diffusion and convection in the synthetic hydrogel with corresponding measurements in isolated rat GBM, further insight regarding the structure responsible for transport through the …
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Sustainable Hydrogels for Water Treatment
… in low-footprint, resource-efficient processes. Hydrogels (polymer gels containing a significant quantity of bound water) are an ideal platform for the development of new functional materials to bind and degrade micropollutants. Water-based chemistries and a large library of commoditized …
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Granular Hydrogels for Localized Nanoparticle Delivery
… upon glutathione–poly(ethylene glycol) (GSH–PEG) hydrogels previously designed for protein and small-molecule delivery. This work is based on the hypothesis that exploiting GSH-mediated interactions between the hydrogel network and nanoparticle surfaces can achieve controlled release and enhanced …
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Biofunctional hydrogels for skeletal muscle constructs
… of soft robotics. To do this, 3D, swollen hydrogels were chosen to provide tailorable platforms that support cellular activities to similar extents as native matrices. For this work, we utilized an engineered bio-functionalized poly(ethylene glycol)-(PEG)-hydrogel with maleimide (MAL) …
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Hydrogels containing linear and cyclic polyethers
Hydrogels are a unique class of polymer which swell, but do not dissolve in, water. A range of 2-hydroxyethyl methacrylate based copolymer hydrogels containing both cyclic and linear polyethers have been synthesised and are described in this thesis. Initially, cyclic polyethers were occluded within …
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Hydrogels for Biomacromolecule Immobilization and Sensing
… centers on the development of stimuli-responsive hydrogels that have utility for pH-responsive valves, biomacromolecule sensing, irreversible biomacromolecule immobilization, and reversible biomacromolecule immobilization. Each system discussed has its function derived from a novel fabrication …
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Heparanoid hydrogels for cardiovascular tissue regeneration
… especially when delivered as injectable hydrogels that can form in situ. This project focused on developing Hep and HS hydrogels for localized GF delivery. Hep and HS were acrylated, characterized and crosslinked with PEG tetra-thiols, either directly (10m% Hep/HS-Ac, Type 1) or by …
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