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 63 for “"gelling"”.
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Structure, rheology and applications of thermally-gelling nanoemulsions
… a molecular-scale understanding of the thermally-gelling nanoemulsion system, we design a gelling platform that can accommodate a wide range of colloidal formulations and gelling nanoemulsions that are responsive to different external stimuli such as pH and ionic strength. Moreover, by using the …
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Injectable in situ Gelling Metronidazole System for Treating Jawbone Infections
… 205 µg/ml with R2 > 0.99. Six different in situ gelling delivery system were developed using either poly- DL-lactide (PLA) or chitosan and Pluronic F127/Pluronic F68. In vitro release of metronidazole from PLA-based in situ gelling system was significantly (p < 0.05) less than that from …
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A novel particle-based in situ gelling system for delivering hydrogen sulfide at a sustained rate for potential application in glaucoma and retinal neurodegeneration
… efficiency of a novel particulate-based in situ gelling system for delivering H2S at a sustained rate for longer period of time. Polycaprolactone-based microparticles loaded with a model H2S donors were prepared and characterized for size and surface charge. The size of the particles obtained was …
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In vivo generation of 'vaccination nodes' using injectable alginate hydrogels for cancer immunotherapy
… from tumors. We have developed injectable self-gelling alginate formulations for this purpose, enabling sustained release of soluble immunomodulatory factors from the gels and presentation of immobilized immunostimulatory factors inside the gels. The hydrogels injected into the back flanks of …
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Culinology applications to a convenient and economic frozen dinner set
… using various food science methods, such as gelling properties, use of the lactoperoxidase system, sensory analysis, and food engineering. The result is a frozen three-course meal that can be cooked at home but can rival the quality of an up-scale restaurant.
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Elongated fascicle-inspired 3D tissues consisting of high-density, aligned, optogenetically excitable muscle tissue using sacrificial outer molding
… that is solid at a low temperature, ii) release gelling agents from the sacrificial mold material after cellladen hydrogel is injected into fiber cavities, iii) generate a uniform axial tension between anchor points at both ends that promotes cell alignment and maturation, and iv) perfuse the …
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Ultrasound propagation in colloidal dispersions
… Measurements of a[alpha] and c using non-gelling aqueous kaolinite suspensions are shown to agree well with theory when the eccentricity and the interactions of particles are taken into account. For gelling aqueous bentonite suspensions, a[alpha] and c were found to be time-dependent over …
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Rheological and microstructural characterization of pea, lentil and almond protein gels
… The effects of protein concentration in the gelling solution (10%, 15% and 20%), ethanol content of the coagulation media (30%, 40%, 50%, 60%, 70% and 80%) and pH (2, 4 and 7) were considered. Plant proteins formed gels immediately upon contact within ethanol. Rheological measurements …
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A potential route to hydrogel multifunctionalization utilizing encapsulation of acrylate-conjugated streptavidin
… conjugated at various molar ratios, along with a gelling polymer under an ultraviolet (UV) lamp. Acryl group conjugation was confirmed through high performance liquid chromatography (HPLC) and mass spectrometry. Protein binding was assayed through the use of rhodamine-labeled streptavidin and …
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Evaporation rates from emulsions stabilised by surfactants and nanoparticles
… mass loss of the emulsions gelled by different gelling agents (colloidal particles and water-soluble polymers) show that the evaporation rates depend on the gelling agent. For high internal phase emulsions, evaporation rates of water from emulsions containing involatile oils have been studied. …
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Developing silica based Nanocomposites for dental applications using bombyx mori silk
… tetraethoxy silane (TEOS) to condense into gelling silk solutions or by adding pre-condensed silica nanoparticles (14-350 nm), prepared using a modified Stbber method. Silk solutions were characterised using viscometery, dynamic light scattering (DLS) and electrophoresis (SDS-PAGE).
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The rigor bond’s interaction with protein denaturation : effects on water-holding of myofibrils
… precipitation with the myofibrils improved the gelling properties. The PPi addition did not affect water-holding of myofibrils (P>0.05), suggesting that the rigor bonds don’t have a significant effect on water-holding of myofibrils after temperature-induced protein denaturation.
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Increased production of aligned cellulose nanofibrils using microfluidic mixture chambers
… task of aligning cellulose nanofibrils and gelling them together to create macroscale cellulose fibers, and this study seeks to test the limit of macroscale cellulose fiber production using this method. Using a volumetric flow rate of 1.1 x 10-7 m3 /s, which is over 100 times greater than …
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An Injectable Thermosensitive Hydrogel Potentially Used for Wound Dressing with Self-adhesive Properties
… because PNIPAM-based polymers can achieve fast gelling at body temperature. Additionally, the introduction of dopamine could provide self-adhesive property for wound dressing applications because of possible bonds with cells, tissues and inorganics. In this thesis, a series of PNIPAM-based, …
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Polyacrylamide and its derivatives for oil recovery
… superior property on increasing viscosity and gelling ability in the presence of crosslinkers, polyacrylamides has become the primarily selection for polymer flooding and gel treatment agent in enhanced oil recovery. Recent developments, performance, applications and limitations of …
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Strategies to improve non-haem iron absorption
… that alginate beads, containing calcium as a gelling agent, are not an effective delivery vehicle for soluble iron compounds. However, these findings should not rule out the potential use of alginates as a delivery system for iron, especially in diets containing high levels of phytate. Other …
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An Experimental Study on the Effects of Heat and Chemical Inhibitors on the Flow Behaviour of Waxy Crude Oils. The Effects of Heat and Chemical Inhibitors on the Rheological Properties of Waxy Crude Oils with regard to Pumping in Pipelines
… and the pour point depressant reduced the gelling temperature. OSR provided a check on CSR and confirmed the gelation temperature measured. CSR provided the yield stress measured, it also provided comprehensive data that can be used for theoretical modelling of this complex flow.
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Starch Source, Fraction, and Processed Form Affect in Vitro and in Vivo Digestion and Glycemic Responses in Dogs
… and other functional properties such as gelling, flavor encapsulation, and sweetening. Dog diets contain starch, derived predominantly from cereal grains, and incorporated through the use of extrusion technology. Although the dog is capable of deriving energy from these cereal grains and …
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New hydrogel forming thermo-responsive block copolymers of increasing structural complexity
… of cis-azobenzene units. The viscosifying and gelling abilities of the various block copolymers made from PS and PMDEGA blocks were studied by rheology. Important differences were observed between diblock copolymers, containing one hydrophobic PS block only, the telechelic symmetrical triblock …
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