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 “"cubic phases"”.
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Structural study of lipid bicontinuous cubic phases for cellular delivery
Lipid bicontinuous cubic phase is fundamentally interesting phase. Initially it is considered as an intermediate structure between lamellar and hexagonal phases due to its small phase space and complicated structure. With the development of structure characterization technologies, especially X-ray …
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Synthesis and characterisation of metal oxides and metal doped variants
… than pure magnetite. <br></br><br></br>Cubic-, tetragonal- and monoclinic- zirconium(IV) oxides have been produced by boiling zirconium (IV) acetate under reflux and calcining at increasing temperatures. Raman spectroscopy has been used to distinguish between tetragonal- and cubic- …
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New insights in contact allergy and drug delivery. A study of formulation effects and hapten targets in skin using two-photon fluorescence microscopy
… using formulations composed of lipid cubic phases. The work also showed elevated sensitization potency of haptens depending on delivery vehicles. Putative mechanistic explanations for the observed effects have been proposed. Specifically, phthalates were shown to increase the …
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Surface structures of Al-Pd-Mn and Al-Cu-Fe icosahedral quasicrystals
… the LEED patterns are periodic and correspond to cubic [beta]-Al(Pd1-xMnx) or [beta]-Al(Cu1-xFex) with CsCl structure. The orientations of the cubic phases are (111) on threefold surface, (110) on twofold and fivefold surfaces;The high temperature LEED patterns have very sharp LEED spots. The …
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The mesophase structure of surfactants
… The phase diagram has been established and the phases encountered exist for the most part from 24 to 60% surfactant by weight. Above and below these concentrations exist isotropic and lamellar phases respectively. The phase diagram features three main phases, a hexagonal phase of circular rods, …
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A Novel IN SITU Gel for Sustained Drug Delivery and Targeting
… hydrophobic drugs. GMO forms liquid crystalline cubic phases in excess of water. This unique property of GMO is responsible for its bioadhesive property along with its ability to serve as a sustained release carrier for drug delivery. The objective of this study was to develop an in situ …
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NMR Applications in Soft Materials Science: Correlation of Structure, Dynamics, and Transport
… a transition from columnar to bicontinuous cubic phases with a simple increase in humidity, while the amorphous domain boundaries consist of individual wedge molecules with a significant fraction (~ 10%) of total wedge molecules. Multiple-component diffusion of both wedges and water further …
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Elasticity measurements at extreme conditions: application to FeO and FeNi-alloy
… of fully anisotropic elasticity data for mineral phases. The single-crystal elastic constants of minerals, Cij, are elements of the fourth-rank elasticity tensor, which relates stress to strain. The fact that elastic strain also defines seismic wave propagation, the elastic tensor of minerals can …
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Microfluidic platforms for membrane protein crystallization and in situ crystallography
… method requires handling highly viscous lipid phases with specialized mixing and dispensing tools, and is thus limited to dedicated crystallographers and labs with robotic formulation systems. Regardless of the crystallization technique used, membrane protein crystals are incredibly fragile, so …
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Growth and characterisation of group-III nitride-based nanowires for devices
… substrate surface. There is no evidence for cubic phases. TEM images and optical studies display a high crystalline and optical quality of GaN and InN nanowires. Lattice constants determined from TEM images agree well with literature values for strain-free GaN and high-quality inn. The …