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 26 for “"monodispersity"”.
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Development of a high throughput screen for the expression of membrane proteins and their purification and crystallisation
… which has to be expressed and purified to monodispersity to allow crystallisation. As membrane proteins have to be inserted into the membrane, recombinant expression yields are often low. In order to obtain enough protein for purification and crystallisation studies, the expression of …
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Oscillating Dispersed-Phase Co-Flow Microfluidic Droplet Generation: Effects on Jet Length and Droplet Size
… Although there is adequate control on size and monodispersity, most conventional microfluidic techniques cannot generate more than one droplet size at a time in a continuous and high-throughput manner. Moreover, the widely used co-flow microfluidic droplet generation technique is bottlenecked …
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Microfluidic approaches to the synthesis of complex polymeric particles
… particles with precise control over shape, monodispersity and chemistry is a technologically important objective. Varied applications including medical diagnostics. designer fabrics and optical devices could benefit from the availability of geometrically complex and chemically inhomogeneous …
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Synthetic routes to monodisperse gold nanoparticles stabilized by different-length alkanethiols
… they were easily surpassed by the degree of monodispersity achieved by a one-phase method. This one-phase method, which does not use inverse micelles to control the reduction process, was able to reach distribution levels where o<10%. More specifically, the method proved robust enough to …
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Surface modifications of iron oxide nanoparticles for biological applications
… high crystallinity, high magnetization, and size-monodispersity were synthesized with oleic acid as their native ligands. These hydrophobic and non-functionalized MPs have magnetic properties that are suitable for various biological applications. Surface modifications were studied for transferring …
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Synthesis and surface modification of nanorods for investigation into organic-inorganic hybrid materials
… in order to increase the yield, aspect ratio and monodispersity of nanorods formed. Localised alignment according to Onsager theory was observed for nanorods produced with sufficient aspect ratio and concentration.Investigations into the formation of self-assembled monolayers were carried out …
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Microfluidic formation of hierarchical micro and nano emulsions for biomedical applications
… multicompartmental structure with high particle monodispersity can be achieved through microfluidics, and in particular, droplet-based approaches. In this thesis, microfluidic techniques are employed to generate microcapsules comprised of a protein-fibrillar network. Capsules exhibiting complex …
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Structure-function analysis of 11β-hydroxysteroid dehydrogenase
… in E.coli together with an increase in both monodispersity and activity. No change in structure was observed when compared to the previously reported wild-type structure. Human F278E 11β-HSD1 enzyme was then used as a background to construct a hybrid dimer system to analyse novel heterozygous …
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Synthesis And Characterization Of Transition Metal Arsenide Nanocrystals And The Metastability And Magneto-Structural Phase Transition Behavior Of Mnas Nanocrystals
… more control of the nanoparticle growth and monodispersity than is achieved by the direct conversion of metal nanoparticles.</p>
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Engineering the angiotensin II type 1 receptor for structural studies
… AT1R were assessed for expression, stability and monodispersity. Additionally a rapid western blotting based assay was developed for the detection of unfolded membrane proteins, which will have wide applicability in the field.
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Increasing the optical transparency of a living mouse brain (and other nanotechnologies)
… method for the synthesis of high-yield and high-monodispersity nanoparticles of a variety of materials with tailored surface ligands, using common benchtop equipment. This method may be useful for developing nanoparticles with better biosafety, efficacy and performance. (2) A method for the …
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Attractive electrostatic self-assembly of ordered and disordered heterogeneous colloids
… that the screening ratio, charge ratio, and monodispersity are critical parameters in ionic colloidal crystal (ICC) formation. Experimentally, small ordered regions were observed under ideal thermodynamic conditions. However, no larger crystalline regions were found in these samples. The …
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Bringing down barriers to the tunability, purity, and scalability of imogolite nanotubes
… respectively. Total nanotube counts and length monodispersity are found to increase with the addition of Ge and increasing precursor ageing. For the first time ever, the occurrence of multi-segmented imogolite nanotubes is also reported. Finally, the scalable synthesis of imogolite is tackled …
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Granular Hydrogels for Localized Nanoparticle Delivery
… approach for producing microgels with high monodispersity and precise control over size. The resulting granular hydrogels exhibited tunable architecture, unique dual-scale swelling behavior, and could be lyophilized with optimized excipients to enable long-term storage and rehydration …
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Polymer- and Bioadditives-Assisted Synthesis and Surface Modification of Anisotropic Gold Nanocrystals
… stage of the synthesis which increases nanoplate monodispersity and provides their long-term shape stability. The enhanced colloidal stability after functionalization with 11-mercaptoundecyltrimethylammonium bromide (MUTAB) of small anisotropic nanoparticles synthesized with the polymer or …
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Large area electro-optical tactile sensor:Characterization and design of a polymer, nanoparticle based tunneling device
… chains dissolved in solution at high yield. The monodispersity is achieved due to the beaded necklace morphology of the polyelectrolyte chains in solution where the beads are nanometer-scale nodules in the polymer chain and the nanoparticles are confined to the beads. The resultant structure is a …
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The Colloidal Stabilization of Quantum Dots: Towards Manufacturable, Efficient Solution-Processed Solar Cells
… create higher-quality CQDs exhibiting enhanced monodispersity. I then proceed to develop a CQD ink: a CQD solution ready for direct deposition to form a semiconducting film exhibiting low trap state density. In early trials the CQD ink showed only limited power conversion efficiencies of 2%. I …
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Synthesis and Consolidation of Metal Oxide Nanocrystals via Nonthermal Plasma
… of retaining nanocrystalline grain size and the monodispersity in the size distribution achieved via the nonthermal plasma. The first aim of this dissertation is to couple external plasma synthesis parameters to desired nanoparticle properties. A nonthermal plasma synthesis process to produce …
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Engineering the Synthesis and Properties of Two-Dimensional Colloidal Perovskite Nanoplatelets
… perovskite nanoplatelets at room-temperature. Monodispersity of the nanoplatelets is confirmed by optical and structural characterizations. Photoluminescence and absorption spectra reveal strongly-confined excitonic features which can be tuned in the visible range by changing nanoplatelet …
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Synthesis and Microscopic Characterizations of Virus Nanoparticle-Based Composite Materials
… three dimensional (3D) structures, monodispersity, high-polyvalent surface, and easily functionalized by genetic and chemical methods, which are difficult to be achieved by man-made materials. Therefore, the fabrication and the biomedical applications of biomaterials using viruses as …
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