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Croissance localisée de boîtes quantiques d'inas sur une surface nanostructurée d'INP (001) pour une application en composants photoniquesTurala, Artur Gendry, Michel January 2009 (has links) (PDF)
Thèse doctorat : Matériaux : Ecully, Ecole centrale de Lyon : 2007. / Titre provenant de l'écran-titre. 139 références.
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Deformation studies of tungsten-gold contacts at the nanometer scale /Smallwood, Steven A., January 2001 (has links)
Thesis (Ph. D.) in Physics--University of Maine, 2001. / Includes vita. Includes bibliographical references (leaves 122-128).
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Dynamic conductance of nanostructures /Zheng, Wei., January 2002 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2002. / Includes bibliographical references (leaves 128-133).
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Photocatalytic application of metal oxide nanostructuresNg, Yip-hang, 吳業恆 January 2014 (has links)
Metal oxides are important materials that are being developed for use in research and health-related applications. In particular, TiO2 and ZnO nanomaterials for applications in antibacterial coatings, pollutant purification, and photovoltaic devices have been extensively studied. The photocatalytic performances are highly dependent on morphology and crystal structure. However, there are few studies are comparing pollutant purification and antibacterial behavior of different TiO2 nanostructures and less studies of antibacterial activity related to fundamental properties of ZnO. In this study, the details of proposed mechanism and principle of antibacterial mechanisms of metal oxide nanostructures has been examined. Different TiO2 nanostructures (nanotubes, nanorods) have been successfully synthesized and their photocatalytic properties have been studied. In addition, studies of basic properties of commercial ZnO nanoparticles related to antibacterial activity have been performed. / published_or_final_version / Physics / Master / Master of Philosophy
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Electronic transport under strong optical radiation and quantum chaos in semiconductor nanostructuresLi, Wenjun 28 August 2008 (has links)
Not available / text
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Sortase-Mediated Labeling of M13 Bacteriophage and the Formation of Multi-Phage StructuresHess, Gaelen 15 November 2012 (has links)
M13 filamentous bacteriophage has been used as a biotemplate for the nucle- ation of materials. Phage is an ideal and diverse scaffold with its large aspect ratio and ability to display biomolecules to bind a range of targets. To form more complex patterned materials, interactions between the phage must be specific and reliable. We develop a phage labeling method using sortase enzymes to create multi-phage nanostructures. We exploit two sortases and functionalize the N-termini of the pIII, pIX, and pVIII proteins with small and large moieties. For the pVIII, we show a 100 fold improvement in display of GFP molecules on the phage surface. Taking advantage of orthogonal sortases, we simultaneously label two capsid proteins on a single phage particle. Using these N-terminal labeling techniques, we demonstrate fluorescent staining of cells and construct a lampbrush phage structure linking the pIII of one phage to the pVIII of another using a biotin-streptavidin linkage. To further expand our labeling repertoire, C-terminal sortase labeling of phage was pursued. To achieve this goal, we transfer a loop structure from cholera toxin to pIII and label it with a fluorophore and a multi-domain protein. With this archi- tecture, we form end-to-end dimers using sortase to conjugate the loop structure to phage containing the nucleophile motif. Lastly, we investigate DNA hybridization as a method for crosslinking phage. Using sortase, we label the pVIII on two sets of phage: one with ssDNA and the other with a complementary DNA oligonucleotide. We anneal these phages together and observe phage networks that are dispersed by heat and reform upon cooling.
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Novel nucleoside analogs with supramolecular and biological applicationsPalmer, Alison Lesley. January 2006 (has links)
Nanostructures, molecular assemblies at the nanometer scale, are currently influencing diagnostics, imaging, and therapeutics. Many nanostructures are built using supramolecular chemistry principles, where hydrogen bonding between simple building blocks causes the formation of specific morphologies. Here we hypothesize that a six stranded DNA nanotube can be generated by tethering triaminopyrimidine and cyanuric acid building blocks as bases on the natural DNA backbone. We also hypothesize that cyanuric acid, a secondary oxidation product of guanine, will form complex architectures with adenine, its natural hydrogen bond complement. To test these hypotheses, we used multi-step synthetic strategies to generate DNA strands of cyanuric acid and triaminopyrimidine. The synthesis of the cyanuric acid DNA strand is complete and preliminary self-assembly studies with adenine DNA strands have been performed. The synthesis of the triaminopyrimidine DNA strand is ongoing. This thesis provides the groundwork for incorporating supramolecular building blocks into DNA to generate complex DNA architectures.
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A study of tin oxide-based gas sensors with nanostructureZhang, Gong 08 1900 (has links)
No description available.
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Modification of semi-metal oxide and metal oxide powders by atomic layer deposition of thin films /Snyder, Mark Q., January 2007 (has links) (PDF)
Thesis (Ph.D.) in Chemical Engineering--University of Maine, 2007. / Includes vita. Includes bibliographical references (leaves 92-107).
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Improving the optoelectronic property and photoactivity of nano-structured titanuim dioxide effect of particle size, oxygen vacancy, and nitrogen doping /Lin, Hong-Ying. January 2008 (has links)
Thesis (Ph.D.)--University of Delaware, 2008. / Principal faculty advisors: Chin-Pao Huang, Dept. of Civil and Environmental Engineering, and S. Ismat Shah, Dept. of Materials Science Includes bibliographical references.
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