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 29 for “"Fluorescent properties"”.
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Preparation of 7-(p-Substituted-Benzylamino)-4-Nitrobenzoxadiazole Derivatives and the Study of their Fluorescent Properties in Solution
… and study their fluorescent behavior in aqueous-nonaqueous solvent systems. The parent compound has been used by others as a fluorescent probe to determine the conformation changes of bovine trypsinogen and bacterial libosomes. Fluorescent probes have been used to: …
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Transformation of biomass carbohydrates by transition metal catalysts
… into the plant structures. By utilizing fluorescent tagging strategies a two part marking system was used to follow the incorporation of fucose into the plant cell wall. Fucose is limited in its use by plants only becoming incorporated into branched xylan chains that help to link …
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Chemical synthesis of glycosylated oligoribonucleotides for siRNA development
… dimannosyl UlO-mer. In the synthesis of aromatic fluorescent ribosides, perbenzylated ribofuranosyl pyrene and phenanthrene were synthesized from perbenzylated ribolactone. Deprotection of benzyl-protected ribofuranosyl phenanthrene and pyrene by boron tribromide gave ribofuranosyl phenanthrene …
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Fluorescent Modifications of Transfer Ribonucleic Acids
… and that, at least to some extent, products with fluorescent properties similar to those of (mu)-guanosine are formed. The primary site of modification has been rigorously identified as either the X-nucleoside or the 7-methylguanosine in the variable loop of tRNA('Phe). The modified tRNA('Phe) can …
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Implementing Solvothermally Synthesized Carbon Nanodots into Dye-Sensitized Solar Cells to Enhance External Quantum Efficiency in the Ultraviolet
… carboxyl surface functional groups where the fluorescent mechanism lies. This thesis seeks to exploit these fluorescent properties of CNDs to down-convert ultraviolet photons to a more suitable photon energy in order to increase the external quantum efficiency (EQE) of dye-sensitized solar …
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The synthesis, photochemistry & electrochemistry of dithienylethene switches & their organometallic complexes
… switches, describing their synthesis, properties and applications. The photochromic and electrochromic effects of functionalising such switching units with metal complexes, is then discussed. Finally, an introduction to cobalt carbonyl complexes is given, with an outline of the …
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Single molecule studies of rna-target interactions
… fluorophore, TAMRA, to an aptamer enhances the fluorescent properties of the fluorophore. Specifically, it increases both its quantum yield and fluorescent lifetime. This will provide an added advantage to the use of these aptamers in labeling an mRNA in vivo. We have shown that 2' modifications …
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The synthesis of bimane constrained peptides and their fluorescent and structural properties
… and increasing cell permeability, however a fluorescent tag is still necessary to visualise a drug candidate. Here, a bimane linker is proposed as a new peptide linker to help overcome these limitations. Dibromobimane is reacted with thiol-containing amino-acid side chains to introduce a new …
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Dynamics of Spin and Charge of Color Centers in Diamond under Cryogenic Conditions
… coherence times and versatile spin-dependent fluorescent properties, making it an ideal candidate for a nanoscale magnetometer. Furthermore, multi-color excitation offers deterministic charge state manipulation. While ambient operation has been key to their appeal, bringing NVs to cryogenic …
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Synthesis and Characterization of New Probes for use in Fluorescence and X-ray CT Bioimaging
… compound with suitable one- and two-photon fluorescent properties and its encapsulation into Pluronic F127 micelles for the possible application of tracking lysosomes. Next the synthesis and characterization of a BODIPY-based fluorophore with excellent fluorescence ability is reported. This …
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The Identification of Composite Resin Restorations within Natural Teeth
… material due to excellent physical and aesthetic properties. Unfortunately this makes visual detection more difficult. Restorations form a unique feature of an individual dentition. Therefore it is important to identify composite in conservative dentistry to avoid charting errors and reduce cavity …
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Investigating optical microplastic detection methods using fluorescent staining through Nile Red
… the health and environmental risk posed by MPs. Fluorescent tagging of microplastics using Nile Red (NR) has recently emerged as an accessible and popular detection method. However, robust, standardized methods of using Nile Red to identify between plastic and organic materials or distinguish …
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Determining S6K1 localisation and interactions with mTORC1 in live cells using fluorescence lifetime imaging microscopy
… and INK128, both pan-mTOR inhibitors, show fluorescent properties that can be used to investigate their cellular action. The fluorescence quantum yields for AZD2014 and INK128 are 0.47 and 0.33, respectively. Cellular uptake of the drugs is rapid with a half-life of 60 seconds and 42 …
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Design and Application of Probes of Novel Bioactivities
… investigated: AtSFGH and AtCXE12. A series of profluorescent esters based on 4 methylumbelliferone and fluorescein were synthesised and used in screening experiments against these enzymes. To produce libraries of recombinant proteins molecular biology techniques such as site-directed mutagenesis …
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Single-Molecule Studies Of Local And Global Nucleic-Acid Dynamics
… within nucleic acids and taking advantage of the fluorescent properties of 2-aminopurine (2AP) and pyrrolo-cytosine (PC) to study local dynamics at single base resolution. A click chemistry-based, single-molecule immobilization methodology that enables sufficient minimization of background …
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The Synthesis of Functionalized Glycosides: Coordination Chemistry, Antiparasitic Activity, Precursors to Conformationally Constrained Macrocyclic Architectures and Photophysical Properties
… glycosides and the investigation of their properties. This included the study of their ability to form metal complexes and the study of the antiparasitic activity of both the free glycosides and metal complexes, the use of glycosides to serve as precursors to conformationally constrained …
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Digital frequency domain fluorometry and the study of Hoechst 33258 DYE-DNA interactions
… the study of DNA and DNA binding. However, the fluorescent properties of Hoechst 33258 are not well understood. The dye is highly quenched in aqueous solutions and becomes brightly fluorescent when bound to A·T rich sequences of DNA or placed in non-aqueous solutions. The fluorescence of Hoechst …
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Antioxidant studies of fullerene and metallofullerene derivatives and fluorescence studies of terbium-containing metallofullerene derivatives
… anti-virus, anti-cancer, immunological properties, etc. However, the hydrophobicity nature of fullerenes and metallofullerenes raises the need for functionalized hydrophilic fullerenes and metallofullerenes. Also, the advancement of the purification techniques of fullerenes and …
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