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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 151 for “"rhodamine"”.
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The effects of rhodamine WT and chlorine on the recovery of fecal coliforms
… in a natural stream water were exposed to rhodamine WT dye, chlorine and both in combination. Samples were analyzed for coliforms by three enumeration techniques. Statistical analyses of data by the paired-t test showed that for non-chlorinated samples no significant difference (0.10 level) …
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Zeolites and Polymer Thin Films as Media for Structuring Light-Induced Electron Transfer Reactions (Rhodamine B, Forster, Energy Migration)
Zeolites are characterized as structural templates for light-induced electron transfer reactions. The main emphasis is on factors affecting loading of Ruthenium tris(bipyridine) (Ru(bpy)(,3)('+2)) into the lattice and explaining luminescent decay data in terms of the molecular environment.
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Spectroscopic Studies of Abiotic and Biological Nanomaterials: Silver Nanoparticles, Rhodamine 6G Adsorbed on Graphene, and c-Type Cytochromes and Type IV Pili in Geobacter sulfurreducens
… systems: silver nanoparticles, the dye molecule rhodamine 6G adsorbed on graphene, and the type IV pili and c-type cytochromes produced by the dissimilatory metal-reducing bacterium Geobacter sulfurreducens. Although these systems are quite different in some ways, they can all be considered …
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Energy Transfer Among Fluorescent Molecules Dispersed in Thin Films of Polymer or Protein (Rhodamine B, Sulforhodamine 101, Polyvinyl, Poly (Vinyl Alcohol) Bovine Serum Albumin, Time-Correlated Photon Counting, Lifetimes)
… fluorescence techniques has shown that because rhodamine B (RHB) has an appreciable overlap of absorption and emission spectra, a system of RHB molecules dispersed in poly(vinyl alcohol) (PVOH) can collect light energy and transfer the energy of the excited state, or exciton, among the RHB …
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Identification of Molecules by Spectral Imaging
… spectra of organic substances including Rhodamine 6G, Doxorubicin and UV-Vis spectra inorganic compounds including silver (Ag), gold (Au) nanoparticles (NPs). After that, we used the Q-TOF LC/MS system to quantify the maximum and minimum detectable concentrations of Rhodamine 6G and …
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Luminescent Quantum dots for Cellular Analysis
… between quantum dots that serve as donors and rhodamine molecular acceptors that were immobilized to the surface of the quantum dots through peptide linkers, which contained selective enzymatic cleavage sites. Upon enzymatic cleavage of the peptide linkers, the rhodamine molecules no longer …
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Micrometer-scale chemical analysis using heated AFM cantilever and mass spectrometer
… In the present work, a caffeine sample and rhodamine B sample were successfully analyzed. The caffeine sample was detected by MALDI mass spectrometry, and rhodamine B sample was detected by fluorescence microscopy.
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CLINICAL APPLICATIONS OF CHEMILUMINESCENCE DETECTION
… a high water component in the measurement were rhodamine B in Tris buffer adjusted to pH 8.00, 10('-3) M bis(2,4,6-trichlorophenyl) oxalate (TCPO) in ethyl acetate and 10('-3) M hydrogen peroxide in acetonitrile in the ratio 5:2:3. Under these conditions, the detection limit for rhodamine B is …
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The distribution of different fluorescence dyes in the egg and embryo of the zebrafish (Danio rerio)
… better assessment of the effects of side chains, rhodamine b and fluorescein were chosen as basic fluorochromes, which were then modified by diverse substituents that differed in their partition coefficient, molecular size and charge. The substances tested were rhodamine b, sulforhodamine b, …
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Applications of eScience to interfacial chemistry
… to investigate the behaviour of the laser dye Rhodamine<br/>6G at the air/water interface. The ease and reliability of recall of data afforded by the<br/>tools caused concerns to be raised about the repeatability of the experiment, and hence<br/>the surface of pure water samples was also …
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Effect of cross-linking on the diffusion of water, ions and small molecules in hydrogels
… the diffusion properties of water, ions, and rhodamine within the polymer at the molecular level. The water structure and diffusion properties were studied at various cross-linking densities with molecular weights of the chains ranging from 572 to 3400. As the cross-linking density is …
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Microspheres and Nanoparticles From Ultrasound
… and nearly noncytoxic. Small molecules like Rhodamine and DHED (dehydroevodiamine HCl; Alzheimer's disease therapeutic) can be delivered along with them. Furthermore, synthesis of carbon nanoparticles and titanate nanotube species are possible utilizing these microspheres. Characterizations …
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Remote three-dimensional temperature sensing using planar laser induced fluorescence : development and applications to microwave heated liquids
… molecular probes. A Dextran polymer labeled with Rhodamine B was used as a temperature-sensitive probe that operates between 20 and 60 ⁰C. A second temperature-insensitive probe, Rhodamine 110, was used to monitor changes in the laser emission intensity. A dual camera fluorescence detector system …
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Design and Use of Fluorescent Assays to Study Plasminogen Activator and Other Serine Proteases Involved in Biological Control
… need to be devised. Because the xanthene dyes rhodamine and fluorescein are among the most fluorescent compounds known and, as such, can be detected at very low concentrations, derivatives of these fluorescent dyes were designed as fluorogenic substrates for the amidase and esterase activity of …
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Fabrication and applications of fluorescent polymer fibres
… thesis. Polystyrene fibres, doped with either Rhodamine B or polyfluorene, have been produced; Rhodamine B doped fibres were successfully deposited from DMF while the polymer blends required mixed solvents. Suspended PVK fibres have been collected through the use of a custom substrate from …
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Synthesis and applications of silver and palladium nano metal foams
… This material can enhance the detection of the rhodamine 6G (R6G), a model analyte. The limit of detection for rhodamine 6G was found to be 2 ₉ 10-6 M with the help of this silver nanoporous structure. Palladium NMFs was found to degrade methyl orange (MO). An aqueous MO solution will turn …
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Ionic Liquids and GUMBOS for Biomedical and Sensing Applications
… ionic liquid chemistry to modulate toxicity of rhodamine 6G is reported. Rhodamine 6G-based GUMBOS with varying counter-anions that are stable under physiological conditions, display excellent fluorescence photostability, and more importantly have tunable chemotherapeutic properties were …
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Metal oxide heterostructured films with controlled architecture for enhanced photocatalytic properties
… performance of these films for pollutant (Rhodamine B) degradation. In parallel, we explored the inter- action of water with heterostructured (NiO/ZnO) photocatalysts, to interpret the surface reactions and their influence on interfacial band bending, a strategy for understanding the …
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Effects of Metallic Nanoalloys on Dye Fluorescence
… with three fluorophores: rose bengal, rhodamine B, and fluorescein sodium. Depending upon the dye quantum yield and its concentration in solution, enhancement or quenching of fluorescence was obtained. Thus, a three to five times increase in fluorescence intensity was observed in a 2.0 …
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