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 11 of 11 for “"Ultraviolet-Visible (UV-vis) spectroscopy"”.
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Electrochemistry of Polyaniline-DNA System.
… Ag/AgCl reference electrode, respectively. The ultraviolet-visible (UV-Vis) spectroscopy, the alternating-current impedance, the electrochemical quartz crystal microbalance (EQCM) and the voltammetry techniques have been used to characterize the above system. Results revealed that during the …
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The use of model compounds to investigate the influence of fuel composition on the thermo-oxidative stability of fame/diesel blends
… included Fourier transform infrared (FTIR) and ultraviolet-visible (UV-Vis) spectroscopy as well as electrospray ionisation-mass spectrometry (ESI-MS).
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The synthesis of stable nanotags for the detection of biomolecules using surface enhanced Raman scattering
… response which can be characterised using ultraviolet-visible (UV-vis) spectroscopy, Resonance Raman scattering (RRS) and surface enhanced resonance Raman scattering (SERRS). Nanozymes have been applied to various different applications, some of which are explored in this thesis. The …
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Advancing prostate cancer therapy: synthesis and characterization of docetaxel-loaded magnetic iron oxide nanoparticles for controlled drug release.
… glycol (PEG). Structural analysis was done using ultraviolet-visible (UV-Vis) spectroscopy which showed changes in absorption spectra with each attached molecule a blue shift was observed due to particle size increase. X-ray diffraction (XRD) pattern showed that pure magnetite nanoparticles were …
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Targeted preparation of metallic materials via innovative electrochemical approaches
… electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), anodic linear sweep voltammetry (ALSV), X-ray diffraction (XRD) and electrochemical quartz crystal microbalance (EQCM). Moreover, selected experimental surfaces were examined by …
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Highly conductive sodium dodecyl sulphate treated poly (3,4-ethylendioxylthiophene) : polystyrene sulfonate (pedot: pss) containing copper nanoparticles for flexible organic solar cells
… The films produced were characterized using Ultraviolet-Visible (UV-VIS) spectroscopy to determine the optical properties while atomic force microscopy (AFM) was used to evaluate morphological characteristics. Characterisation of the structural properties was done using X-ray diffraction …
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Highly conductive sodium dodecyl sulphate treated poly (3,4-ethylendioxylthiophene) : polystyrene sulfonate (pedot: pss) containing copper nanoparticles for flexible organic solar cells
… The films produced were characterized using Ultraviolet-Visible (UV-VIS) spectroscopy to determine the optical properties while atomic force microscopy (AFM) was used to evaluate morphological characteristics. Characterisation of the structural properties was done using X-ray diffraction …
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Bioremediation of Effluent Water in a Coal Ash Disposal Area: Optimizing Microbial Sulfate Reduction
… chloride (BaCl2) solution to induce turbidity. Ultraviolet Visible (UV Vis) Spectroscopy was used to measure final sulfate concentrations using the Mettler Toledo Method. Results show the acid substrates were successful in promoting SRB to utilize sulfate in the system, with up to 98% sulfate …
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Thin-Film Polymer Nanocomposites Composed of Two-Dimensional Plasmonic Nanoparticles and Graphene
… on the surfaces of metal nanoparticles. Using ultraviolet-visible (UV-vis) spectroscopy, I have demonstrated the quantification of polymer grafting density on the surface of plasmonic nanoparticles. The λLSPR of plasmonic nanoparticles red-shifts as the polymer concentration near the …
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Development and manufacture of novel amorphous Itraconazole drug products using quality by design principles
… continuous hot melt extrusion (HME) and in-line ultraviolet-visible (UV-Vis) spectroscopy. DoE 1 screened the ITZ concentration, die temperature, screw speed and feed rate as critical factors. Ten out of eleven samples analysed passed the quality target for lightness, L* > 83%. Two shifts were …
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Structure-property relationships of dyes as applied to dye-sensitized solar cells
… solar cells. Experimental methods, including ultraviolet-visible spectroscopy, fluorescence spectroscopy, cyclic voltammetry and electrochemical impedance spectroscopy are employed to study optical and electrochemical properties of dye molecules. Computational methods, including density …