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 10 of 10 for “"cationic dyes"”.
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Reactions of Excited State Cationic Dyes
… given there. The electron transfer reactions of cationic dye-borate salts in nonpolar solution is the subject of chapter 4. It is shown that for the charge recombination electron transfer reaction from borate anion to excited state dye cation no Marcus inverted region behavior is seen. Finally, …
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Novel dopants for n-type doping of electron transport materials: cationic dyes and their bases
… Unlike inorganic semiconductors, organic dyes are up to now usually prepared in a nominally undoped form. However, controlled and stable doping is desirable in many organic-based devices as well. If we succeed in shifting the Fermi level towards the transport states, this could reduce …
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Quantitative analysis and modeling of microembolic phenomena
… low-viscosity media that prevent expansion. Cationic dyes were found that bind the charged matrix within PAA-MS to enhance visualization.
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Conversion of landfill composite to activated carbon as an approach to sustainable landfill management
… generation of adsorbent suitable for removal of cationic dyes and pollutants.
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SYNTHESIS AND CHARACTERIZATION OF MODEL AQUATIC PARTICULATES FOR USE IN SORPTION STUDIES
… to measure surface area through adsorption of cationic dyes were unsuccessful. Dye adsorption on illite varied with the square root of the ionic strength of the dye solution. This trend was interpreted in terms of a simple model of charge density at the solid-solution interface and Gouy-Chapman …
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On Clay Minerals: Adsorption and Modification
… AOT. The behaviour of an adsorbed layer of the cationic surfactant didodecyldimethylammonium bromide (DDAB) adsorbed on mica was studied on exposure to different species in solution, including anionic and non-ionic surfactants. Very different behaviour was seen depending on the nature of the …
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Zirconium-based Metal-Organic Frameworks for Pleural Mesothelioma Therapy
… for dye solution, showing its high affinity to cationic dyes such as rhodamine B and brilliant blue due to its negative surface charge. In summary, Zr-based MOFs have shown great promise in mesothelioma therapy due to their functionalisable surface (bilayer and PEG), dual drug loading …
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The Membrane as a barrier or target in cancer chemotherapy
… resistant cells. The photocytotoxicity of the cationic dyes methylene blue (MB), toluidine blue (TBO) and Victoria blue BO (VBBO) against the EMT6 cell lines was compared to the cyotoxic effect of doxorubicin and cis-platinurn. The cytotoxic effect of VBBO was enhanced 10-fold by illumination …
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N-type doping of organic thin films using a novel class of dopants
… precursor compound in situ. As an example, the cationic dye pyronin B chloride is studied as a dopant in an 1,4,5,8-naphthalene tetracarboxylic dianhydride (NTCDA) matrix. A field effect and conductivity study of a series of doped NTCDA samples is carried out. It proves the increase of the …
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Characterization of Commercial Pectin Preparations by Spectroscopic and Chromatographic Techniques.
… of metal complexation, several highly absorbing dyes such as Ruthenium Red, Nile Blue, and Acridine Orange were used to complex with the pectins and their resulting UV-Vis spectral patterns were employed to determine if one can characterize the different pectins. Chemometric methods are also …