Sökning: "fluorescence quenching"
Visar resultat 1 - 5 av 53 avhandlingar innehållade orden fluorescence quenching.
1. Competitive Protein Adsorption during Spray-drying
Sammanfattning : The aim of this thesis was to study competitive adsorption of milk proteins during spray-drying. For this purpose, a new surface sensitive method was developed which measures the quantitative amount of specific proteins at the powder surface. LÄS MER
2. Unravelling Sensitisation and Quenching Pathways in Lanthanide Luminophores
Sammanfattning : Lanthanide (Ln) ions find use in cellular detection and probing of many analytes, owing to their unique photophysical properties. However, to make the Ln emission efficient, one has to develop a light-harvesting antenna, which is an organic chromophore that absorbs and transfers energy to the Ln. LÄS MER
3. Energy Transfer Processes and Quenching Pathways in Lanthanide Complexes: The Role of Structural Changes
Sammanfattning : Due to their unique magnetic and luminescent properties, trivalent lanthanides (Ln(III)) have been widely utilised in cellular imaging. Ln(III) luminescence is usually sensitized by a light-harvesting ‘antenna’, a chromophore that can transfer the excitation energy to the Ln(III). LÄS MER
4. Photo-induced dark states influorescence spectroscopy – investigations & applications
Sammanfattning : This thesis focuses on investigations of transient dark states of fluorescentmolecules using spectroscopic techniques. The main purpose is to show andconvince the reader that transient dark states are not always a nuisance, butalso represent an additional source of information. LÄS MER
5. Short-Pulse Photofragmentation and Fluorescence-based Diagnostics - Development and Applications
Sammanfattning : The work presented in the thesis covers the use of laser-induced fluorescence (LIF) and photofragmentation laser-induced fluorescence (PFLIF) with short laser pulses to determine species concentrations in different combustion environments. To attain quantitative species concentrations using LIF investigations of the influence of collisional quenching on the fluorescence signal strength is of vital importance, which can be done by measuring the fluorescence lifetime. LÄS MER