Sökning: "Fluorescence"

Visar resultat 21 - 25 av 1094 avhandlingar innehållade ordet Fluorescence.

1. 21. Super resolution fluorescence imaging : analyses, simulations and applications

   Författare :Jan Bergstrand; Jerker Widengren; Eilon Sherman; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

   Sammanfattning : Fluorescence methods offer extraordinary sensitivity and specificity, and are extensively used in the life sciences. In recent years, super resolution fluorescence imaging techniques have developed strongly, uniquely combining ~10 nm sub diffraction resolution and specific labeling with high efficiency. LÄS MER

3. 22. Statistical methods in single particle fluorescence microscopy

   Författare :Magnus Röding; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; absolute number concentration; Brownian motion; diffusion; fluorescence microscopy; image analysis; image processing; nanoparticle characterization; particle tracking; Smoluchowski process; nanoparticle characterization;

   Sammanfattning : The aim of this thesis is stochastic modeling and statistical inference in single particle fluorescence microscopy related to the experimental observation of randomly moving particles. A central theme is the use of single particle microscopy for estimation of absolute concentration of nanoparticles performing Brownian motion. LÄS MER

4. 23. Fluorescence Studies of Cell Division in Escherichia coli

   Författare :Bill Söderström; Gunnar von Heijne; Jie Xiao; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; E. coli; Cell division; FtsZ; Fluorescence microscopy; FRAP; Biophysics; biofysik;

   Sammanfattning : In Escherichia coli the cell division is carried out by a large dynamic protein complex called the divisome. The divisome assembles in a two-step manner starting with the localization of the eukaryotic tubulin homologue FtsZ to the midcell. Together with other early arriving proteins FtsZ form an intermediate structure called the Z-ring. LÄS MER

5. 24. Latex Colloid Dynamics in Complex Dispersions : Fluorescence Microscopy Applied to Coating Color Model Systems

   Författare :Gunilla Carlsson; Jan van Stam; Maria da Graca Miguel; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fluorescence microscopy; coating color; colloid; latex; diffusion; Brownian motion; film formation; polymer interaction; Physical chemistry; Fysikalisk kemi; Kemi; Chemistry;

   Sammanfattning : Coating colors are applied to the base paper in order to maximize the performance of the end product. Coating colors are complex colloidal systems, mainly consisting of water, binders, and pigments. To understand the behavior of colloidal suspensions, an understanding of the interactions between its components is essential.. LÄS MER

7. 25. Short-Pulse Laser Spectroscopy for Combustion Diagnostics - Laser-Induced Fluorescence of Polyatomic Molecules and Developments in Measurement and Evaluation

   Författare :Thomas Metz; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; pulsed lasers; Physics; Fysik; Laser technology; Laserteknik; non-linear spectroscopy; maximum likelihood; curve fitting; data adjustment; statistical inference; formaldehyde; PAH; polycyclic aromatic hydrocarbons; lifetime imaging; two-dimensional; streak camera; LIF; laser-induced fluorescence; Fluorescence lifetimes; time-resolved;

   Sammanfattning : Combustion is the most important source of energy worldwide. A better understanding of it is essential if pollutant emissions are to be reduced and combustion devices be made more efficient. This requires measurement of physical and chemical combustion parameters. LÄS MER