Search for dissertations about: "ToF"

Showing result 11 - 15 of 193 swedish dissertations containing the word ToF.

  2. 11. ToF-SIMS as a tool for analysing organic material in geological samples -Fluid inclusions and beyond

    Author : Sandra Siljeström; Jukka Lausmaa; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic material; ToF-SIMS; Other earth sciences; Övrig geovetenskap; geokemi; Geochemistry;

    Abstract : In situ analysis of organic material in rocks has potential to answer questions in geochemistry, astro- and geobiology. Recently, successful studies which included in situ analyses of geological samples with time-of-flight secondary ion mass spectrometry (ToF-SIMS) were carried out. READ MORE

  4. 12. Surface Characterisation Using ToF-SIMS, AES and XPS of Silane Films and Organic Coatings Deposited on Metal Substrates

    Author : Ulf Bexell; Mikael Olsson; Sven Erik Hörnström; Åsa Kassman Rudolphi; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Silanes; Organic films; ToF-SIMS; AES; XPS; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Abstract : This work focuses on the surface and interfacial characterisation of silane films of a non-organofunctional silane, 1,2-bis(triethoxysilyl)ethane (BTSE), and an organofunctional silane, γ-mercaptopropyltrimethoxysilane (γ-MPS), deposited on Al, Zn and Al-43.4Zn-1.6Si (AlZn) alloy coated steel. READ MORE

  5. 13. Interrogation of drug effects on the lipid composition of single cells and Drosophila brain using ToF-SIMS imaging

    Author : Thuy Mai Hoang Philipsen; Chalmers tekniska högskola; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Drosophila melanogaster; Keywords: Mass spectrometry imaging; PC12 cell.; ToF-SIMS; zinc deficiency; lipid change; methylphenidate; cocaine; cognition; omega-3 and 6- fatty acids;

    Abstract : Lipids are essential for all living organisms on Earth. The most important function of lipids is that they act as the building blocks of cellular membranes. Lipids consist of polar head groups and non-polar tail groups and assemble into bilayer structures to create cell and organelle membranes. READ MORE

  6. 14. Molecular and epidemiological studies on eyes with pseudoexfoliation syndrome

    Author : Amelie Botling Taube; Jonas Bergquist; Albert Alm; Eva Larsson; Hannu Uusitalo; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pseduoexfoliation syndrome; PEX; aqueous humor; cataract; cataract surgery; lens capsule; proteomics; mass spectrometry; MS; MALDI TOF MS MS; quantitative proteomics; iTRAQ; dimethyl labeling; imaging mass spectrometry; IMS; time of flight secondary ion mass spectrometry; TOF-SIMS; crystallin; epidemiology; risk factor; Ophtalmology; Oftalmiatrik;

    Abstract : Pseudoexfoliation (PEX) syndrome is an age-related condition characterized by the production and accumulation of extracellular fibrillary material in the anterior segment of the eye. PEX predisposes for several pathological conditions, such as glaucoma and complications during and after cataract surgery. READ MORE

  7. 15. Exploring small heat shock protein chaperones by crosslinking mass spectrometry

    Author : Wietske Lambert; Biokemi och Strukturbiologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cross-linking; mass spectrometry; protein-protein interactions; Hsp21; BS3; DTSSP; MALDI-TOF TOF; client protein; substrate; aggregation; unfolded protein; chaperone; Small heat shock protein; crosslinking;

    Abstract : Together with other molecular chaperones, small heat shock proteins are key components of the protein quality control system, which is comprised of several hundred proteins and acts to maintain proteome homeostasis in the cell. Small heat shock proteins bind unfolding proteins at an early stage, to prevent these from further unfolding and aggregating. READ MORE