Search for dissertations about: "bio molecules"

Showing result 11 - 15 of 142 swedish dissertations containing the words bio molecules.

  2. 11. Structure and spectroscopy of bio- and nano-materials from first-principles simulations

    Author : Weijie Hua; Yi LUO; Mauro Stener; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; soft x-ray spectroscopy; bio- and nano-materials; first-principles simulation; host-guest interaction; generalized energy-based fragmentation; Quantum chemistry; Kvantkemi; Spectroscopy; Spektroskopi; SRA - Molecular Bioscience; SRA - Molekylär biovetenskap;

    Abstract : This thesis is devoted to first-principles simulations of bio- and nano-materials,focusing on various soft x-ray spectra, ground-state energies and structures of isolated largemolecules, bulk materials, and small molecules in ambient solutions. K-edge near-edge x-ray absorption fine structure (NEXAFS) spectra, x-ray emission spectra, andresonant inelastic x-ray scattering spectra of DNA duplexes have been studied by means oftheoretical calculations at the density functional theory level. READ MORE

  4. 12. Bioimaging for analysis of protein expression in cells and tissues using affinity reagents

    Author : Emma Lundberg; Torbjörn Gräslund; Mathias Uhlén; Rainer Pepperkok; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Affibody; antibody; biomarker; cell line; cell microarray; colorectal cancer; confocal microscopy; HER2; immunohistochemistry; immunofluorescence; light microscopy; protein expression; protein localization; SATB2; tissue microarray; Bioengineering; Bioteknik; Cell and molecular biology; Cell- och molekylärbiologi;

    Abstract : The detection and analysis of biomolecules, such as proteins, are of great interest since these molecules are fundamental for life and our health. Due to the complexity of biological processes, there is a great advantage of studying proteins in their natural context, for example by using bioimaging. READ MORE

  5. 13. Electric DNA arrays for determination of pathogenic Bacillus cereus

    Author : Yanling Liu; Sven-Olof Enfors; Helena Anderson; KTH; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bacillus cereus; haemolysin; non-haemolytic enterotoxin; cytotoxin K-2; cereulide; toxin-coding genes; bacterial colony; electric DNA chip; ultrasonication; DNA fragmentation; Biochemistry; Biokemi;

    Abstract : Silicon-based electric chip arrays were developed for characterization of Bacillus cereus with respect to the capacity to produce toxins involved in food poisoning and foodborne infections. Bacteria of the B. cereus group contain different sets of four toxins encoded by eight genes. READ MORE

  6. 14. First As Probe, Then As Function - Fluorescence in Bio-inspired Nanotechnology

    Author : Jonas Hannestad; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; self-assembly; lipid membrane; bio-inspired; FRET; light-harvesting; spectroscopy.; fluorescence; nanotechnology; single molecule fluorescence spectroscopy; DNA;

    Abstract : In this thesis, I demonstrate how fluorescence can be used in the context of bio-inspired nanotechnology, both as an indirect probe and as a function in itself. By combining principles and molecules from three different bio-molecular systems, DNA, bacterial light-harvesting complexes and cell membranes, I have constructed nano- and microscale systems for long-range excitation energy transfer, light-harvesting and reaction control. READ MORE

  7. 15. Ribosome display for selection and evolution of affibody molecules

    Author : Sebastian Grimm; Per-Åke Nygren; Mike Taussig; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; affibody; ribosome display; phage display; combinatorial protein engineering; library; murine IgG1; SATB1; Ras; Raf; Genetic engineering including functional genomics; Genteknik inkl. funktionsgenomik; SRA - Molecular Bioscience; SRA - Molekylär biovetenskap;

    Abstract : Affinity proteins are invaluable tools in biotechnological and medical applications. This thesis is about combinatorial protein engineering principles for the generation of novel affinity proteins to purify mouse immunoglobulin, detect a potential cancer marker protein or inhibit a cell proliferation pathway. READ MORE