Sökning: "phosphate chemistry"

Visar resultat 16 - 20 av 150 avhandlingar innehållade orden phosphate chemistry.

  1. 16. Contribution of polyfluoroalkyl phosphate esters (PAPs) and other precursor compounds to perfluoroalkyl carboxylates (PFCAs) in humans and the environment

    Författare :Ulrika Eriksson; Anna Kärrman; Bert van Bavel; Gunilla Lindström; Jonathan Martin; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PAPs; precursors; PFCA; exposure; indoor dust; human serum; WWTP; bird eggs; Chemistry; Kemi;

    Sammanfattning : Per-and polyfluoroalkyl substances (PFAS) are anthropogenic compounds that have been spread all over the world. The use of fluorotelomer compounds, short-chained homologues, and other PFASs with perfluorinated moieties has emerged recent years. LÄS MER

  3. 17. Calcium phosphate precipitation in blood serum model solutions

    Författare :Karin Sandin; Lars A. Koo; Peter Alberius; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; Oorganisk kemi;

    Sammanfattning : .... LÄS MER

  4. 18. Nucleoside phosphoramidates and related compounds : development of synthetic methods based on H-phosphonate chemistry

    Författare :Inger Kers; Wojciech J. Stec; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Sammanfattning : In this thesis, studies directed towards development of new synthetic methods for the preparation of nucleotide analogues of potential medical value as antisense, antigene or antiviral agents, are described.Two methods for synthesis of N3'->P5' and P3'->N5' phosphoramidate analogues with the nitrogen atom in bridging position of the internucleotide linkage was developed. LÄS MER

  5. 19. Synthesis of inositol phosphoglycans and analogues thereof

    Författare :Katinka Ruda; JS Brimacombe; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi; Organic Chemistry; organisk kemi;

    Sammanfattning : This thesis describes the synthesis of inositol phosphoglycans (IPG) corresponding to glycosyl-phosphatidylinositol (GPI) anchors found on the cell surface of the parasite Leishmania. Synthesis of an IPG which is a putative second messenger for insulin, and of analogues thereof is also discussed. LÄS MER

  7. 20. Modeling DNA Damage

    Författare :Patric Schyman; Aatto Laaksonen; Sason Shaik; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DNA; Ionizing radiation; DNA radicals; Strand break; Hydrogen abstraction; Density Functional Theory; Car-Parrinello Molecular Dynamics; QM MM; Physical chemistry; Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : In this thesis methods of computational chemistry have been used to examine DNA damaging processes initiated by ionizing radiation, free radicals, or Low-Energy Electrons (LEE). The computational chemistry method based on quantum mechanics that has been mainly used here is the Density Functional Theory (DFT). LÄS MER