Sökning: "polycyclic aromatic molecules"

Visar resultat 16 - 18 av 18 avhandlingar innehållade orden polycyclic aromatic molecules.

  1. 16. The role of knockout driven fragmentation in collision with isolated complex molecular systems

    Författare :Linda Giacomozzi; Henning Zettergren; Henrik Öström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Knockout processes; PAHs; HPAHs; porphyrins; fysik; Physics;

    Sammanfattning : This licentiate thesis covers results from collision induced dissociation (CID) experiments of Polycyclic Aromatic Hydrocarbons (PAHs), hydrogentated PAHs (HPAHs) and porphyrins. PAHs and HPAHs are believed to play key roles in the evolution of complex molecules in space, while porphyrins are essential for various functions in living organisms. LÄS MER

  3. 17. Towards First-Principles Understanding of Biomolecular Adsorption

    Författare :Svetla Chakarova Käck; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DFT; phenol; adenine; graphite; biomolecules; van der Waals interactions; denaturation; protein; lattice models; PAH dimers; adsorption;

    Sammanfattning : A fundamental understanding of the interactions of biomolecules, such as proteins and DNA, with surfaces is of immense importance in numerous applications and poses a true challenge for theory. Density functional theory (DFT) is a quantum-mechanical tool well established for its ability to balance large system size with good accuracy in first-principles studies. LÄS MER

  4. 18. Biological, physico-chemical and biogeochemical dynamics of hydrophobic organ compounds

    Författare :Johan Axelman; Deborah L. Swackhamer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; zoologisk ekologi; Animal Ecology;

    Sammanfattning : This thesis presents new findings pertaining to several processes that govern the fate and effects of hydrophobic organic compounds (HOCs) in the environment. Two groups of HOCs, polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs), have been used as model compounds. LÄS MER