Sökning: "GEMMA"

Visar resultat 1 - 5 av 17 avhandlingar innehållade ordet GEMMA.

  1. 1. Synthesis of Oligosaccharides for Interaction Studies with Various Lectins

    Författare :Emiliano Gemma; Stefan Oscarson; Martina Lahmann; Hans Kamerling; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi;

    Sammanfattning : In this thesis, the syntheses of oligosaccharides for interaction studies with various lectins are described. The first section reports the syntheses of tetra, tri- and disaccharides corresponding to truncated versions of the glucosylated arm of Glc1Man9(GlcNAc)2, found in the biosynthesis of N-glycans. LÄS MER

  3. 2. Flourescence properties of trendy molecules studied with synchrotron radiation

    Författare :Gemma Vall-Llosera; Elisabeth Rachlew-Källne; Ahmed Al-Khalili; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Sammanfattning : This thesis summarises the experimental results on molecular spectroscopy of gas phase molecules using synchrotron radiation in the UV- VUV and soft-X rays regions. The results of applying Photon Induced Fluorescence Spectroscopy (PIFS) to D2, H2S, H2O and pyrimidine are presented and discussed. LÄS MER

  4. 3. Synchrotron radiation studies of gas phase molecules : from hydrogen to DNA sugars

    Författare :Gemma Vall-llosera; Elisabeth Rachlew; Stacey Sorensen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; KTH thesis; synchrotron radiation; gas phase; bio molecules; Atomic and molecular physics; Atom- och molekylfysik;

    Sammanfattning : This thesis summarises experimental results on the molecular spectroscopy of gas phase molecules excited by synchrotron radiation in the VUV and soft X-ray regions. We have used three different detection techniques, photon induced fluorescence spectroscopy, photoionisation mass spectroscopy and near edge X-ray absorption fine structure spectroscopy to study molecular deuterium, hydrogen sulphide, ammonia, methanol, pyridine, pyridazine, pyrimidine, pyrazine, s-triazine, and 2-deoxy-D-ribose, the last one also known as the DNA sugar. LÄS MER

  5. 4. Evaluation of Biological Biomaterial Properties using Microfluidic Systems

    Författare :Abdul Raouf Atif; Gemma Mestres; Séverine Le Gac; Uppsala universitet; []
    Nyckelord :Bone; Flow; Hydroxyapatite; In vitro; Modelling; On-chip; PDMS; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology;

    Sammanfattning : Despite increased orthopedic biomaterial research activity over previous decades, relatively few novel biomaterials have made it to clinical use. This may partially be due to the inability of existing in vitro testing routines to sufficiently replicate the physiological environment, leading to potentially inaccurate assessments of a biomaterial’s therapeutic potential. LÄS MER

  7. 5. Exploring microfluidics as a tool to study cell-biomaterial interactions

    Författare :Sarah-Sophia Carter; Gemma Mestres; Marlon Schneider; Uppsala universitet; []
    Nyckelord :Bone; Cement; Flow; Hydroxyapatite; In vitro; On-chip; Titanium; Engineering Science with specialization in Biomedical Engineering; Teknisk fysik med inriktning mot medicinsk teknik;

    Sammanfattning : Considering the tremendous amount of research on the development of novel biomaterials, relatively few of these have reached the patient. This can at least in part be explained by the lack of predictive power of the currently used in vitro models, which are nowadays recognized to be too reductionist to accurately predict in vivo complexity. LÄS MER