Sökning: "imaging mass spectrometry"

Visar resultat 1 - 5 av 90 avhandlingar innehållade orden imaging mass spectrometry.

  1. 1. Novel strategies to increase throughput and differentiate lipid isomers in mass spectrometry imaging : Development of computational tools and complex mass spectrometric methods for nanospray desorption electrospray ionization

    Författare :Johan Lillja; Ingela Lanekoff; Daniel Globisch; Orešič Matej; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mass spectrometry; Mass spectrometry imaging; Tandem mass spectrometry; Silver cationization; Mathematical modeling; Lipid; Lipid isomer; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Sammanfattning : In this thesis, method development for improved analyte identification and throughput in mass spectrometry imaging (MSI) is discussed. In MSI, the spatial distribution of analytes from a sample is determined and visualized, information about the detected molecules interaction within the sample can thereby the deduced. LÄS MER

  2. 2. Analytical developments and applications of ambient mass spectrometry imaging : Visualizing challenging analytes and understanding chemical mechanisms of ischemic stroke

    Författare :Leonidas Mavroudakis; Ingela Lanekoff; Daniel Globisch; Malcolm Clench; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mass spectrometry imaging; ischemic stroke; mass spectrometry; isomers; spatial metabolomics; host-guest; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Sammanfattning : Bioanalytical methods that provide spatial information on molecular distributions are important for deep understanding of chemical mechanisms in health and disease. For instance, the localized action of drugs and metabolites can provide valuable information on metabolism in specific cellular regions, which would not be possible with bulk analysis. LÄS MER

  3. 3. Applications of nanospray desorption electrospray ionization mass spectrometry : In situ lipid and metabolite analysis from cells to tissue

    Författare :Hilde-Marléne Bergman; Ingela Lanekoff; Jonas Bergquist; Martina Marchetti-Deschmann; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mass spectrometry; mass spectrometry imaging MSI ; nanospray desorption electrospray ionization nano-DESI ; single-cell analysis; neurotransmitter imaging; diabetic nephropathy; pneumatic nebulization; lipidomics; metabolomics; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Sammanfattning : Ambient mass spectrometry (MS) has proved to be an important addition to the bioanalytical toolbox. These methods perform analyte sampling and ionization under atmospheric pressure, and require very little sample preparation other than the sampling process in front of the machine. LÄS MER

  4. 4. Advanced Mass Spectrometry Imaging in Neuropharmacology

    Författare :Theodosia Vallianatou; Per E. Andrén; Anna Nilsson; Mohammadreza Shariatgorji; Maria Karlgren; Irena Loryan; Nathalie Agar; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mass spectrometry imaging; neuropharmacology; blood brain barrier; drug-drug interactions; aging; tacrine;

    Sammanfattning : Mass spectrometry imaging (MSI) has emerged as a valuable approach for mapping multiple molecular species in sections of diverse tissues. It enables simultaneous detection of numerous compounds (from neurotransmitters to small proteins) in the brain at relatively high lateral resolution (>5 μm) on a routine basis. LÄS MER

  5. 5. Mass Spectrometry-based Neuroproteomics : Deciphering the Human Brain Proteome

    Författare :Sravani Musunuri; Jonas Bergquist; Ganna Shevchenko; Jean-Charles Sanchez; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Brain; Proteomics; Mass spectrometry; Alzheimer s disease; Traumatic brain injury; Membrane proteins; Sample preparation; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Sammanfattning : Mammalian brain is challenging to study due to its heterogeneity and complexity. However, recent advances in molecular imaging, genomics and proteomics have contributed significantly to achieve insights into molecular basis of brain function and pathogenesis of neurological disorders. LÄS MER