Sökning: "carbon-11"

Visar resultat 1 - 5 av 21 avhandlingar innehållade ordet carbon-11.

  1. 1. Development of Palladium-Promoted 11C/12C-Carbonylations and Radiosynthesis of Amyloid PET Ligands

    Författare :Patrik Nordeman; Gunnar Antoni; Mats Larhed; Luke R Odell; Antony D Gee; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Palladium; Carbonylation; Positron emission tomography; PET; Carbon-11; Fluor-18; Radiochemistry; Amyloidosis; Palladium; Karbonyleringar; Positronemissionstomografi; PET; Kol-11; Fluor-18; Radiokemi; Amyloidos; Pharmaceutical Science; Farmaceutisk vetenskap; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi; Medicinal Chemistry; Läkemedelskemi;

    Sammanfattning : In the first part of this thesis, palladium(0)-catalyzed and -mediated carbonylations are discussed. Paper I describes a new method for the safe, efficient use of a solid carbon monoxide source in the synthesis of primary and secondary benzamides. LÄS MER

  3. 2. Visualization of Peripheral Pain Generating Processes and Inflammation in Musculoskeletal Tissue using [11C]-D-deprenyl PET

    Författare :Mikko Aarnio; Torsten Gordh; Jens Sörensen; Magnus Peterson; Lars Ståhle; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ankle injuries; arthritis; binding site; binding target; carbon-11; deprenyl; high-throughput screening; inflammation; monoamine oxi-dase; pain; PET; whiplash; Anestesiologi och intensivvård; Anaesthesiology and Intensive Care;

    Sammanfattning : An objective visualization and quantification of pain-generating processes in the periphery would alter pain diagnosis and represent an important paradigm shift in pain research. Positron emission tomography (PET) radioligand [11C]-D-deprenyl has shown an elevated uptake in painful inflammatory arthritis and whiplash-associated disorder. LÄS MER

  4. 3. Synthesis of 11C-labelled Alkyl Iodides : Using Non-thermal Plasma and Palladium-mediated Carbonylation Methods

    Författare :Jonas Eriksson; Bengt Långström; Philip H. Elsinga; Uppsala universitet; []
    Nyckelord :Organic chemistry; isotopic labelling; carbon-11; alkyl iodides; acrylamides; specific radioactivity; carbonylation; carbon monoxide; non-thermal plasma; PET; Organisk kemi;

    Sammanfattning : Compounds labelled with 11C (β+, t1/2 = 20.4 min) are used in positron emission tomography (PET), which is a quantitative non-invasive molecular imaging technique. It utilizes computerized reconstruction methods to produce time-resolved images of the radioactivity distribution in living subjects. LÄS MER

  5. 4. Production of photoneutron beams and radionuclides by photonuclear reactions using a 50 MeV racetrack microtron

    Författare :Bo Nordell; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Neutron therapy; Photoneutron spectrum; Bremsstrahlung; Angular distribution; Carbon 11; Iodine 123;

    Sammanfattning : The feasibility of using electrons accelerated by a 50 MeV racetrack microtron to generate a mixed beam of neutrons and photons for radiation therapy and for production of radionuclides has been investigated.To develop target systems for these purposes the angular distribution and yield of bremsstrahlung from different targets have been studied theoretically. LÄS MER

  7. 5. Exploring Palladium-Mediated 11C/12C-Carbonylation Reactions : PET Tracer Development Targeting the Vesicular Acetylcholine Transporter

    Författare :Sara Roslin; Mats Larhed; Gunnar Antoni; Jonas Eriksson; Luke Odell; Victor Pike; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Carbonylation; palladium; carbon-11; radiochemistry; positron emission tomography; vesicular acetylcholine transporter; vesamicol; alkyl halide; oxidative carbonylation; acylamidine; oxadiazole; heterocycle; Farmaceutisk vetenskap; Pharmaceutical Science;

    Sammanfattning : The work presented herein describes the utilization and exploration of palladium-mediated incorporations of carbon monoxide and/or [11C]carbon monoxide into compounds and structural motifs with biological relevance.The first part of the thesis describes the design, synthesis and 11C-labeling of prospective PET tracers for the vesicular acetylcholine transporter (VAChT), a target affected in several neurodegenerative diseases. LÄS MER