Sökning: "Biological and Biomedical Physics"

Visar resultat 21 - 25 av 31 avhandlingar innehållade orden Biological and Biomedical Physics.

1. 21. Small Particles with Big Impact : Structural Studies of Viruses and Toxicological Studies of Nanodiamonds

   Författare :Anna Munke; Marvin Seibert; Kenta Okamoto; Filipe Maia; Inger Andersson; Nicola Stonehouse; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Chaetenuissarnavirus II; cryo-EM; CtenRNAV-II; Escherichia coli; Danio rerio; flash X-ray imaging; Marnaviridae; single-particle analysis; single-particle imaging; Sogarnavirus; virus evolution; virus structure; XFEL; zebrafish embryo; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

   Sammanfattning : Nanoparticles (NPs) can be found everywhere and their existence has both beneficial and harmful consequences for the environment and living beings. The investigations on which this thesis is based upon have contributed to an increased understanding of some of these particles and to the development of a method that could be used to study their structure. LÄS MER

3. 22. Preclinical X-Ray Fluorescence Imaging with Multifunctional Nanoparticles

   Författare :Giovanni Marco Saladino; Hans Hertz; Muhammet Toprak; Stefan Andersson-Engels; KTH; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biological and Biomedical Physics; Biologisk och biomedicinsk fysik;

   Sammanfattning : X-ray fluorescence imaging (XFI) is an emerging technique for preclinical studies, characterized by high resolution, specificity, and sensitivity. It relies on nanoparticles (NPs) as contrast agents, which must be constituted of specific elements that match the X-ray source energy for detection. LÄS MER

4. 23. Virtual histology by laboratory x-ray phase-contrast tomography

   Författare :Jenny Romell; Hans Hertz; Anna Burvall; Julia Herzen; KTH; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biological and Biomedical Physics; Biologisk och biomedicinsk fysik;

   Sammanfattning : Detailed imaging of biological samples is central to different fields of research, as well as for clinical pathology. Classical histology, using light- orelectron microscopy, can generate high-resolution images but is destructive and only gives two-dimensional information. LÄS MER

5. 24. Light Propagation and Gas Absorption Studies in Turbid Media Using Tunable Diode Llaser Techniques

   Författare :Liang Mei; Atomfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; gas in scattering media absorption spectroscopy; tunable diode laser absorption spectroscopy; frequency modulated light scattering interferometry; light propagation; Absorption spectroscopy; turbid media; diode laser; gas monitoring; porous media; ceramics; food packaging; Fysicumarkivet A:2014:Mei;

   Sammanfattning : Optical absorption spectroscopy is a widely used analytical tool for constituent analysis in many applications. According to the Beer-Lambert law, the transmitted light intensity through a homogeneous medium is an exponential function of the product of the concentration, the total pathlength, and the absorption cross-section of the absorbing substance. LÄS MER

7. 25. Molecular-dynamics simulations of polymeric surfaces for biomolecular applications

   Författare :Stela Andrea Muntean; M.A.J. Michels; M.W.J. Prins; A.V. Lyulin; Technische Universiteit Eindhoven; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polystyrenes; Molecular Dynamics; Computer Simulation; Water; Molecules; Atoms; Hydrophilicity; Biosensors; Myoglobin; Physics; Fysik;

   Sammanfattning : In-vitro diagnostics plays a very important role in the present healthcare system. It consists of a large variety of medical devices designed to diagnose a medical condition by measuring a target molecule in a sample, such as blood or urine. LÄS MER