Sökning: "Kerstin Ramser"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Kerstin Ramser.
1. Optical manipulation and spectroscopy of single cells and silver nanoparticles in solution
Sammanfattning : .... LÄS MER
2. Optical manipulation and spectroscopy of single functional globin-containing cells in microfluidic systems
Sammanfattning : Recent advances in microbiology and biomedicine require development of tools to monitor the response of single cells to environmental stimuli under controlled physiological conditions. In this thesis, I describe how this can be achieved by combining various spectroscopic techniques with optical tweezers and microfluidic systems. LÄS MER
3. Direct imaging of Stimulated Raman scattering : 3D spatial control and spatial generation
Sammanfattning : Stimulated Raman scattering (SRS) is a powerful imaging technique that has become popular during the last decades for its ability to image species specific in a sample with high accuracy. The purpose of this thesis is twofold. Firstly, to demonstrate 3D spatial control of where in the sample SRS is generated. LÄS MER
4. Optical Monitoring of Cerebral Microcirculation
Sammanfattning : The cerebral microcirculation consists of a complex network of small blood vessels that support nerve cells with oxygen and nutrition. The blood flow and oxygen delivery in the microcirculatory blood vessels are regulated through mechanisms which may be influenced or impaired by disease or brain damage resulting from conditions such as brain tumors, traumatic brain injury or subarachnoid hemorrhage (SAH). LÄS MER
5. Development of Methods to Investigate Pulmonary Arterial Smooth Muscle Cells under Hypoxia
Sammanfattning : Hypoxic pulmonary vasoconstriction (HPV) is a physiological response to localized alveolarhypoxia that is intrinsic to the pulmonary circulation. By hypoxia-induced contractionof pulmonary arterial smooth muscle cells (PASMCs), the pulmonary capillary bloodflow is redirected to alveolar areas of high oxygen partial pressure, thus maintaining theventilation-perfusion ratio. LÄS MER