Stefan Grass

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Poly(n-butyl-cyanoacrylate)-nanocapsules filled by perfluorodecalin (PFD) are proposed as potential oxygen carriers for blood substitute. The capsule dispersion is prepared via interfacial polymerisation from a PFD emulsion in water which in turn is generated by spontaneous phase separation. The resulting dispersion is capable of carrying approximately 10%(More)
OBJECTIVES Our aim was to estimate the number of non-satisfied instutionalization requests for inpatients and to describe the strategies elaborated to compensate for the waiting time. METHODS This prospective follow-up study concerning all requests for institution admission for inpatients aged 75 years or older hospitalized in acute care and(More)
The deliquescence behavior of ternary inorganic (ammonium sulfate and ammonium nitrate)/organic (glutaric acid and malonic acid)/water aerosol particles has been investigated at 293 K using a novel surface aerosol microscopy (SAM) technique. The results obtained for the deliquescence relative humidities (DRH) for particles of variable inorganic/organic(More)
Twenty subjects with diagnosed Mitral Valve Prolapse (MVP) were interviewed regarding self-care needs. Transcripts were analyzed for evidence of perceived health state and altered body image. The majority of subjects described experiences indicating that their perceptions of body image and health state were affected by the diagnosis of MVP. Using Smith's(More)
In summary, the scientific literature on mitral valve prolapse reveals many unanswered questions about the significance of MVP. Patients with MVP exhibit a wide range of symptoms and problems, ranging from none to serious and disabling ones. Although the prognosis is highly favorable in the majority of cases, patients with significant symptoms may not(More)
All over the world, different types of nanomaterials with a diversified spectrum of applications are designed and developed, especially in the field of nanomedicine. The great variety of nanoparticles (NPs), in vitro test systems and cell lines led to a vast amount of publications with conflicting data. To identify the decisive principles of these(More)
Chemical approaches to metal NP synthesis commonly use capping agents to achieve a desired NP size and shape. Frequently, such NPs require chemically different surface ligands after synthesis to generate desired NP properties (e.g., charge or hydrophilicity) and to increase their long term colloidal stability. Here, we prepared SERS active(More)
Epidemiological studies in the United States indicate that 5% of the population or nearly 7 million people have Mitral Valve Prolapse. This incidence has also been confirmed by British physicians. Approximately half of these persons seek medical care for treatment of symptoms. Persons with symptoms are often said to have "Mitral Valve Prolapse Syndrome."(More)
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