Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Patrick Knappe"'
Autor:
Patrick Knappe, Lutz Trahms, Dietmar Eberbeck, Andreas F. Thünemann, Norbert Löwa, Frank Wiekhorst
Publikováno v:
Journal of Magnetism and Magnetic Materials. 380:266-270
Resovist ® originally developed as a clinical liver contrast agent for Magnetic Resonance Imaging exhibits also an outstanding performance as a tracer in Magnetic Particle Imaging (MPI). In order to study the physical mechanism of the high MPI perfo
Autor:
Patrick Knappe, Andreas F. Thünemann, Dietmar Eberbeck, Lutz Trahms, Frank Wiekhorst, Norbert Löwa
Publikováno v:
IEEE Transactions on Magnetics. 51:1-4
We studied the magnetic resonance imaging liver contrast agent Resovist by a variety of magnetic measurement techniques, in order to understand the physical mechanism of their high magnetic particle imaging (MPI) performance, with a focus on the size
Autor:
Andreas F. Thünemann, Matthias Girod, Patrick Knappe, Birgit Niemann, Steffen M. Weidner, Alfonso Lampen, Ronald Maul, Ulf Hansen, Linda Böhmert
Publikováno v:
Nanotoxicology. 8:631-642
Orally ingested nanoparticles may overcome the gastrointestinal barrier, reach the circulatory system, be distributed in the organism and cause adverse health effects. However, ingested nanoparticles have to pass through different physicochemical env
Autor:
Patrick, Knappe, Linda, Boehmert, Ralf, Bienert, Silvana, Kamutzki, Silvana, Karmutzki, Birgit, Niemann, Alfonso, Lampen, Andreas F, Thünemann
Publikováno v:
Journal of Chromatography A. 1218:4160-4166
Nanoparticles are not typically ready-to-use for in vitro cell culture assays. Prior to their use in assays, powder samples containing nanoparticles must be dispersed, de-agglomerated, fractionated by size, and characterized with respect to size and
Publikováno v:
Macromolecular Chemistry and Physics. 211:2148-2153
Polyelectrolytes such as PAA and its salts are widely used, but are notoriously difficult to characterize due to their polyelectrolyte properties and broad molecular mass distributions. In this paper, we report on a new PAA analysis by combining asym
Publikováno v:
Polymer. 51:1723-1727
We report on the characterization of the solution structure of poly( N -vinyl-2-pyrrolidone)s (PVP) by small-angle X-ray scattering (SAXS) and by online coupling of asymmetrical flow field-flow fractionation (A4F), SAXS and dynamic light scattering (
Publikováno v:
Analytical Chemistry. 81:296-301
The dispersed iron oxide nanoparticles of ferrofluids in aqueous solution are difficult to characterize due to their protective polymer coatings. We report on the bimodal size distribution of superparamagnetic iron oxide nanoparticles found in the MR
Autor:
Andreas F. Thünemann, S. Juling, Johanna Ebmeyer, Dajana Lichtenstein, Patrick Knappe, Sören Selve, Albert Braeuning, Linda Böhmert, Alfonso Lampen, Birgit Niemann
Publikováno v:
Biological chemistry. 396(11)
Because of the rising application of nanoparticles in food and food-related products, we investigated the influence of the digestion process on the toxicity and cellular uptake of silver nanoparticles for intestinal cells. The main food components
Publikováno v:
Analytical and bioanalytical chemistry. 401(1)
Matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) imaging of polystyrenes with various molecular masses was applied to study spatial molecular mass distribution of polymers in sample spots prepared by the “dried droplet” meth
Autor:
Patrick Knappe, Johanna Ebmeyer, Dajana Lichtenstein, Albert Braeuning, S. Juling, Linda Böhmert, Sören Selve, Andreas F. Thünemann, Birgit Niemann, Alfonso Lampen
Publikováno v:
Toxicology Letters. 238:S197