Refine
Year of publication
- 2009 (199) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (76)
- INB - Institut für Nano- und Biotechnologien (32)
- Fachbereich Wirtschaftswissenschaften (31)
- IfB - Institut für Bioengineering (28)
- Fachbereich Elektrotechnik und Informationstechnik (23)
- Fachbereich Chemie und Biotechnologie (18)
- Fachbereich Energietechnik (15)
- Fachbereich Luft- und Raumfahrttechnik (9)
- Fachbereich Bauingenieurwesen (8)
- Fachbereich Maschinenbau und Mechatronik (8)
Document Type
- Article (199) (remove)
Keywords
- Atomausstieg (1)
- Blitzschutz (1)
- EGG (1)
- Europäische Energiepolitik (1)
- Hühnerzucht (1)
- Kernenergie (1)
- Larynx position (1)
- Tomography (1)
- Transfer impedance (1)
- Unterhaltung (1)
Kommentierung zu §§ 705-740
(2009)
An immunochromatographic lateral flow dipstick assay for the fast detection of microcystin-LR was developed. Colloid gold particles with diameters of 40 nm were used as red-colored antibody labels for the visual detection of the antigen. The new dipstick sensor is capable of detecting down to 5 µg·l−1 (ppb; total inversion of the color signal) or 1 ppb (observation of color grading) of microcystin-LR. The course of the labeling reaction was observed via spectrometric wave shifts caused by the change of particle size during the binding of antibodies. Different stabilizing reagents showed that especially bovine serum albumin (BSA) and casein increase the assays sensitivity and the conjugate stability. Performance of the dipsticks was quantified by pattern processing of capture zone CCD images. Storage stability of dipsticks and conjugate suspensions over 115 days under different conditions were monitored. The ready-to-use dipsticks were successfully tested with microcystin-LR-spiked samples of outdoor drinking- and salt water and applied to the tissue of microcystin-fed mussels.
Nitratfreie Molke
(2009)
The monolithic scintillator block approach for gamma detection in the Positron Emission Tomography (PET) avoids estimating Depth of Interaction (DOI), reduces dead zones in detector and diminishes costs of detector production. Neural Networks (NN) are very efficient to determine the entrance point of a gamma incident on a scintillator block. This paper presents results on the robustness of the spatial resolution as a function of the random fraction in the data, temperature and HV fluctuations. This is important when implementing the method in a real scanner. Measurements were done with two Hamamatsu S8550 APD arrays, glued on a 20 Ã 20 Ã 10 mm3 monolithic LSO crystal block.