TY - JOUR A1 - Poghossian, Arshak A1 - Cherstvy, A. A1 - Ingebrandt, S. A1 - Offenhäusser, A. A1 - Schöning, Michael Josef T1 - Possibilities and limitations of label-free detection of DNA hybridization with field-effect-based devices JF - Sensors and Actuators B. 111-112 (2005) Y1 - 2005 SN - 0925-4005 N1 - Eurosensors XVIII 2004 — The 18th European Conference on Solid-State Transducers SP - 470 EP - 480 ER - TY - JOUR A1 - Maggakis-Kelemen, Christina A1 - Digel, Ilya A1 - Artmann, Gerhard T1 - Polystyrene sulfonate/Polyallylamine hydrochloride microcapsules as potential artificial red blood cells - improvement of capsule flexibility JF - Biomedizinische Technik. 50 (2005), H. Erg.-Bd. 1 Y1 - 2005 SP - 324 EP - 326 ER - TY - JOUR A1 - Poghossian, Arshak A1 - Platen, J. A1 - Schöning, Michael Josef T1 - Towards self-aligned nanostructures by means of layerexpansion technique JF - Electrochimica Acta. 51 (2005), H. 5 Y1 - 2005 SN - 0013-4686 SP - 838 EP - 843 ER - TY - BOOK A1 - Laack, Walter van T1 - Mit Logik die Welt begreifen Y1 - 2005 SN - 978-3-936624-07-6 N1 - auch als Taschenbuch ISBN 978-3-936624-04-5 PB - van Laack CY - Aachen ER - TY - JOUR A1 - Temiz Artmann, Aysegül A1 - Linder, Peter A1 - Kayser, Peter A1 - Digel, Ilya T1 - NMR in vitro effects on proliferation, apoptosis, and viability of human chondrocytes and osteoblasts JF - Methods and findings in Experimental and Clinical Pharmacology. 27 (2005), H. 6 Y1 - 2005 SN - 0379-0355 SP - 391 EP - 394 ER - TY - JOUR A1 - Khodaverdi, M. A1 - Chatziioannou, A. F. A1 - Weber, S. A1 - Ziemons, Karl A1 - Halling, H. A1 - Pietrzyk, Uwe T1 - Investigation of different MicroCT scanner configurations by GEANT4 simulations JF - IEEE Transactions on Nuclear Science N2 - This study has been performed to design the combination of the new ClearPET (ClearPET is a trademark of the Crystal Clear Collaboration), a small animal positron emission tomography (PET) system, with a micro-computed tomography (microCT) scanner. The properties of different microCT systems have been determined by simulations based on GEANT4. We will demonstrate the influence of the detector material and the X-ray spectrum on the obtained contrast. Four different detector materials (selenium, cadmium zinc telluride, cesium iodide and gadolinium oxysulfide) and two X-ray spectra (a molybdenum and a tungsten source) have been considered. The spectra have also been modified by aluminum filters of varying thickness. The contrast between different tissue types (water, air, brain, bone and fat) has been simulated by using a suitable phantom. The results indicate the possibility to improve the image contrast in microCT by an optimized combination of the X-ray source and detector material. Y1 - 2005 SN - 0018-9499 VL - 52 IS - 1 SP - 188 EP - 192 ER - TY - CHAP A1 - Kloock, Joachim P. A1 - Moreno, Lia A1 - Huachupoma, Samuel A1 - Xu, Jing A1 - Wagner, Torsten A1 - Bratov, Andrey V. A1 - Doll, Theodor A1 - Vlasov, Yuri G. A1 - Schöning, Michael Josef ED - Gerlach, Gerald T1 - Halbleiterbasierte Schwermetallsensorik auf der Basis von Chalkogenidgläsern für zukünftige „Lab on Chip“-Anwendungen T2 - 7. Dresdner Sensor-Symposium - Neue Herausforderungen und Anwendungen in der Sensortechnik Y1 - 2005 SN - 3-938863-29-3 SP - 221 EP - 224 PB - TUDpress, Verl. der Wissenschaften CY - Dresden ER - TY - JOUR A1 - Ziemons, Karl A1 - Auffray, Etiennette A1 - Barbier, Rémi A1 - Brandenburg, G. A1 - Bruyndonckx, Peter A1 - Choi, Yong A1 - Christ, Daniela A1 - Costes, Nicolas A1 - Déclais, Yves R. A. A1 - Devroede, Olivier A1 - Dujardin, Christophe A1 - Fedorovd, A. A1 - Heinrichs, U. A1 - Korzhik, Mikhail V. A1 - Krieguer, Magalie A1 - Kuntner, Claudia A1 - Largeron, G. A1 - Lartizien, Carole A1 - Larue, H. A1 - Lecoq, Paul R. A1 - Vieira, Jean Marc T1 - The ClearPET™ project: Development of a 2nd generation high-performance small animal PET scanner JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment N2 - Second generation high-performance PET scanners, called ClearPET™1, have been developed by working groups of the Crystal Clear Collaboration (CCC). High sensitivity and high spatial resolution for the ClearPET camera is achieved by using a phoswich arrangement combining two different types of lutetium-based scintillator materials: LSO from CTI and LuYAP:Ce from the CCC (ISTC project). In a first ClearPET prototype, phoswich arrangements of 8×8 crystals of 2×2×10 mm3 are coupled to multi-channel photomultiplier tubes (Hamamatsu R7600). A unit of four PMTs arranged in-line represents one of 20 sectors of the ring design. The opening diameter of the ring is 120 mm, the axial detector length is 110 mm.The PMT pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the exact pulse starting time, which is subsequently used for coincidence detection. The gantry allows rotation of the detector modules around the field of view. Preliminary data shows a correct identification of the crystal layer about (98±1)%. Typically the energy resolution is (23.3±0.5)% for the luyap layer and (15.4±0.4)% for the lso layer. early studies showed the timing resolution of 2 ns FWHM and 4.8 ns FWTM. the intrinsic spatial resolution ranges from 1.37 mm to 1.61 mm full-width of half-maximum (FWHM) with a mean of 1.48 mm FWHM. further improvements in image and energy resolution are expected when the system geometry is fully modeled. Y1 - 2005 SN - 0168-9002 N1 - Proceedings of the 7th International Conference on Inorganic Scintillators and their Use in Scientific and Industrial Applications VL - 537 IS - 1-2 SP - 307 EP - 311 ER -