TY  - THES
A1  - Tran, Thanh Ngoc
T1  - Limit and shakedown analysis of plates and shells including uncertainties
Y1  - 2008
N1  - Chemnitz, Techn. Univ., Diss., 2008
ER  - 
TY  - JOUR
A1  - Kraft, Bodo
A1  - Nagl, Manfred
T1  - Visual Knowledge Specification for Conceptual Design: Definition and Tool Support
N2  - In: Advanced Engineering Informatics. Vol 21, Issue 1, 2007, Pages 67-83 http://dx.doi.org/10.1016/j.aei.2006.10.001 eds. J.C. Kunz, I.F.C. Smith and T. Tomiyama, Elsevier, Seite 1-22 Current CAD tools are not able to support the conceptual design phase, and none of them provides a consistency analysis for sketches produced by architects. This phase is fundamental and crucial for the whole design and construction process of a building. To give architects a better support, we developed a CAD tool for conceptual design and a knowledge specification tool. The knowledge is specific to one class of buildings and it can be reused. Based on a dynamic and domain-specific knowledge ontology, different types of design rules formalize this knowledge in a graph-based form. An expressive visual language provides a user-friendly, human readable representation. Finally, a consistency analysis tool enables conceptual designs to be checked against this formal conceptual knowledge. In this article, we concentrate on the knowledge specification part. For that, we introduce the concepts and usage of a novel visual language and describe its semantics. To demonstrate the usability of our approach, two graph-based visual tools for knowledge specification and conceptual design are explained.
KW  - CAD
KW  - CAD
KW  - Bauingenieurwesen
KW  - CAD
KW  - civil engineering
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Zhubanova, Azhar A.
A1  - Digel, Ilya
A1  - Nojima, H.
A1  - Artmann, Gerhard
T1  - The use of bactericidal effects of cluster ions generated by plasma in medical biotechnology
N2  - The most of conventional methods of air purification use the power of a fan to draw in air and pass it through a filter. The problem of bacterial contamination of inner parts of such a type of air conditioners in some cases draws attention towards alternative air-cleaning systems. Some manufacturers offer to use the ozone's bactericidal and deodorizing effects, but the wide spreading of such systems is restricted by the fact that toxic effects of ozone in respect of human beings are well known. In 2000 Sharp Inc. introduced "Plasma Cluster Ions (PCI)" air purification technology, which uses plasma discharge to generate cluster ions (I 0-14 ). This technology has been developed for those customers that are conscious about health and hygiene. In our experiments, we focused on some principal aspects of plasma-generated ions application - time-dependency and irreversibility of bactericidal action, spatial and kinetic characteristics of emitted cluster particles, their chemical targets in the microbial cells.
KW  - Clusterion
KW  - Raumluft
KW  - Luftreiniger
KW  - Plasmacluster ion technology
KW  - Air purification
Y1  - 2007
ER  - 
TY  - CHAP
A1  - Stadler, Andreas M.
A1  - Embs, Jan P.
A1  - Zerlin, Kay
A1  - Digel, Ilya
A1  - Artmann, Gerhard
A1  - Zaccai, Joe
A1  - Büldt, Georg
T1  - Temperature transitions of hemoglobin and cytosolic water diffusion in human red blood cells : [poster]
N2  - Background Hemoglobin interactions in red blood cells Hemoglobin dynamics in human red blood cells Diffusion of H2O in red blood cells
KW  - Erythrozyt
KW  - Hämoglobin
KW  - cytosolic water diffusion
KW  - hemoglobin dynamics
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Staat, Manfred
A1  - Vu, Duc-Khoi
T1  - Limit analysis of flaws in pressurized pipes and cylindrical vessels. Part I: Axial defects
JF  - Engineering Fracture Mechanics. 74 (2007), H. 3
Y1  - 2007
SN  - 0013-7944
SP  - 431
EP  - 450
ER  - 
TY  - JOUR
A1  - Vu, Duc Khoi
A1  - Staat, Manfred
A1  - Tran, Ich Thinh
T1  - Analysis of pressure equipment by application of the primal-dual theory of shakedown
JF  - Communications in Numerical Methods in Engineering. 23 (2007), H. 3
Y1  - 2007
SN  - 1069-8299
SP  - 213
EP  - 225
ER  - 
TY  - JOUR
A1  - Vu, Duc Khoi
A1  - Staat, Manfred
T1  - Shakedown analysis of structures made of materials with temperature-dependent yield stress
JF  - International Journal of Solids and Structures. 44 (2007), H. 13
Y1  - 2007
SN  - 0020-7683
SP  - 4524
EP  - 4540
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Abouzar, Maryam H.
A1  - Christiaens, P.
A1  - Williams, O. A.
A1  - Haenen, K.
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - Nanocrystalline diamond-based field-effect (bio-)chemical sensor
JF  - 8. Dresdner Sensor-Symposium : Sensoren für Umwelt, Klima und Sicherheit, Biosensoren und Biosysteme, Sensoren und Sensorsysteme für die Prozesstechnik, Trends in der Sensortechnik, Materialentwicklung für die Sensorik; 8. Dresdner Sensor-Symposium, 10. - 12. Dezember 2007, Dresden / Gerald Gerlach ... (Hg.)
Y1  - 2007
SN  - 978-3-940046-45-1
N1  - Dresdner Sensor-Symposium <8, 2007, Dresden> ; Dresdner Beiträge zur Sensorik ; 29
SP  - 191
EP  - 194
PB  - TUDpress, Verl. der Wissenschaften
CY  - Dresden
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Abouzar, Maryam H.
A1  - Amberger, F.
A1  - Mayer, D.
A1  - Han, Y.
A1  - Ingebrandt, S.
A1  - Offenhäusser, A.
A1  - Schöning, Michael Josef
T1  - Field-effect sensors with charged macromolecules: Characterisation by capacitance–voltage, constant-capacitance, impedance spectroscopy and atomic-force microscopy methods
JF  - Biosensors and Bioelectronics. 22 (2007), H. 9-10
Y1  - 2007
SN  - 0956-5663
N1  - Selected Papers from the Ninth World Congress On Biosensors. Toronto, Canada 10 - 12 May 2006, Alice X. J . Tang
SP  - 2100
EP  - 2107
ER  - 
TY  - JOUR
A1  - Ingebrandt, S.
A1  - Han, Y.
A1  - Nakamura, F.
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
A1  - Offenhäusser, A.
T1  - Label-free detection of single nucleotide polymorphisms utilizing the differential transfer function of field-effect transistors
JF  - Biosensors and Bioelectronics. 22 (2007), H. 12
Y1  - 2007
SN  - 0956-5663
SP  - 2834
EP  - 2840
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Ingebrandt, S.
A1  - Abouzar, Maryam H.
A1  - Schöning, Michael Josef
T1  - Label-free detection of charged macromolecules by using a field-effect-based sensor platform: Experiments and possible mechanisms of signal generation
JF  - Applied Physics A: Materials Science & Processing. 87 (2007), H. 3
Y1  - 2007
SN  - 0947-8396
N1  - Special Issue “From Surface Science to Nanoscale Devices”
SP  - 517
EP  - 524
ER  - 
TY  - JOUR
A1  - Turek, Monika
A1  - Ketterer, Lothar
A1  - Claßen, Melanie
A1  - Berndt, Heinz
A1  - Elbers, Gereon
A1  - Krüger, Peter
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Development and Electrochemical Investigations of an EIS-(Electrolyte-Insulator-Semiconductor) based Biosensor for Cyanide Detection
JF  - Sensors
Y1  - 2007
SN  - 1424-8220
VL  - 7
IS  - 8
SP  - 1415
EP  - 1426
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Molina, Roberto
A1  - Yoshinobu, Tatsuo
A1  - Kloock, Joachim P.
A1  - Biselli, Manfred
A1  - Canzoneri, Michele
A1  - Schnitzler, Thomas
A1  - Schöning, Michael Josef
T1  - Handheld multi-channel LAPS device as a transducer platform for possible biological and chemical multi-sensor applications
JF  - Electrochimica Acta. 53 (2007), H. 2
Y1  - 2007
SN  - 0013-4686
SP  - 305
EP  - 311
ER  - 
TY  - CHAP
A1  - Müller-Veggian, Mattea
A1  - Kops, Elena Rota
A1  - Quin, Peng
A1  - Herzog, Hans
T1  - MRI Based Attenuation Correction for Brain PET Images
T2  - Advances in medical engineering / [3rd RPT - Remagener Physiktage together with the Second Scientific Workshop of Medical Robotics, Navigation and Visualization ... Remagen ... 7.-9. März 2007]. Thorsten M. Buzug (ed.) Part 1.
N2  - This work describes a procedure to yield attenuation maps from MR images which are used for the absorption correction (AC) of brain PET data. Such an approach could be mandatory for future combined PET and MRI scanners, which probably do not include a transmission facility. T1-weighted MR images were segmented into brain tissue, bone, soft tissue, and sinus; attenuation coefficients corresponding to elemental composition and density as well as to 511 keV photon energy were respectively assigned. Attenuation maps containing up to four compartments were created and forward projected into sinograms with attenuation factors which then were used for AC during reconstruction of FDG-PET data. The commonly used AC based on a radioactive (68Ge) transmission scan served as reference. The reconstructed radioactivity values obtained with the MRI-based AC were about 20% lower than those obtained with PET-based AC if the skull was not taken into account. Considering the skull the difference was still about 10%. Our investigations demonstrate the feasibility of a MRI-based AC, but revealed also the necessity of a satisfying delineation of bone thickness which tends to be underestimated in our first approach of T1-weighted MR image segmentation.
Y1  - 2007
SN  - 978-3-540-68763-4
U6  - http://dx.doi.org/10.1007/978-3-540-68764-1_15
N1  - Springer proceedings in physics ; 114
SP  - 93
EP  - 97
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Christiaens, P.
A1  - Abouzar, Maryam H.
A1  - Poghossian, Arshak
A1  - Wagner, Torsten
A1  - Bijnens, N.
A1  - Williams, O. A.
A1  - Daenen, M.
A1  - Haenen, K.
A1  - Douthéret, O.
A1  - Haen, J. d´
A1  - Mekhalif, Z.
A1  - Schöning, Michael Josef
A1  - Wagner, P.
T1  - pH sensitivity of nanocrystalline diamond films
JF  - Physica status solidi (A). 204 (2007), H. 9
Y1  - 2007
SN  - 0031-8965
SP  - 2925
EP  - 2930
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Molina, R.
A1  - Biselli, Manfred
A1  - Canzoneri, Michele
A1  - Schnitzler, Thomas
A1  - Yoshinobu, Tatsuo
A1  - Schöning, Michael Josef
T1  - A light-addressable potentiometric sensor system for fast, simultaneous and spatial detection of the metabolic activity of biological cells
JF  - Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)
Y1  - 2007
SN  - 1-4244-0841-5
N1  - Eurosensors 21, 2007, Lyon ; International Conference on Solid-State Sensors, Actuators and Microsystems 14, 2007, Lyon
SP  - 1107
EP  - 1110
PB  - IEEE
CY  - Piscataway
ER  - 
TY  - JOUR
A1  - Christiaens, P.
A1  - Abouzar, Maryam H.
A1  - Poghossian, Arshak
A1  - Wagner, Torsten
A1  - Bijnens, N.
A1  - Williams, O. A.
A1  - Daenen, M.
A1  - Haenen, K.
A1  - Schöning, Michael Josef
A1  - Wagner, P.
T1  - Nanocrystalline diamond-based field-effect capacitive pH sensor
JF  - Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)
Y1  - 2007
SN  - 1-4244-0841-5
N1  - Eurosensors 21, 2007, Lyon ; International Conference on Solid-State Sensors, Actuators and Microsystems 14, 2007, Lyon
SP  - 1891
EP  - 1894
PB  - IEEE
CY  - Piscataway
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Chemical and biological field-effect sensors for liquids – a status report
JF  - Handbook of biosensors and biochips / ed. Robert S. Marks ... Bd. 1
Y1  - 2007
SN  - 978-0-470-01905-4
SP  - 395
EP  - 412
PB  - Wiley
CY  - Chichester
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Kloock, Joachim P.
T1  - About 20 years of silicon-based thin-film sensors with chalcogenide glass materials for heavy metal analysis: Technological aspects of fabrication and miniaturization
JF  - Electroanalysis. 19 (2007), H. 19-20
Y1  - 2007
SN  - 1040-0397
SP  - 2029
EP  - 2038
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
T1  - Light-addressable potentiometric sensors (LAPS): recent trends and applications
JF  - Electrochemical sensor analysis / edited by S. Alegret ...
Y1  - 2007
SN  - 978-0-444-53053-0
N1  - Wilson & Wilson's comprehensive analytical chemistry ; 49
SP  - 87
EP  - 128
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Kloock, Joachim P.
A1  - Schöning, Michael Josef
T1  - Determination of cadmium concentration and pH value in aqueous solutions by means of a handheld light-addressable potentiometric sensor (LAPS) device
JF  - Electrochemical sensor analysis / edited by S. Alegret ...
Y1  - 2007
SN  - 978-0-444-53133-9
N1  - Wilson & Wilson's comprehensive analytical chemistry ; 49
SP  - e35
EP  - e44
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Maris, Rob J.
A1  - Ackermann, Hans-Josef
A1  - Otto, Ralph
A1  - Beging, Stefan
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Handheld measurement device for field-effect sensor structures: Practical evaluation and limitations
JF  - Sensors and Actuators B: Chemical  . 127 (2007), H. 1
Y1  - 2007
SN  - 0925-4005
SP  - 217
EP  - 223
ER  - 
TY  - JOUR
A1  - Kaminsky, Radoslav
A1  - Kallweit, Stephan
A1  - Weber, Hans-Joachim
A1  - Claessens, Tom
A1  - Jozwik, Krzystof
A1  - Verdonck, Pascal
T1  - Flow visualization through two types of aortic prosthetic heart valves using stereoscopic high-speed particle image velocimetry
JF  - Artificial organs. 31 (2007), H. 12
Y1  - 2007
SN  - 1525-1594
SP  - 869
EP  - 879
ER  - 
TY  - JOUR
A1  - Kaminsky, Radoslav
A1  - Dumont, K.
A1  - Weber, Hans-Joachim
A1  - Schroll, M.
A1  - Verdonck, P.
T1  - PIV validation of blood-heart valve leaflet interaction modelling
JF  - The International journal of artificial organs. 30 (2007), H. 7
Y1  - 2007
SP  - 640
EP  - 648
PB  - -
ER  - 
TY  - JOUR
A1  - Weber, Hans-Joachim
A1  - Mo, Xiumei
A1  - Chen, Zonggang
T1  - Electrospun nanofibers of collagen-chitosan and P(LLA-CL) for tissue engineering / Mo Xiumei, Chen Zonggang, Hans J. Weber
JF  - Frontiers of materials science in China. 1 (2007), H. 1
Y1  - 2007
SN  - 1673-7377
SP  - 20
EP  - 23
PB  - -
ER  - 
TY  - JOUR
A1  - Linder, Peter
A1  - Digel, Ilya
A1  - Temiz Artmann, Aysegül
A1  - Kayser, Peter
A1  - Porst, Dariusz
A1  - Artmann, Gerhard
T1  - High-throughput testing of mechanical forces generated in thin cell and tissue layers
JF  - Tissue Engineering. 13 (2007), H. 7
Y1  - 2007
SN  - 1076-3279
N1  - Meeting abstract 433
SP  - 1778
EP  - 1778
ER  - 
TY  - JOUR
A1  - Erbayraktar, Zubeyde
A1  - Yilmaz, Osman
A1  - Temiz Artmann, Aysegül
A1  - Cehreli, Ruksan
A1  - Coker, Canan
T1  - Effects of Selenium Supplementation on Antioxidant Defense and Glucose Homeostasis in Experimental Diabetes Mellitus
JF  - Biological Trace Element Research
Y1  - 2007
SN  - 1559-0720
VL  - 118
IS  - 3
SP  - 217
EP  - 226
ER  - 
TY  - JOUR
A1  - Müller-Veggian, Mattea
A1  - Protic, D.
A1  - Krings, T.
A1  - Niessen, S.
T1  - Position-Sensitive Si(Li) Transmission Detectors for the EXL-Experiments at GSI-Darmstadt.
JF  - Scientific Report / GSi Gesellschaft für Schwerionenforschung, Darmstadt. 2007 (2007), H. 1
Y1  - 2007
SN  - 0174-0814
N1  - Fair-Experiments-31; GSI Report 2007-1, June 2007 ; GSI Scientific Report 2006
SP  - 33
ER  - 
TY  - JOUR
A1  - Grotendorst, Johannes
A1  - Eitrich, T.
A1  - Kless, A.
A1  - Druska, C.
T1  - Classification of Highly Unbalanced CYP450 Data of Drugs Using Cost Sensitive Machine Learning Techniques / Eitrich, T. ; Kless, A. ; Druska, C. ; Meyer, W. ; Grotendorst J.
JF  - Journal of Chemical Information and Modeling. 47 (2007), H. 1
Y1  - 2007
SN  - 1549-9596
SP  - 92
EP  - 103
ER  - 
TY  - BOOK
A1  - Laack, Walter van
T1  - To perceive the world with logic
BT  - Walter van Laack. [Transl. by Anneliese Wolstenholme] / 1. ed.
Y1  - 2007
SN  - 978-3-936624-08-3
N1  - Dt. Ausg. u.d.T.: Mit Logik die Welt begreifen ; auch als E-Book ISBN 979-3-936624-09-0
PB  - van Laack
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Behbahani, Mehdi
A1  - Nicolai, M.
A1  - Probst, M.
A1  - Behr, M.
T1  - Simulation of Blood Flow in a Ventricular Assist Device
JF  - inSIDE. 5 (2007), H. 1
Y1  - 2007
SP  - 28
EP  - 31
ER  - 
TY  - JOUR
A1  - Hillen, Walter
A1  - Alper Selver, M.
A1  - Fischer, Felix
A1  - Kuntalp, Mehmet
T1  - A software tool for interactive generation, representation, and systematical storage of transfer functions for 3D medical images / Alper Selver, M. ; Fischer, Felix ; Kuntalp, Mehmet ; Hillen, Walter
JF  - Computer Methods and Programs in Biomedicine. 86 (2007), H. 3
Y1  - 2007
SN  - 0169-2607
SP  - 270
EP  - 280
PB  - -
ER  - 
TY  - JOUR
A1  - Kotliar, Konstantin
A1  - Maier, Mathias
A1  - Bauer, Svetlana
A1  - Feucht, Nikolaus
T1  - Effect of intravitreal injections and volume changes on intraocular pressure: clinical results and biomechanical model / Kotliar, Konstantin ; Maier, Mathias ; Bauer, Svetlana ; Feucht, Nikolaus ; Lohmann, Chris ; Lanzl, Ines
JF  - Acta Ophthalmologica Scandinavica. 85 (2007), H. 7
Y1  - 2007
SN  - 1755-3768
SP  - 777
EP  - 781
PB  - -
ER  - 
TY  - JOUR
A1  - Zerlin, Kay
A1  - Digel, Ilya
A1  - Stadler, Andreas M.
A1  - Büldt, Georg
A1  - Zaccai, Guiseppe
A1  - Artmann, Gerhard
T1  - Dynamics and interactions of hemoglobin in human red blood cells and concentrated hemoglobin solutions
JF  - Regenerative medicine. 2 (2007), H. 5
Y1  - 2007
SN  - 1746-0751
N1  - Proceedings of the 3rd World Congress on Regenerative Medicine. October 18-20, 2007. Leipzig, Germany
SP  - 573
EP  - 573
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Zerlin, Kay
A1  - Temiz Artmann, Aysegül
A1  - Engels, S.
T1  - Protein dynamics in thermosensation
JF  - Regenerative medicine. 2 (2007), H. 5
Y1  - 2007
SN  - 1746-0751
N1  - Proceedings of the 3rd World Congress on Regenerative Medicine. October 18-20, 2007. Leipzig, Germany
SP  - 533
EP  - 533
ER  - 
TY  - JOUR
A1  - Zerlin, Kay
A1  - Kasischke, Nicole
A1  - Digel, Ilya
A1  - Maggakis-Kelemen, Christina
A1  - Temiz Artmann, Aysegül
A1  - Porst, Dariusz
A1  - Kayser, Peter
A1  - Linder, Peter
A1  - Artmann, Gerhard
T1  - Structural transition temperature of hemoglobins correlates with species’ body temperature
JF  - European Biophysics Journal. 37 (2007), H. 1
Y1  - 2007
SN  - 1432-1017
SP  - 1
EP  - 10
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Kurulgan Demirci, Eylem
A1  - Linder, Peter
A1  - Kayser, Peter
T1  - Decrease in extracellular collagen crosslinking after NMR magnetic field application in skin fibroblasts
JF  - Medical and Biological Engineering and Computing. 45 (2007), H. 1
Y1  - 2007
SN  - 1741-0444
SP  - 91
EP  - 97
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zerlin, Kay
A1  - Digel, Ilya
A1  - Stadler, Andreas M.
T1  - Physical discontinuities at body temperature in human red blood cells / Artmann, GM ; Zerlin, K ; Digel, I ; Stadler, A ; Zaccai, G ; Temiz, AA
JF  - Tissue Engineering. 13 (2007), H. 7
Y1  - 2007
SN  - 1076-3279
N1  - TERMIS-EU Meeting Abstracts London, UK September 4–7, 2007
SP  - 1778
EP  - 1778
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Schöning, Michael Josef
T1  - Heavy metal detection with semiconductor devices based on PLD-prepared chalcogenide glass thin films
T2  - Armenian Journal of Physics
Y1  - 2007
SN  - 1829-1171
SP  - 95
EP  - 98
ER  - 
TY  - CHAP
A1  - Tran, Thanh Ngoc
A1  - Staat, Manfred
A1  - Kreißig, R.
T1  - Calculation of load carrying capacity of shell structures with elasto-plastic material by direct methods
N2  - Proceedings of the International Conference on Material Theory and Nonlinear Dynamics. MatDyn. Hanoi, Vietnam, Sept. 24-26, 2007, 8 p. In this paper, a method is introduced to determine the limit load of general shells using the finite element method. The method is based on an upper bound limit and shakedown analysis with elastic-perfectly plastic material model. A non-linear constrained optimisation problem is solved by using Newton’s method in conjunction with a penalty method and the Lagrangean dual method. Numerical investigation of a pipe bend subjected to bending moments proves the effectiveness of the algorithm.
KW  - Finite-Elemente-Methode
Y1  - 2007
ER  - 
TY  - CHAP
A1  - Tran, Thanh Ngoc
A1  - Staat, Manfred
A1  - Kreißig, R.
T1  - Finite element shakedown and limit reliability analysis of thin shells
N2  - A procedure for the evaluation of the failure probability of elastic-plastic thin shell structures is presented. The procedure involves a deterministic limit and shakedown analysis for each probabilistic iteration which is based on the kinematical approach and the use the exact Ilyushin yield surface. Based on a direct definition of the limit state function, the non-linear problems may be efficiently solved by using the First and Second Order Reliabiblity Methods (Form/SORM). This direct approach reduces considerably the necessary knowledge of uncertain technological input data, computing costs and the numerical error. In: Computational plasticity / ed. by Eugenio Onate. Dordrecht: Springer 2007. VII, 265 S. (Computational Methods in Applied Sciences ; 7) (COMPLAS IX. Part 1 . International Center for Numerical Methods in Engineering (CIMNE)). ISBN 978-1-402-06576-7  S. 186-189
KW  - Finite-Elemente-Methode
KW  - Limit analysis
KW  - shakedown analysis
KW  - Exact Ilyushin yield surface
KW  - Random variable
KW  - First Order Reliabiblity Method
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Arampatzis, Adamantios
A1  - Karamanidis, Kiros
A1  - Albracht, Kirsten
T1  - Adaptational responses of the human Achilles tendon by modulation of the applied cyclic strain magnitude
JF  - Journal of Experimental Biology
Y1  - 2007
U6  - http://dx.doi.org/10.1242/jeb.003814
SN  - 0022-0949
VL  - 210
IS  - 15
SP  - 2743
EP  - 2753
ER  - 
TY  - JOUR
A1  - Allefeld, Carsten
A1  - Bialonski, Stephan
T1  - Detecting synchronization clusters in multivariate time series via coarse-graining of Markov chains
JF  - Physical Review E
Y1  - 2007
U6  - http://dx.doi.org/10.1103/PhysRevE.76.066207
SN  - 2470-0053
VL  - 76
IS  - 6
SP  - 066207
ER  - 
TY  - JOUR
A1  - Lehnertz, Klaus
A1  - Mormann, Florian
A1  - Osterhage, Hannes
A1  - Andy, Müller
A1  - Prusseit, Jens
A1  - Chernihovskyi, Anton
A1  - Staniek, Matthäus
A1  - Krug, Dieter
A1  - Bialonski, Stephan
A1  - Elger, Christian E.
T1  - State-of-the-art of seizure prediction
JF  - Journal of Clinical Neurophysiology
Y1  - 2007
U6  - http://dx.doi.org/10.1097/WNP.0b013e3180336f16
SN  - 1537-1603
VL  - 24
IS  - 2
SP  - 147
EP  - 153
ER  - 
TY  - THES
A1  - Trzewik, Jürgen
T1  - Experimental analysis of biaxial mechanical tension in cell monolayers and cultured three-dimensional tissues: the celldrum technology
Y1  - 2007
N1  - Zugl.: Ilmenau, Techn. Univ., Diss., 2007
PB  - Univeristätsverlg Ilmenau
CY  - Ilmenau
ER  - 
TY  - JOUR
A1  - Göddeke, Dominik
A1  - Strzodka, Robert
A1  - Mohd-Yusof, Jamaludin
A1  - McCormick, Patrick
A1  - Buijssen, Sven H.M.
A1  - Grajewski, Matthias
A1  - Turek, Stefan
T1  - Exploring weak scalability for FEM calculations on a GPU-enhanced cluster
JF  - Parallel Computing
Y1  - 2007
U6  - http://dx.doi.org/10.1016/j.parco.2007.09.002
SN  - 0167-8191
VL  - 33
IS  - 10-11
SP  - 685
EP  - 699
ER  - 
TY  - CHAP
A1  - Kraft, Bodo
A1  - Retkowitz, Daniel
T1  - Rule-Dependencies for Visual Knowledge Specification in Conceptual Design
N2  - In: Proc. of the 11th Intl. Conf. on Computing in Civil and Building Engineering (ICCCBE-XI) ed. Hugues Rivard, Montreal, Canada, Seite 1-12, ACSE (CD-ROM), 2006 Currently, the conceptual design phase is not adequately supported by any CAD tool. Neither the support while elaborating conceptual sketches, nor the automatic proof of correctness with respect to effective restrictions is currently provided by any commercial tool. To enable domain experts to store the common as well as their personal domain knowledge, we develop a visual language for knowledge formalization. In this paper, a major extension to the already existing concepts is introduced. The possibility to define rule dependencies extends the expressiveness of the knowledge definition language and contributes to the usability of our approach.
KW  - CAD
KW  - CAD
KW  - Bauingenieurwesen
KW  - CAD
KW  - civil engineering
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Staat, Manfred
A1  - Vu, Khoi Duc
T1  - Limit loads of circumferentially flawed pipes and cylindrical vessels under internal pressure
JF  - International Journal of Pressure Vessels and Piping. 83 (2006), H. 3
Y1  - 2006
SN  - 0308-0161
SP  - 188
EP  - 196
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Abouzar, Maryam H.
A1  - Sakkari, M.
A1  - Kassab, T.
A1  - Han, Y.
A1  - Ingebrandt, S.
A1  - Offenhäusser, A.
A1  - Schöning, Michael Josef
T1  - Field-effect sensors for monitoring the layer-by-layer adsorption of charged macromolecules
JF  - Sensors and Actuators B: Chemical. 118 (2006), H. 1-2
Y1  - 2006
SN  - 0925-4005
N1  - Eurosensors XIX - Eurosensors XIX - The 19th European Conference on Solid-State Transducers
SP  - 163
EP  - 170
ER  - 
TY  - JOUR
A1  - Kloock, Joachim P.
A1  - Moreno, Lia
A1  - Bratov, A.
A1  - Huachupoma, S.
A1  - Xu, J.
A1  - Wagner, Torsten
A1  - Yoshinobu, T.
A1  - Ermolenko, Y.
A1  - Vlasov, Y. G.
A1  - Schöning, Michael Josef
T1  - PLD-prepared cadmium sensors based on chalcogenide glasses —ISFET, LAPS and &#956;ISE semiconductor structures
JF  - Sensors and Actuators B: Chemical. 118 (2006), H. 1-2
Y1  - 2006
SN  - 0925-4005
N1  - Eurosensors XIX - Eurosensors XIX - The 19th European Conference on Solid-State Transducers
SP  - 149
EP  - 155
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Rao, C.
A1  - Kloock, Joachim P.
A1  - Yoshinobu, T.
A1  - Otto, R.
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - “LAPS Card”—A novel chip card-based light-addressable potentiometric sensor (LAPS)
JF  - Sensors and Actuators B: Chemical. 118 (2006), H. 1-2
Y1  - 2006
SN  - 0925-4005
N1  - Eurosensors XIX - Eurosensors XIX - The 19th European Conference on Solid-State Transducers
SP  - 33
EP  - 40
ER  - 
TY  - JOUR
A1  - Dikta, Gerhard
A1  - Kvesic, Marsel
A1  - Schmidt, Christian
T1  - Bootstrap Approximations in Model Checks for Binary Data
JF  - Journal of the American Statistical Association. 101 (2006), H. 474
Y1  - 2006
SN  - 0162-1459
SP  - 521
EP  - 530
ER  - 
TY  - JOUR
A1  - Dikta, Gerhard
T1  - Time series methods to forecast patent filings
JF  - Forecasting innovations : methods for predicting numbers of patent filings ; with 71 tables / Peter Hingley ; Marc Nicolas (ed.),
Y1  - 2006
SN  - 978-3-540-35991-3
U6  - http://dx.doi.org/10.1007/3-540-35992-3_6
N1  - ISBN 3-540-35991-5
SP  - 95
EP  - 124
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Müller-Veggian, Mattea
A1  - Moro, D.
A1  - Ferreti, A.
A1  - Colautti, P.
T1  - The new articulated twin mini TEPC
JF  - Annual Report  2006 / Istituto Nazionale di Fisica Nucleare <Frascati> / Laboratori Nazionali <Legnaro>
Y1  - 2006
SP  - 273
CY  - Legnaro
ER  - 
TY  - JOUR
A1  - Streun, M.
A1  - Chavan, U.
A1  - Lame, H.
A1  - Parl, C.
A1  - Müller-Veggian, Mattea
A1  - Ziemons, Karl
T1  - Treating the Gain Non-Uniformity of Multi Channel PMTs by Channel-Specific Trigger Levels
JF  - 2006 IEEE Nuclear Science Symposium Conference Record, Vol. 2.
Y1  - 2006
SN  - 1082-3654
SP  - 1301
EP  - 1304
CY  - San Diego, CA
ER  - 
TY  - JOUR
A1  - Weber, Hans-Joachim
A1  - Mo, Xiumei
A1  - Ramakrishna, S.
T1  - PCL-PGLA composite tubular scaffold preparation and biocompatibility investigation / X. Mo, H.-J. Weber, S. Ramakrishna
JF  - The International journal of artificial organs. 29 (2006), H. 8
Y1  - 2006
SP  - 790
EP  - 799
PB  - -
ER  - 
TY  - JOUR
A1  - Kaminsky, Radoslav
A1  - Kallweit, Stephan
A1  - Weber, Hans-Joachim
A1  - Simons, Antoine
A1  - Kramm, K.
A1  - Jazwik, K.
A1  - Moll, J.
A1  - Verdonck, P.
T1  - 3D high speed piv assessment of a new aortic heart valve prototype
JF  - Journal of biomechanics. 39 (2006), H. Supplement 1
Y1  - 2006
SN  - 0021-9290
N1  - World Congress of Biomechanics <5, 2006, München>: Abstracts of the 5th World Congress of Biomechanics
SP  - S304
EP  - S305
PB  - -
ER  - 
TY  - BOOK
A1  - Kaminsky, Radoslav
A1  - Kallweit, Stephan
A1  - Weber, Hans-Joachim
A1  - Simons, Antoine
A1  - Verdonck, Pascal
T1  - Stereo high speed PIV measurements behind two different artificial heart valves
Y1  - 2006
N1  - International Symposium on Applications of Laser Techniques to Fluid Mechanics <13, 2006, Lisboa>
ER  - 
TY  - JOUR
A1  - Näther, Niko
A1  - Emmerich, Rüdiger
A1  - Berger, Jörg
A1  - Friedrich, Peter
A1  - Henkel, Hartmut
A1  - Schneider, Andreas
A1  - Schöning, Michael Josef
T1  - A novel gas-phase hydrogen peroxide sensor basing on a combined physical/chemical transduction mechanism
JF  - Nanofunctional materials, nanostructures, and novel devices for biological and chemical detection : November 27 - December 1, 2006, Boston, Massachusetts, USA ; [at the 2006 MRS Fall Meeting].
Y1  - 2006
SN  - 978-1-60423-407-7
N1  - Materials Research Society symposium proceedings ; 951 ; MRS fall meeting ; (2006.11.27-12.01 : ; Boston, Mass.)
SP  - 63
EP  - 68
PB  - Materials Research Soc.
CY  - Warrendale, Pa.
ER  - 
TY  - BOOK
A1  - Grotendorst, Johannes
T1  - Computational Nanoscience: Do it yourself! : winter school, 14 - 22 February 2006, Forschungszentrum Jülich, Germany ; lecture notes / Grotendorst, Johannes
Y1  - 2006
SN  - 3-00-017350-1
N1  - NIC series ; 31 ; Forschungszentrum <Jülich> / John-von-Neumann-Institut für Computing <Jülich>
PB  - NIC
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Grotendorst, Johannes
A1  - Scott, Tony C.
A1  - Aubert-Frécon, Monique
T1  - New Approach for the Electronic Energies of the Hydrogen Molecular Ion / Scott, Tony C. ; Aubert-Frécon, Monique ; Grotendorst, Johannes
JF  - Chemical Physics. 324 (2006), H. 2/3
Y1  - 2006
SN  - 0301-0104
SP  - 323
EP  - 338
ER  - 
TY  - BOOK
A1  - Grotendorst, Johannes
T1  - GALA - Grünenthal Applied Life Science Analysis : Bericht ; [Projektdokumentation] / John von Neumann-Institut für Computing (NIC); Zentralinstitut für Angewandte Mathematik. Achim Kless und Johannes Grotendorst (Hrsg.)
Y1  - 2006
SN  - 3-00-017349-8
N1  - NIC-Serie ; 30 ; John von Neumann-Institut für Computing <Jülich>
PB  - NIC
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Behbahani, Mehdi
A1  - Behr, M.
A1  - Arora, D.
A1  - Coronado, O.
A1  - Pasquali, M.
T1  - CFD Analysis of MicroMed Debakey Pump and Hemolysis Prediction / Behbahani, M. ; Behr, M. ; Arora, D. ; Coronado, O. ; Pasquali, M.
JF  - Artificial Organs. 30 (2006), H. 11
Y1  - 2006
SN  - 1525-1594
N1  - Abstracts 14th Congress of the International Society for Rotary Blood Pumps, Leuven, Belgium, August 31–September 2, 2006 ; S7-4
SP  - A45
EP  - A46
ER  - 
TY  - JOUR
A1  - Kotliar, Konstantin
A1  - Bauer, S. M.
A1  - Zamuraev, L. A.
T1  - Model of the transversely isotropic spherical layer for estimation of intraocular pressure changes after intravitreal injections / Bauer, S. M. ; Zamuraev, L. A. ; Kotliar, K. E.
JF  - Rossiiskii zhurnal biomekhaniki = Russian Journal of biomechanics. 10 (2006), H. 2
Y1  - 2006
SN  - 1812-5123
SP  - 41
EP  - 47
PB  - -
ER  - 
TY  - JOUR
A1  - Kotliar, Konstantin
A1  - Koshitz, I. N.
A1  - Svetlova, O. V.
A1  - Zaseeva, M. V.
T1  - Physiological principles of hypotensive therapy of open-angle glaucoma during presbyopic period. Part I Initial theoretical presuppositions, hypotheses and facts / Koshitz, I. N. ; Svetlova, O. V. ; Zaseeva, M. V. ; Shuhaev, S. V. ; Makarov, F. N. ; Kotli
JF  - Glaukoma (2006)
Y1  - 2006
N1  - Original in Russisch
SP  - 35
EP  - 53
PB  - -
ER  - 
TY  - JOUR
A1  - Kotliar, Konstantin
A1  - Koshitz, I. N.
A1  - Svetlowa, O. V.
A1  - Zaseeva, M. V.
T1  - Physiological principles of hypotensive therapy of open-angle glaucoma during presbyopic period. Part II Promising algorithms of practical sparing applications / Koshitz, I. N. ; Svetlova, O. V. ; Zaseeva, M. V. ; Shuhaev, S. V. ; Makarov, F. N. ; Kotliar
JF  - Glaukoma (2006)
Y1  - 2006
N1  - Original in Russisch
SP  - 51
EP  - 70
PB  - -
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Maggakis-Kelemen, Christina
A1  - Zerlin, Kay
A1  - Linder, Peter
T1  - Body temperature-related structural transitions of monotremal and human hemoglobin
JF  - Biophysical Journal. 91 (2006), H. 8
Y1  - 2006
SN  - 1542-0086
SP  - 3014
EP  - 3021
ER  - 
TY  - JOUR
A1  - Streun, M.
A1  - Brandenburg, G.
A1  - Larue, H.
A1  - Parl, C.
A1  - Ziemons, Karl
T1  - The data acquisition system of ClearPET neuro - a small animal PET scanner
JF  - IEEE Transactions on Nuclear Science
N2  - The Crystal Clear Collaboration has developed a modular system for a small animal PET scanner (ClearPET). The modularity allows the assembly of scanners of different sizes and characteristics in order to satisfy the specific needs of the individual member institutions. The system performs depth of interaction detection by using a phoswich arrangement combining LSO and LuYAP scintillators which are coupled to Multichannel Photomultipliers (PMTs). For each PMT a free running 40 MHz ADC digitizes the signal and the complete scintillation pulse is sampled by an FPGA and sent with 20 MB/s to a PC for preprocessing. The pulse provides information about the gamma energy and the scintillator material which identifies the interaction layer. Furthermore, the exact pulse starting time is obtained from the sampled data. This is important as no hardware coincidence detection is implemented. All single events are recorded and coincidences are identified by software. The system in Jülich (ClearPET Neuro) is equipped with 10240 crystals on 80 PMTs. The paper will present an overview of the data acquisition system.
Y1  - 2006
SN  - 0018-9499
VL  - 53
IS  - 3
SP  - 700
EP  - 703
ER  - 
TY  - JOUR
A1  - Khodaverdi, M.
A1  - Weber, S.
A1  - Streun, M.
A1  - Parl, C.
A1  - Ziemons, Karl
T1  - High resolution imaging with ClearPET™ Neuro - first animal images
JF  - 2005 IEEE Nuclear Science Symposium Conference Record, Vol. 3
N2  - The ClearPET™ Neuro is the first full ring scanner within the Crystal Clear Collaboration (CCC). It consists of 80 detector modules allocated to 20 cassettes. LSO and LuYAP:Ce crystals in phoswich configuration in combination with position sensitive photomultiplier tubes are used to achieve high sensitivity and realize the acquisition of the depth of interaction (DOI) information. The complete system has been tested concerning the mechanical and electronical stability and interplay. Moreover, suitable corrections have been implemented into the reconstruction procedure to ensure high image quality. We present first results which show the successful operation of the ClearPET™ Neuro for artefact free and high resolution small animal imaging. Based on these results during the past few months the ClearPET™ Neuro System has been modified in order to optimize the performance.
Y1  - 2006
SN  - 1082-3654
SP  - 1641
EP  - 1644
ER  - 
TY  - JOUR
A1  - Streun, M.
A1  - Brandenburg, G.
A1  - Khodaverdi, M.
A1  - Larue, H.
A1  - Parl, C.
A1  - Ziemons, Karl
T1  - Timemark correction for the ClearPET™ scanners
JF  - 2005 IEEE Nuclear Science Symposium Conference Record, Vol. 4
N2  - The small animal PET scanners developed by the Crystal Clear Collaboration (ClearPETtrade) detect coincidences by analyzing timemarks which are attached to each event. The scanners are able to save complete single list mode data which allows analysis and modification of the timemarks after data acquisition. The timemarks are obtained from the digitally sampled detector pulses by calculating the baseline crossing of the rising edge of the pulse which is approximated as a straight line. But the limited sampling frequency causes a systematic error in the determination of the timemark. This error depends on the phase of the sampling clock at the time of the event. A statistical method that corrects these errors will be presented
Y1  - 2006
SN  - 1082-3654
SP  - 2057
EP  - 2060
ER  - 
TY  - JOUR
A1  - Mosset, J.-B.
A1  - Devroede, O.
A1  - Krieguer, M.
A1  - Rey, M.
A1  - Vieira, J.-M.
A1  - Jung, J. H.
A1  - Kuntner, C.
A1  - Streun, M.
A1  - Ziemons, Karl
A1  - Auffray, E.
A1  - Sempere-Roldan, P.
A1  - Lecoq, P.
A1  - Bruyndonckx, P.
A1  - Loude, J.-F.
A1  - Tavernier, S.
A1  - Morcel, C.
T1  - Development of an optimized LSO/LuYAP phoswich detector head for the Lausanne ClearPET demonstrator
JF  - IEEE Transactions on Nuclear Science
N2  - This paper describes the LSO/LuYAP phoswich detector head developed for the ClearPET small animal PET scanner demonstrator that is under construction in Lausanne within the Crystal Clear Collaboration. The detector head consists of a dual layer of 8×8 LSO and LuYAP crystal arrays coupled to a multi-anode photomultiplier tube (Hamamatsu R7600-M64). Equalistion of the LSO/LuYAP light collection is obtained through partial attenuation of the LSO scintillation light using a thin aluminum deposit of 20-35 nm on LSO and appropriate temperature regulation of the phoswich head between 30°C to 60°C. At 511keV, typical FWHM energy resolutions of the pixels of a phoswich head amounts to (28±2)% for LSO and (25±2)% for LuYAP. The LSO versus LuYAP crystal identification efficiency is better than 98%. Six detector modules have been mounted on a rotating gantry. Axial and tangential spatial resolutions were measured up to 4 cm from the scanner axis and compared to Monte Carlo simulations using GATE. FWHM spatial resolution ranges from 1.3 mm on axis to 2.6 mm at 4 cm from the axis.
Y1  - 2006
SN  - 0018-9499
VL  - 53
IS  - 1
SP  - 25
EP  - 29
ER  - 
TY  - CHAP
A1  - Näther, Niko
A1  - Poghossian, Arshak
A1  - Platen, J.
A1  - Yoshinobu, T.
A1  - Koudelka-Hep, M.
A1  - Schöning, Michael Josef
T1  - Multi-parameter sensing of both physical and (bio-)chemical quantities using the same transducer principle
T2  - Biochemical sensing utilisation of micro- and nanotechnologies : Warsaw, [23rd - 26th] November 2005 / ed. by M. Mascini ...
Y1  - 2006
SP  - 172
EP  - 181
CY  - Warsaw
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Schubert, J.
A1  - Ermelenko, Y.
A1  - Vlasov, Y. G.
A1  - Bratov, A.
A1  - Schöning, Michael Josef
T1  - Thin-film sensors with chalcogenide glass materials – a general survey
T2  - Biochemical sensing utilisation of micro- and nanotechnologies : Warsaw, [23rd - 26th] November 2005 / ed. by M. Mascini ...
Y1  - 2006
SP  - 92
EP  - 97
CY  - Warsaw
ER  - 
TY  - CHAP
A1  - Schöning, Michael Josef
A1  - Abouzar, Maryam H.
A1  - Wagner, Torsten
A1  - Näther, Niko
A1  - Rolka, David
A1  - Yoshinobu, Tatsuo
A1  - Kloock, Joachim P.
A1  - Turek, Monika
A1  - Ingebrandt, Sven
A1  - Poghossian, Arshak
T1  - A semiconductor-based field-effect platform for (bio-)chemical and physical sensors: From capacitive EIS sensors and LAPS over ISFETs to nano-scale devices
T2  - MRS Proceedings
Y1  - 2006
U6  - http://dx.doi.org/10.1557/PROC-0952-F08-02
N1  - Vol. 952 - Symposium F - Integrated Nanosensors
SP  - 1
EP  - 9
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Poghossian, Arshak
T1  - BioFEDs (field-effect devices) : State-of-the-art and new directions
JF  - Electroanalysis
Y1  - 2006
U6  - http://dx.doi.org/10.1002/elan.200603609
SN  - 1521-4109
VL  - 18
IS  - 19-20
SP  - 1893
EP  - 1900
ER  - 
TY  - CHAP
A1  - Poghossian, Arshak
A1  - Schumacher, Kerstin
A1  - Kloock, Joachim P.
A1  - Rosenkranz, Christian
A1  - Schultze, Joachim W.
A1  - Müller-Veggian, Mattea
A1  - Schöning, Michael Josef
T1  - Functional testing and characterisation of ISFETs on wafer level by means of a micro-droplet cell
N2  - A wafer-level functionality testing and characterisation system for ISFETs (ionsensitive field-effect transistor) is realised by means of integration of a specifically designed capillary electrochemical micro-droplet cell into a commercial wafer prober-station. The developed system allows the identification and selection of “good” ISFETs at the earliest stage and to avoid expensive bonding, encapsulation and packaging processes for nonfunctioning ISFETs and thus, to decrease costs, which are wasted for bad dies. The developed system is also feasible for wafer-level characterisation of ISFETs in terms of sensitivity, hysteresis and response time. Additionally, the system might be also utilised for wafer-level testing of further electrochemical sensors.
KW  - Biosensor
KW  - Biosensorik
KW  - ISFET
KW  - Wafer
KW  - ISFET
KW  - wafer-level testing
KW  - capillary micro-droplet cell
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1259
ER  - 
TY  - CHAP
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
T1  - Preface of the Special Issue of I3S 2005 in Jülich (Germany)
N2  - International Symposium on Sensor Science, I3S 2005 <3; 2005; Juelich, Germany> In: Sensors 2006, 6, 260-261 ISSN 1424-8220
KW  - Biosensor
KW  - I3S 2005
KW  - International Symposium on Sensor Science
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1365
ER  - 
TY  - GEN
A1  - Staat, Manfred
T1  - Engineering Mechanics. Lecture Notes. 2nd edition, translation of the 3rd corrected and extended German edition of "Technische Mechanik"
N2  - English translation of the corrected lectures notes of Sebastian Krämer. Contents 0 Introduction to Mechanics 1 Statics of Rigid Bodies 2 Elastostatics (Strength of Materials) 3 Kinematics 4 Kinetics Literature
KW  - Technische Mechanik
KW  - Mechanics
KW  - Statics
KW  - Elastostatics
KW  - Kinematics
KW  - Kinetics
Y1  - 2006
ER  - 
TY  - GEN
A1  - Staat, Manfred
A1  - Barry, Steve
T1  - Continuum Mechanics with an Introduction to the Finite Element Method / Steve Barry; Manfred Staat. With extensions by Manfred Staat.
N2  - Contents: 1 Introduction 2 One Dimensional Continuum Mechanics 3 Tensors 4 Three Dimensional Stress and Strain 5 Conservation Laws 6 Contiunuum Modelling 7 Plain Problems 8 Questions 9 Reference Information
KW  - Technische Mechanik
KW  - Finite-Elemente-Methode
Y1  - 2006
ER  - 
TY  - CHAP
A1  - Srivastava, Alok
A1  - Singh, Virendra
A1  - Dhand, Chetna
A1  - Kaur, Manindar
A1  - Singh, Tejvir
A1  - Witte, Katrin
A1  - Scherer, Ulrich W.
T1  - Study of swift heavy ion modified conduction polymer composites for application as gas sensor
N2  - A polyaniline-based conducting composite was prepared by oxidative polymerisation of aniline in a polyvinylchloride (PVC) matrix. The coherent free standing thin films of the composite were prepared by a solution casting method. The polyvinyl chloride-polyaniline composites exposed to 120 MeV ions of silicon with total ion fluence ranging from 1011 to 1013 ions/cm2, were observed to be more sensitive towards ammonia gas than the unirradiated composite. The response time of the irradiated composites was observed to be comparably shorter. We report for the first time the application of swift heavy ion modified insulating polymer conducting polymer (IPCP) composites for sensing of ammonia gas.
KW  - Biosensor
KW  - Conducing polymer
KW  - ammonia gas sensors
KW  - swift heavy ions
KW  - polymer composites
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1345
ER  - 
TY  - CHAP
A1  - Chaiyboun, Ali
A1  - Traute, Rüdiger
A1  - Kiesewetter, Olaf
A1  - Ahlers, Simon
A1  - Müller, Gerhard
A1  - Doll, Theodor
T1  - Modular analytical multicomponent analysis in gas sensor arrays
N2  - A multi-sensor system is a chemical sensor system which quantitatively and qualitatively records gases with a combination of cross-sensitive gas sensor arrays and pattern recognition software. This paper addresses the issue of data analysis for identification of gases in a gas sensor array. We introduce a software tool for gas sensor array configuration and simulation. It concerns thereby about a modular software package for the acquisition of data of different sensors. A signal evaluation algorithm referred to as matrix method was used specifically for the software tool. This matrix method computes the gas concentrations from the signals of a sensor array. The software tool was used for the simulation of an array of five sensors to determine gas concentration of CH4, NH3, H2, CO and C2H5OH. The results of the present simulated sensor array indicate that the software tool is capable of the following: (a) identify a gas independently of its concentration; (b) estimate the concentration of the gas, even if the system was not previously exposed to this concentration; (c) tell when a gas concentration exceeds a certain value. A gas sensor data base was build for the configuration of the software. With the data base one can create, generate and manage scenarios and source files for the simulation. With the gas sensor data base and the simulation software an on-line Web-based version was developed, with which the user can configure and simulate sensor arrays on-line.
KW  - Biosensor
KW  - Main sensitivity
KW  - cross sensitivity
KW  - matrix method
KW  - gas sensor array
KW  - modelling
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1358
ER  - 
TY  - CHAP
A1  - Sakthivel, Mariappan
A1  - Weppner, Werner
T1  - Response behaviour of a hydrogen sensor based on ionic conducting polymer-metal interfaces prepared by the chemical reduction method
N2  - A solid-state amperometric hydrogen sensor based on a protonated Nafion membrane and catalytic active electrode operating at room temperature was fabricated and tested. Ionic conducting polymer-metal electrode interfaces were prepared chemically by using the impregnation-reduction method. The polymer membrane was impregnated with tetra-ammine platinum chloride hydrate and the metal ions were subsequently reduced by using either sodium tetrahydroborate or potassium tetrahydroborate. The hydrogen sensing characteristics with air as reference gas is reported. The sensors were capable of detecting hydrogen concentrations from 10 ppm to 10% in nitrogen. The response time was in the range of 10-30 s and a stable linear current output was observed. The thin Pt films were characterized by XRD, Infrared Spectroscopy, Optical Microscopy, Atomic Force Microscopy, Scanning Electron Microscopy and EDAX.
KW  - Biosensor
KW  - Hydrogen sensor
KW  - amperometric sensor
KW  - porous Pt electrode
KW  - chemical reduction method
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1399
ER  - 
TY  - CHAP
A1  - Koplin, Tobias J.
A1  - Siemons, Maike
A1  - Océn-Valéntin, César
A1  - Sanders, Daniel
A1  - Simon, Ulrich
T1  - Workflow for high throughput screening of gas sensing materials
N2  - The workflow of a high throughput screening setup for the rapid identification of new and improved sensor materials is presented. The polyol method was applied to prepare nanoparticular metal oxides as base materials, which were functionalised by surface doping. Using multi-electrode substrates and high throughput impedance spectroscopy (HT-IS) a wide range of materials could be screened in a short time. Applying HT-IS in search of new selective gas sensing materials a NO2-tolerant NO sensing material with reduced sensitivities towards other test gases was identified based on iridium doped zinc oxide. Analogous behaviour was observed for iridium doped indium oxide.
KW  - Biosensor
KW  - High throughput experimentation
KW  - gas sensor
KW  - metal oxide
KW  - doping
KW  - impedance spectroscopy
KW  - nitrogen oxides
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1407
ER  - 
TY  - CHAP
A1  - Näther, Niko
A1  - Juárez, Leon M.
A1  - Emmerich, Rüdiger
A1  - Berger, Jörg
A1  - Friedrich, Peter
A1  - Schöning, Michael Josef
T1  - Detection of hydrogen peroxide (H2O2) at exposed temperatures for industrial processes
N2  - An H2O2 sensor for the application in industrial sterilisation processes has been developed. Therefore, automated sterilisation equipment at laboratory scale has been constructed using parts from industrial sterilisation facilities. In addition, a software tool has been developed for the control of the sterilisation equipment at laboratory scale. First measurements with the developed sensor set-up as part of the sterilisation equipment have been performed and the sensor has been physically characterised by optical microscopy and SEM.
KW  - Biosensor
KW  - Gas sensor
KW  - hydrogen peroxide
KW  - sterilisation
KW  - catalytic decomposition
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1418
ER  - 
TY  - CHAP
A1  - Wagner, Thorsten
A1  - Kohl, Claus-Dieter
A1  - Fröba, Michael
A1  - Tiemann, Michael
T1  - Gas sensing properties of ordered mesoporous SnO2
N2  - We report on the synthesis and CO gas-sensing properties of mesoporous tin(IV) oxides (SnO2). For the synthesis cetyltrimethylammonium bromide (CTABr) was used as a structure-directing agent; the resulting SnO2 powders were applied as films to commercially available sensor substrates by drop coating. Nitrogen physisorption shows specific surface areas up to 160 m2·g-1 and mean pore diameters of about 4 nm, as verified by TEM. The film conductance was measured in dependence on the CO concentration in humid synthetic air at a constant temperature of 300 °C. The sensors show a high sensitivity at low CO concentrations and turn out to be largely insensitive towards changes in the relative humidity. We compare the materials with commercially available SnO2-based sensors.
KW  - Biosensor
KW  - Tin oxide
KW  - sensing properties
KW  - CO
KW  - humidity
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1422
ER  - 
TY  - CHAP
A1  - Mirmohseni, Abdolreza
A1  - Rostamizadeh, Kobra
T1  - Quartz crystal nanobalance in conjunction with principal component analysis for  identification of volatile organic compounds
N2  - Quartz crystal nanobalance (QCN) sensors are considered as powerful masssensitive sensors to determine materials in the sub-nanogram level. In this study, a single piezoelectric quartz crystal nanobalance modified with polystyrene was employed to detect benzene, toluene, ethylbenzene and xylene (BTEX compounds). The frequency shift of the QCN sensor was found to be linear against the BTEX compound concentrations in the range about 1-45 mg l-1. The correlation coefficients for benzene, toluene, ethylbenzene, and xylene were 0.991, 0.9977, 0.9946 and 0.9971, respectively. The principal component analysis was also utilized to process the frequency response data of the single piezoelectric crystal at different times, considering to the different adsorption-desorption dynamics of BTEX compounds. Using principal component analysis, it was found that over 90% of the data variance could still be explained by use of two principal components (PC1 and PC2). Subsequently, the successful identification of benzene and toluene was possible through the principal component analysis of the transient responses of the polystyrene modified QCN sensor. The results showed that the polystyrene-modified QCN had favorable identification and quantification performances for the BTEX compounds.
KW  - Biosensor
KW  - Quartz crystal nanobalance (QCN)
KW  - BTEX compounds
KW  - principal component
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1434
ER  - 
TY  - CHAP
A1  - Kreutz, Christian
A1  - Lörgen, Jürgen
A1  - Graewe, Boris
A1  - Bargon, Joachim
A1  - Yoshida, Mayumi
A1  - Freso, Zachary M.
A1  - Frèchet, Jean M. J.
T1  - High frequency quartz micro balances: a promising path to enhanced sensitivity of gravimetric sensors
N2  - An array of 50 MHz quartz microbalances (QMBs) coated with a dendronized polymer was used to detect small amounts of volatile organic compounds (VOCs) in the gas phase. The results were compared to those obtained with the commonly used 10 MHz QMBs. The 50 MHz QMBs proved to be a powerful tool for the detection of VOCs in the gas phase; therefore, they represent a promising alternative to the much more delicate surface acoustic wave devices (SAWs).
KW  - Biosensor
KW  - Quartz micro balances
KW  - electronic noses dendronized polymers inverted mesa technology
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1445
ER  - 
TY  - CHAP
A1  - Rabner, Arthur
A1  - Shacham, Yosi
T1  - A concept for a sensitive micro total analysis system for high throughput fluorescence imaging
N2  - This paper discusses possible methods for on-chip fluorescent imaging for integrated bio-sensors. The integration of optical and electro-optical accessories, according to suggested methods, can improve the performance of fluorescence imaging. It can boost the signal to background ratio by a few orders of magnitudes in comparison to conventional discrete setups. The methods that are present in this paper are oriented towards building reproducible arrays for high-throughput micro total analysis systems (µTAS). The first method relates to side illumination of the fluorescent material placed into microcompartments of the lab-on-chip. Its significance is in high utilization of excitation energy for low concentration of fluorescent material. The utilization of a transparent µLED chip, for the second method, allows the placement of the excitation light sources on the same optical axis with emission detector, such that the excitation and emission rays are directed controversly. The third method presents a spatial filtering of the excitation background.
KW  - Biosensor
KW  - Fluorescence
KW  - imaging
KW  - lab-on-chip
KW  - fluidic
KW  - lenslet array
KW  - LED chip
KW  - image sensor
KW  - biosensor
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1456
ER  - 
TY  - CHAP
A1  - Förster, Arnold
A1  - Stock, Jürgen
A1  - Montanari, Simone
A1  - Lepsa, Mihail Ion
A1  - Lüth, Hans
T1  - Fabrication and characterisation of GaAs Gunn Diode Chips for applications at 77 GHz in automotive industry
N2  - GaAs-based Gunn diodes with graded AlGaAs hot electron injector heterostructures have been developed under the special needs in automotive applications. The fabrication of the Gunn diode chips was based on total substrate removal and processing of integrated Au heat sinks. Especially, the thermal and RF behavior of the diodes have been analyzed by DC, impedance and S-parameter measurements. The electrical investigations have revealed the functionality of the hot electron injector. An optimized layer structure could fulfill the requirements in adaptive cruise control (ACC) systems at 77 GHz with typical output power between 50 and 90 mW.
KW  - Biosensor
KW  - Gunn diode
KW  - microwave generation
KW  - GaAs hot electron injector
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1462
ER  - 
TY  - CHAP
A1  - Platen, Johannes
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Microstructured Nanostructures – nanostructuring by means of conventional photolithography and layer-expansion technique
N2  - A new and simple method for nanostructuring using conventional photolithography and layer expansion or pattern-size reduction technique is presented, which can further be applied for the fabrication of different nanostructures and nano-devices. The method is based on the conversion of a photolithographically patterned metal layer to a metal-oxide mask with improved pattern-size resolution using thermal oxidation. With this technique, the pattern size can be scaled down to several nanometer dimensions. The proposed method is experimentally demonstrated by preparing nanostructures with different configurations and layouts, like circles, rectangles, trapezoids, “fluidic-channel”-, “cantilever”- and meander-type structures.
KW  - Biosensor
KW  - Nanostructuring
KW  - layer expansion
KW  - pattern-size reduction
KW  - self-aligned patterning
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1477
ER  - 
TY  - CHAP
A1  - Pijanowska, Dorota G.
A1  - Remiszewska, Elzbieta
A1  - Pederzolli, Cecilia
A1  - Lunelli, Lorenzo
A1  - Vendano, Michele
A1  - Canteri, Roberto
A1  - Dudzinski, Konrad
A1  - Kruk, Jerzy
A1  - Torbicz, Wladyslaw
T1  - Surface modification for microreactor fabrication
N2  - In this paper, methods of surface modification of different supports, i.e. glass and polymeric beads for enzyme immobilisation are described. The developed method of enzyme immobilisation is based on Schiff’s base formation between the amino groups on the enzyme surface and the aldehyde groups on the chemically modified surface of the supports. The surface of silicon modified by APTS and GOPS with immobilised enzyme was characterised by atomic force microscopy (AFM), time-of-flight secondary ion mass spectroscopy (ToF-SIMS) and infrared spectroscopy (FTIR). The supports with immobilised enzyme (urease) were also tested in combination with microreactors fabricated in silicon and Perspex, operating in a flow-through system. For microreactors filled with urease immobilised on glass beads (Sigma) and on polymeric beads (PAN), a very high and stable signal (pH change) was obtained. The developed method of urease immobilisation can be stated to be very effective.
KW  - Biosensor
KW  - Microreactors
KW  - surface modification
KW  - enzyme immobilisation
KW  - lab-on-a-chip
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1480
ER  - 
TY  - CHAP
A1  - Bukhari, Syed Faisal Ahmed
A1  - Yang, Wuqiang
T1  - Multi-interface level sensors and new development in monitoring and control of oil separators
N2  - In the oil industry, huge saving may be made if suitable multi-interface level measurement systems are employed for effectively monitoring crude oil separators and efficient control of their operation. A number of techniques, e.g. externally mounted displacers, differential pressure transmitters and capacitance rod devices, have been developed to measure the separation process with gas, oil, water and other components. Because of the unavailability of suitable multi-interface level measurement systems, oil separators are currently operated by the trial-and-error approach. In this paper some conventional techniques, which have been used for level measurement in industry, and new development are discussed.
KW  - Biosensor
KW  - Level sensor
KW  - multi-interface measurement
KW  - electrical capacitance tomography
KW  - ECT
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1498
ER  - 
TY  - CHAP
A1  - Tymecki, Lukasz
A1  - Glab, Stanislaw
A1  - Koncki, Robert
T1  - Miniaturized, planar ion-selective electrodes fabricated by means of thick-film  technology
N2  - Various planar technologies are employed for developing solid-state sensors having low cost, small size and high reproducibility; thin- and thick-film technologies are most suitable for such productions. Screen-printing is especially suitable due to its simplicity, low-cost, high reproducibility and efficiency in large-scale production. This technology enables the deposition of a thick layer and allows precise pattern control. Moreover, this is a highly economic technology, saving large amounts of the used inks. In the course of repetitions of the film-deposition procedure there is no waste of material due to additivity of this thick-film technology. Finally, the thick films can be easily and quickly deposited on inexpensive substrates. In this contribution, thick-film ion-selective electrodes based on ionophores as well as crystalline ion-selective materials dedicated for potentiometric measurements are demonstrated. Analytical parameters of these sensors are comparable with those reported for conventional potentiometric electrodes. All mentioned thick-film strip electrodes have been totally fabricated in only one, fully automated thickfilm technology, without any additional manual, chemical or electrochemical steps. In all cases simple, inexpensive, commercially available materials, i.e. flexible, plastic substrates and easily cured polymer-based pastes were used.
KW  - Biosensor
KW  - Potentiometry
KW  - thick-film technology
KW  - screen-printing
KW  - ion-selective electrodes
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1506
ER  - 
TY  - CHAP
A1  - Spannhake, Jan
A1  - Schulz, Olaf
A1  - Helwig, Andreas
A1  - Krenkow, Angelika
A1  - Müller, Gerhard
A1  - Doll, Theodor
T1  - High-temperature MEMS heater platforms: long-term performance of metal and semiconductor heater materials
N2  - Micromachined thermal heater platforms offer low electrical power consumption and high modulation speed, i.e. properties which are advantageous for realizing nondispersive infrared (NDIR) gas- and liquid monitoring systems. In this paper, we report on investigations on silicon-on-insulator (SOI) based infrared (IR) emitter devices heated by employing different kinds of metallic and semiconductor heater materials. Our results clearly reveal the superior high-temperature performance of semiconductor over metallic heater materials. Long-term stable emitter operation in the vicinity of 1300 K could be attained using heavily antimony-doped tin dioxide (SnO2:Sb) heater elements.
KW  - Biosensor
KW  - Hotplate
KW  - heater metallisation
KW  - high-temperature stability
KW  - electro-migration
KW  - doped silicon
KW  - doped metal oxide
KW  - antimony doped tin oxide
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1513
ER  - 
TY  - CHAP
A1  - Katz, Eugenii
A1  - Willner, Itamar
T1  - Magneto-controlled quantized electron transfer to surface-confined redox units and metal nanoparticles
N2  - Hydrophobic magnetic nanoparticles (NPs) consisting of undecanoate-capped magnetite (Fe3O4, average diameter ca. 5 nm) are used to control quantized electron transfer to surface-confined redox units and metal NPs. A two-phase system consisting of an aqueous electrolyte solution and a toluene phase that includes the suspended undecanoatecapped magnetic NPs is used to control the interfacial properties of the electrode surface. The attracted magnetic NPs form a hydrophobic layer on the electrode surface resulting in the change of the mechanisms of the surface-confined electrochemical processes. A quinone-monolayer modified Au electrode demonstrates an aqueous-type of the electrochemical process (2e-+2H+ redox mechanism) for the quinone units in the absence of the hydrophobic magnetic NPs, while the attraction of the magnetic NPs to the surface results in the stepwise single-electron transfer mechanism characteristic of a dry nonaqueous medium. Also, the attraction of the hydrophobic magnetic NPs to the Au electrode surface modified with Au NPs (ca. 1.4 nm) yields a microenvironment with a low dielectric constant that results in the single-electron quantum charging of the Au NPs.
KW  - Biosensor
KW  - Nanoparticles
KW  - magnetic particles
KW  - quantum charging
KW  - modified electrode
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1528
ER  - 
TY  - CHAP
A1  - Pijanowska, Dorota G.
A1  - Remiszewska, Elzbieta
T1  - pH-based detection of phenylalnine by potentiometric and colorimetric methods
N2  - In this paper, methods of sample preparation for potentiometric measurement of phenylalanine are presented. Basing on the spectrophotometric measurements of phenylalanine, the concentrations of reagents of the enzymatic reaction (10 mM L-Phe, 0,4 mM NAD+, 2U L-PheDH) were determined. Then, the absorption spectrum of the reaction product, NADH, was monitored (maximum peak at 340 nm). The results obtained by the spectrophotometric method were compared with the results obtained by the colourimetry, using pH indicators. The above-mentioned two methods will be used as references for potentiometric measurements of phenylalanine concentration.
KW  - Biosensor
KW  - Phenylalanine determination
KW  - enzymatic methods
KW  - pH-based biosensing
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1536
ER  - 
TY  - CHAP
A1  - Arida, Hassan A.
A1  - Kloock, Joachim P.
A1  - Schöning, Michael Josef
T1  - Novel organic membrane-based thin-film microsensors for the determination of heavy metal cations
N2  - A first step towards the fabrication and electrochemical evaluation of thin-film microsensors based on organic PVC membranes for the determination of Hg(II), Cd(II), Pb(II) and Cu(II) ions in solutions has been realised. The membrane-coating mixture used in the preparation of this new type of microsensors is incorporating PVC as supporting matrix, o-nitrophenyloctylether (o-NPOE) as solvent mediator and a recently synthesized Hg[dimethylglyoxime(phene)]2+ and Bis-(4-hydroxyacetophenone)-ethylenediamine as electroactive materials for Hg(II) and Cd(II), respectively. A set of three commercialised ionophores for Cd(II), Pb(II) and Cu(II) has been also used for comparison. Thin-film microsensors based on these membranes showed a Nernstian response of slope (26-30 mV/dec.) for the respective tested cations. The potentiometric response characteristics (linear range, pH range, detection limit and response time) are comparable with those obtained by conventional membranes as well as coated wire electrodes prepared from the same membrane. The realisation of the new organic membrane-based thin-film microsensors overcomes the problem of an insufficient selectivity of solid-state-based thinfilm sensors.
KW  - Biosensor
KW  - Heavy metal detection
KW  - thin-film microsensors
KW  - organic PVC membranes
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1545
ER  - 
TY  - CHAP
A1  - Barek, Jiri
A1  - Fischer, Jan
A1  - Navratil, Tomas
A1  - Peckova, Karolina
A1  - Yosypchuk, Bogdan
T1  - Silver solid amalgam electrodes as sensors for chemical carcinogens
N2  - The applicability of differential pulse voltammetry (DPV) and adsorptive stripping voltammetry (AdSV) at a non-toxic meniscus-modified silver solid amalgam electrode (m-AgSAE) for the determination of trace amounts of genotoxic substances was demonstrated on the determination of micromolar and submicromolar concentrations of 3-nitrofluoranthene using methanol - 0.01 mol L-1 NaOH (9:1) mixture as a base electrolyte and of Ostazine Orange using 0.01 mol L-1 NaOH as a base electrolyte.
KW  - Biosensor
KW  - Solid amalgam electrodes
KW  - voltammetry
KW  - carcinogens
KW  - 3-nitrofluoranthene
KW  - Ostazine Orange
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1554
ER  - 
TY  - CHAP
A1  - Baronas, Romas
A1  - Ivanauskas, Feliksas
A1  - Kulys, Juozas
T1  - Mathematical modeling of biosensors based on an array of enzyme microreactors
N2  - This paper presents a two-dimensional-in-space mathematical model of biosensors based on an array of enzyme microreactors immobilised on a single electrode. The modeling system acts under amperometric conditions. The microreactors were modeled by particles and by strips. The model is based on the diffusion equations containing a nonlinear term related to the Michaelis-Menten kinetics of the enzymatic reaction. The model involves three regions: an array of enzyme microreactors where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation, the influence of the geometry of the microreactors and of the diffusion region on the biosensor response was investigated. The digital simulation was carried out using the finite difference technique.
KW  - Biosensor
KW  - Reaction-diffusion
KW  - modeling biosensor
KW  - microreactor
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1569
ER  - 
TY  - CHAP
A1  - Lei, Yu
A1  - Mulchandani, Priti
A1  - Chen, Wilfred
A1  - Mulchandani, Ashok
T1  - Biosensor for direct determination of fenitrothion and EPN using recombinant Pseudomonas putida JS444 with surface expressed organophosphorus hydrolase. 1. modified clark oxygen electrode
N2  - This paper reports a first microbial biosensor for rapid and cost-effective determination of organophosphorus pesticides fenitrothion and EPN. The biosensor consisted of recombinant PNP-degrading/oxidizing bacteria Pseudomonas putida JS444 anchoring and displaying organophosphorus hydrolase (OPH) on its cell surface as biological sensing element and a dissolved oxygen electrode as the transducer. Surfaceexpressed OPH catalyzed the hydrolysis of fenitrothion and EPN to release 3-methyl-4-nitrophenol and p-nitrophenol, respectively, which were oxidized by the enzymatic machinery of Pseudomonas putida JS444 to carbon dioxide while consuming oxygen, which was measured and correlated to the concentration of organophosphates. Under the optimum operating conditions, the biosensor was able to measure as low as 277 ppb of fenitrothion and 1.6 ppm of EPN without interference from phenolic compounds and other commonly used pesticides such as carbamate pesticides, triazine herbicides and organophosphate pesticides without nitrophenyl substituent. The applicability of the biosensor to lake water was also demonstrated.
KW  - Biosensor
KW  - Organophosphorus
KW  - fenitrothion
KW  - EPN
KW  - biosensor
KW  - Pseudomonas putida
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1573
ER  -